Exploring the Effects of Light Radiation on Human Health

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Waiting for research to prove what we already suspect to be true could be a fatal mistake, Raywear explains.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


These days, most people already know enough about the harmful effects of sunlight to apply sunscreen before they spend an extended amount of time outdoors on a sunny day. But this wasn’t always the case. While early civilizations may have recognized that overexposure to the sun resulted in damaged skin, it wasn’t until the 1940s that an effective form of sunscreen was made widely available. And even then, the lotions didn’t receive widespread adoption until decades later when scientific studies proved that there was a serious health risk associated with overexposure..

Consider just how many lives were lost to skin cancer while society was waiting for science to confirm what was already widely known. Unfortunately, we’re in exactly the same position today when it comes to artificial lighting in modern grow rooms. Common sense suggests that the light radiation used to artificially grow plants is dangerous for the cultivators who are exposed to it for an extended amount of time. However, without a wealth of studies to support this thought — and in the absence of a commercialized market saturated with solutions to address the issue — safety’s simply not a consideration for many growers and their employers.

That’s why RayWear has made it its mission to educate the industry about the dangers of modern cannabis cultivation and provide protective solutions for the growers who work in these harsh environments. In order to help you understand the harm that light radiation can inflict upon humans, here’s a quick look at some of the most serious types of skin cancer facing unprotected cannabis cultivators.


3 Types of Skin Cancer that May Result from Exposure to Light Radiation


Types of skin cancer that can be caused by light radiation

Melanoma

Although melanoma only accounts for 3 percent of all skin cancer cases, it’s responsible for more than 75 percent of skin cancer deaths. That makes it one of the most serious form of skin cancer by far, and, sadly, it’s also the most common one among young adults in their prime growing years.

Basal Cell Carcinomas

The leading cause of skin cancer tumors, basal cell carcinomas commonly result in small, fleshy bumps that develop on the head and neck, although they can crop up elsewhere. This disease grows slowly, and though it rarely metastasizes, in severe cases, it can penetrate bones and inflict severe skeletal damage.

Squamous Cell Carcinomas

Whereas basal cell carcinomas largely stay put, squamous cell carcinomas can spread out to other areas of the body and grow into large masses. This disease generally manifests in tumors that appear as red, scaly patches, though in some cases it takes the form of fleshy nodules.


Don’t Wait Until it’s Too Late


Don’t make the same mistake that previous generations did by waiting for research to explain what should be fairly intuitive. Intense lights, especially the kind emitted by modern grow lights, particularly HIDs, pose a serious threat to the health and wellbeing of today’s cannabis cultivators. So don’t wait until it’s too late. Start protecting yourself today by wearing clothing that shields your skin from the harmful effects of light radiation.

Editor’s Note: Any company that handles cultivation should consider SOPs that reduce the impact of harsh light on their employees’ skin!


RayWear is designed specifically for the modern cultivator.

Raywear’s patent-pending fabrics offer up to 99% visible light radiation reduction, significant reduction in infrared (IR) light, and a rating of 50+ UPF (ultraviolet protection factor), the highest rating any fabric can achieve.

Visit our website to learn more or shop for light-protection options, or contact us directly for more information.


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  2. Want to get in touch with Raywear? They can be reached via the following methods:
    1. Website: https://raywearcc.com/
    2. Email: info@raywearcc.com
    3. Phone: 833-420-1010

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About the Author

At RayWear, we believe the cannabis industry and worker safety should grow hand in hand. That’s why we’ve made it our mission to help the men and women on the frontlines — the people actually cultivating the plant — feel safe while they’re at work.


The Devil is Always in the Details: How small details under AUMA matter

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Darryl Cotton of 151 Farmers discusses how legalization carries a host of concerns with it that may cause backsliding.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


The Devil is Always in the Details


Now that Cannabis is recreational and ‘legal’, I can go to my neighborhood dispensary and load up on legal weed, right? What else is there to worry about?

The truth is that there is plenty to worry about if you’re concerned about maintaining your civil liberties and you want to keep having access to the medical cannabis you’ve come to rely upon.

For the purposes of this article, we’re going to look at California’s Prop 64, the Adult Use of Marijuana Act (AUMA) and the subsequent passing of amendment SB 94, which combines medical and recreational cannabis with language that shows why the laws, rules and regulations will be of concern to anybody who consumes, produces, cultivates, or retails legal cannabis products. Your state’s rules may differ, but California is a good state to use as an example. Here’s why:


Legalization of cannabis means that environmental agencies will play an increasingly important role in determining who can cultivate and who can not.

Make no mistake about it, we're not saying that environmental protections are a bad thing. Rather, we are saying that cultivators and farmers need to be aware that new and existing governmental agencies will assume authority to change who can cultivate cannabis as well as how we do so.

For example, in AUMA, the law specifically addresses water diversion and wastewater discharge issues. Within the language of this law, up to 13 different government agencies may revoke a cultivation license in order to defend the environment, as detailed within the AUMA language in SECTION 2 - FINDINGS and DECLARATIONS paragraph (F):

Here, the ‘Devil is Always in the Details’. No one would argue that making laws, rules and regulations that would prevent water diversion and waste water runoff from illegal cultivation sites would be a bad thing. Ensuring regulated usage of pesticides and minimizing water use while also punishing ‘bad actors’ are all good things voters can support.

The problem is in the verbiage. Within the same paragraph discussing illegal marijuana growers, is also included the line about “if a business does not demonstrate they are in full compliance with applicable water usage and environmental laws, they will have their license revoked.” This language ties both the illegal and the licensed cannabis farmer together in the same provision. This was not by accident. Nothing ever is.


How can any business person protect themselves from future changes? They can’t.

All a business person can do is make an informed decision with the best information and advice they have available to them at the time. If the advice they are receiving comes from respected sources such as attorneys, accountants, and industry leaders, then they are probably receiving sound advice.

But if the law is written in such a way that current wisdom can be overturned with rules or regulations that have yet to be written, would an informed business person elect to invest in that industry?

For example, within AUMA, Division 10, Chapter 1, General Provisions 26001(2)(dd), there is a warning to investors that if they choose to invest in our industry, the regulations and measures, many yet to be defined, may in fact make the entire endeavor “Unreasonably impractical”.

What attorney or financial advisor would ever advise their client to sign a contract where there was language warning them that they may be potentially entering into a contract unworthy of being carried out by a ‘reasonably prudent business person’? Has there ever been a law passed in any other industry whereby this type of language was included?


When a local government opens up regulated cannabis, citizens need to know that our elected officials have a well-developed vision for how cannabis will work in their community.

If I were a business person considering investing in your community’s cannabis industry, I would want the following questions to be answered:

  1. When passing city or country ordinances, what peer reviewed papers were used as the basis for determining the number of licensed dispensaries allowed?
  2. In regards to retail cannabis businesses, how will medical or recreational cannabis products will be made available to the public and how will they be taxed?
  3. Since licensed dispensaries will be the only form of retail distribution for cannabis products in your community, what economic model was used to determine the number of licensed cultivators necessary to meet the local demand?
    1. For example, if I were investing in a cultivation license in the City of San Diego, I would need to know how many cultivators (and/or square footage) would be necessary to be able to supply the 36 licensed dispensaries that will be opened within the city.
    2. If we continue this example, City of San Diego is licensing 40 cultivation sites. A regulatory commission must calculate both the low range of production for those cultivation sites as well as the high range and see if it fits the potential demand for products.

Now some might argue that the city is not in the business of restricting the square footage of the licenses for cultivation. I would say that is not true. By controlling the number of licenses available, cities could put themselves in a advantageous position over the industry. A city with heavy restrictions would raise the price of products until customers turn to alternative, unlicensed suppliers. Licensed cultivators, have to compete with both licensed and unlicensed cultivators in the city and from around the state. Severe restrictions in a city may give other cultivators the advantage of lower operating costs and thus a competitive advantage.


Let's do some math!

So how economical is Prop 64 in a given city? Let's take a look at San Diego.

  1. San Diego is licensing 36 retailer sites (dispensaries).
  2. The best industry averages estimate that cannabis retailers sell about 1 pound of cannabis per day, or 454 grams.
  3. If we assume that the retailer is open 365 days out of the year (x365), then on average they will sell nearly 165,710 grams per store per year.
  4. With 36 licensed stores (x36), that comes out to 5,965,560 grams of cannabis flower required for the local cannabis market per year.

So great! San Diego will probably need about 5.9-6.0 million grams of cannabis per year, or over 13,000 pounds. So how much cultivation space will we need to supply that demand? Let's do some more math!

  1. Statistical averages of cultivation estimate that cannabis flower yields are around 30-50 grams per square foot per harvest cycle, with an average of 4 harvests per year. So, on average, 120-200 grams per square foot per year.
  2. Now if we divide 5,965,560 grams of cannabis flower by this range, we arrive at some low-end and high-end estimates of cultivation space necessary to supply demand for the city:
    1. High-Yield Estimate (200 grams per square foot per year): 29,827 sq-ft of cultivation space.
    2. Low-Yield Estimate (120 grams per square foot per year): 49,713 sq-ft of cultivation space.

But wait! San Diego also licenses the number cultivation sites. So the square footage we provided above needs to be further divided by the number of licenses that San Diego anticipates it will need:

  1. San Diego is licensing 40 cultivation sites.
  2. Let's use the ranges we established above, and divide by 40!
    1. High-Yield Estimate: 29,827 ÷ 40 = 745 square feet per cultivation license to feed local demand.
    2. Low-Yield Estimate: 49,713 ÷ 40 = 1,242 square feet per cultivation license to feed local demand.

That's not a lot of space needed. While dispensaries can raise prices to deal with taxes or mandatory fees, cultivators' hands are tied by what dispensaries are willing to pay and how other cultivators can undercut them. Per AUMA Section 7, Paragraph 34012(a)(1), cultivators will be taxed by the State on that flower at a rate of $9.25 per dry weight ounce and on the leaves at a rate of $2.75 per dry weight ounce before it can leave the farm.

In short, in this described scenario... it would be a bad business decision to be a cultivator in most circumstances. As business people who consider themselves to be ‘reasonably practicable’ we’d really like local governments to tell us what the total square footage of cultivation licensing is going to be in your city, how much of that will be used for medical and how much will be used for recreational and how many dispensaries is that expected to serve?

Or, as the saying goes... the devil is in the details.


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Resources:

  1. Want to learn more about subjects similar to those touched upon in this article? Check out our articles on subjects such as:
    1. An Introduction to Closed Loop Hydroponics - Part 1
    2. An Introduction to Closed Loop Hydroponics - Part 2
    3. An Introduction to Closed Loop Hydroponics - Part 3
    4. Using Climate Control to Prevent Disease
    5. Drain or Reclaim
    6. Minimizing Data Security Risks in the Cannabis Industry
  2. Want to get in touch with 151 Farmers or Darryl? They can be reached via the following methods:
    1. Website: http://151farmers.org/
    2. Email: info@151Farmers.org

Do you have any questions or comments?

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Aflatoxins: What are they and where do they come from?

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Andrea Nolte and Stephen Goldman of Evio Labs explain one of the dangers associated with Aspergillus species: Aflatoxins.

Andrea Nolte | Stephen Goldman

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


Aflatoxins are a variety of mycotoxins produced by Aspergillus parasiticus and Aspergillus flavus that suppress the immune system, mutate DNA, cause liver cancer (technical name: hepatocarcinoma), and can cross the placenta to exert harmful effects upon a fetus.

After years of research, researchers have elucidated a malignant profile for aflatoxins:

  1. Normally the liver metabolizes a variety foreign substances, including pharmaceutical drugs, mycotoxins, and environmental toxins. This metabolism prepares these foreign substances for excretion.
  2. After significant exposure to aflatoxin, the liver experiences a specific mutation in the p53 human tumor-suppressor gene.
    1. This mutation inhibits the liver from its normal metabolic processes. This means that harmful substances can damage DNA or other cellular processes, which can lead to cancerous growth and life-threatening tumors.

Due to this fact, aflatoxins are classified as level 1 carcinogens. Level 1 carcinogens are compounds which are known to be carcinogenic in humans, and it is the most toxic classification a molecule can have. There are five types of aflatoxins that the public should be aware of:

  1. Aflatoxin B1
  2. Aflatoxin B2
  3. Aflatoxin G1
  4. Aflatoxin G2
  5. Aflatoxin M1
    1. Aflatoxin M1 is not a direct product of Aspergillus species, but instead is an metabolite produced by animals that have consumed aflatoxin-contaminated feed.

Another class of mycotoxins found in Cannabis, called ochratoxins, have similar carcinogenic and mutagenic profiles to aflatoxins. Ochratoxin A is produced by Penicillum verucosum and Aspergillus ochraceus. These fungal products are deemed mutagenic (and therefore carcinogenic) due to their ability to break DNA strands and inhibit DNA repair mechanisms.


What can be done if you detect aflatoxins?


When there is a profound aflatoxin contamination in a crop, there is little, if anything, that can be done to remediate it. Some individuals may try “mixing” or “cutting” a contaminated batch with a non-contaminated batch in order to dilute the problem. This is generally not allowed for consumable crops by FDA regulation, although there have been extenuating circumstances in the past where exceptions have made.

Some methods of remediation, such as treatment with ammonia, are strictly prohibited, while other methods, such as heat treatment, are ineffective. Aflatoxins are chemically stable, allowing them to withstand temperatures higher than 160⁰ Celsius, well above the melting point of cannabinoids. If these mycotoxins are present in cannabis during harvest, then they cannot be removed simply. They also have the potential to become concentrated during cannabis extraction processes that yield cannabis oils, making them potentially even more potent.

The threat of aflatoxins and ochratoxins is seemingly unavoidable when Aspergillus species are present; but you can take steps to minimize their risk. Preventing aflatoxin production during harvest and storage is the most practical solution for mitigation. Aspergillus species are fungi that prefer to grow in oxygenated, moist environments.

Despite the lack of cannabis protocols from the FDA, there are some basic techniques that can be utilized to reduce or avoid the production of aflatoxins and ochratoxins. These suggestions pertain to growing, harvesting, and storage:

Growing:

  1. Keep your RH well under the dewpoint to prevent fungal growth
  2. Prevent wild temperature fluctuations in your growing space.
  3. Do not leave standing water.

Harvest:

  1. Avoid late harvesting (dense buds contain significant amounts of water and air, which promote fungal growth)
  2. Maintain effective pest control strategies (according to relevant state-guidelines)

Storage:

  1. Minimize lag time between harvesting and drying
  2. Maintain strict hygiene of storage facilities and containers
  3. Dry the product to below 14% moisture content (less than 0.7 water activity, aw)
  4. Maintain pest control post-harvest (insects can introduce extra water and heat into the environment, giving fungi and bacteria the opportunity to grow)
  5. Control the gaseous environment by reducing oxygen content and replacing with nitrogen or carbon dioxide. This may also be applicable for pre-packaging processes prior to dispensary distribution.

It is crucial to understand the threats of aflatoxins and ochratoxins so that proper steps can be made to avoid their production. The most fundamental aspects are starting with a clean environment for the drying and storing processes by reducing humidity, oxygen and pest insects. When guidelines published in relation to other crops are applied correctly to cannabis, it is likely that the threat of aflatoxin and ochratoxin contamination can be significantly impeded.


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Resources:

  1. Want to read some of the sources for this article? Check these out:
    1. Aflatoxins. International Agency for Research on Cancer (IARC) 100F. Available at https://monographs.iarc.fr/ENG/Monographs/vol100F/mono100F-23.pdf . Accessed 12 Oct. 2017.
    2. Federal Drug and Food Administration (1994). FDA Mycotoxin Regulatory Guidance: A Guide for Grain Elevators, Feed Manufacturers, Grain Processors and Exporters. Washington D.C.: National Grain and Feed Association, pp.1-15.
    3. Naresh Magan, David Aldred, Post-harvest control strategies: Minimizing mycotoxins in the food chain, In International Journal of Food Microbiology, Volume 119, Issues 1–2, 2007, Pages 131-139, ISSN 0168-1605, https://doi.org/10.1016/j.ijfoodmicro.2007.07.034.
    4. http://www.sciencedirect.com/science/article/pii/S0168160507003972
  2. Want to learn more about subjects similar to those touched upon in this article? Check out our articles on subjects such as:
    1. Growers Network's Pest Profile: Caterpillars
    2. Growers Network’s Pest Profile: Fungus Gnats
    3. Aspergillus: The Most Dangerous Cannabis Pathogen
    4. Vapor Pressure Deficit
    5. A Short History of Cannabis Consumption
  3. Want to get in touch with EVIO Labs? They can be reached via the following methods:
    1. Website: http://eviolabs.com/
    2. Email: info@eviolabs.com

Do you have any questions or comments?

Feel free to post below!


About the Author

EVIO Labs is the leading national provider of accredited cannabis testing, providing high quality analytical and consulting services for agricultural and biomedical industries in North America. EVIO Labs is dedicated to providing clients with superior customer service, reliable results, and world class expertise. No matter which lab in the EVIO Labs network you choose, you will receive the same high level of accuracy, customer service, and professionalism.


Cannabis Taxes are Sending Bright, Young Coloradans to College

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Michelle Janikian of Rosin Tech explains how tax revenue from the cannabis industry is fueling the next generation.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


Disclaimer

This article was originally published on Rosin Tech. Click here to see the original article.


Colorado has been leading the charge for legal cannabis since it first legalized adult use in 2012. Now, the state continues leading the way by using its cannabis sales tax revenue to fund higher education for its students.

Nestled in the foothills of the Rocky Mountains, Pueblo County, CO, is breaking the mold. Its new initiative to provide higher education scholarships using tax income from the region’s cannabis growers is showing promise. Starting in 2016, the predominantly agricultural county was able to successfully trial a scheme to provide scholarships to over 300 students. On the back of this success, the program was expanded the following year, and provided hundreds of more students with college scholarships. Now, 2018 looks bigger still.

Although Colorado has already found multiple uses for its cannabis tax revenue, from funding social programs and local government. all the way to building schools and affordable housing; Pueblo County’s initiative is the first of its kind with regards to funding higher education. It’s nearly impossible to understate the value of a university education, but with the modern cost of college being so prohibitive, it often remains out of reach for many lower income students, regardless of their talent. Scholarships can make the difference, evening the gap. Now that cannabis is funding these scholarships, we have another fantastic example of how legalization can benefit us all.

So where exactly is the money coming from exactly? The tax itself is drawn from cannabis cultivators in Pueblo County. That’s significant because Pueblo county is responsible for growing one-fifth of Colorado’s legal pot. It’s no surprise that the fund is generating massive amounts of cash. In 2015, Pueblo residents voted to introduce an excise tax that at least half of which would be used to fund education. Since then, the 5 percent tax, which is charged only once to cultivators making their first retail sale, has generated hundreds of thousands of dollars.

The Pueblo County Scholarship Fund was created by a ballot initiative in the 2015 Coordinated Election. A minimum of 50 percent of all of the marijuana excise tax collected in Pueblo County is allocated to the Pueblo County Scholarship Fund. The remaining marijuana excise tax revenue is allocated to a list of community enhancement projects.Paris Carmichael, Pueblo BOCC Community Information Manager

In fact, this year the program brought in $700,000 alone, which is matched in part by the Colorado Opportunity Scholarship Initiative, part of the state’s higher education department initiatives. This sum is expected to award at least 600 students in 2018 with individual scholarships between $1,000 to $2,000 of financial aid. And best of all, if you’re a high school senior in the Pueblo County who has been accepted into a local college or university, you’re automatically eligible. All you need to do is apply here.

With Pueblo County’s program garnering so much success, Colorado is showing the rest of us exactly what cannabis tax revenue can be used for. Hopefully, programs similar to this will be taken up by other legal states and continue to grow and provide much-needed financial assistance to students throughout the U.S. College isn’t cheap, and hopefully cannabis can ease the burden on low-income students.

One other thing -- if you’re an undergrad or recent graduate looking to get into the cannabis industry, there are also internships you can apply for, like with SHO Products. Our interns learn the ins-and-outs of the cannabis industry by working with us 20 to 40 hours a week, ensuring a full hands-on experience. You’ll leave college and our internship ready to begin working in the industry full time. What are you waiting for? Apply today!


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Resources:

  1. Want to learn more about subjects touched upon in this article? Check out our articles on subjects such as:
    1. Latin America: Leading the Way on Cannabis Reform
    2. The Cannabis Industry: The Effects of Big Data and Technology
    3. Women in the Cannabis Industry: Stay Strong
    4. Minimizing Data Security Risks in the Cannabis Industry
    5. Harvest Podcast: The Wonders of the Metabolism
  2. Want to get in touch with Rosin Tech? They can be reached via the following methods:
    1. Website: http://www.rosintech.com/
    2. Email: media@shoproductsteam.com

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About the Author

Michelle Janikian is writer focused on drug policy, trends, and education, especially in the legal cannabis industry. In addition to writing for Rosin Tech, she is a regular contributor to Herb and Playboy. You can follow her on Twitter @m00shian.


Artificial Intelligence is the Latest Greenhouse Automation Technology

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Motorleaf explains how the future of automation lies in advanced artificial intelligence technology. Robots taking over your grow? Often, sophisticated software is all you need.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


Disclaimer

This article was originally published by Motorleaf. If you would like to read the original article, click here.

Artificial intelligence (AI) is likely a familiar term to many readers, but how this technology can automate tasks and increase efficiencies in your greenhouses may seem unclear. After all, when most people think AI, they think of Skynet from the Terminator series. AI is a lot simpler than you might first think.


What is artificial intelligence?

AI is just sophisticated software, ultimately. And artificial intelligence does not necessarily need to have predetermined logic.

Using artificial intelligence, Motorleaf builds sophisticated software that can actually learn by finding patterns and associations in data -- since data is essentially ‘a lot of information,’ computers are ideal for identifying patterns.

Once the AI software learns the patterns, you can provide the AI new information and ask it, “what do you think will happen under these circumstances?” and the AI tool will offer a prediction and give you its estimated degree of accuracy, which is higher the more training data it has to work with.


An example of computer learning in action.


No need for robots, but just as smart

Machine learning is the type of AI technology we use in our greenhouse automation services. There are no machines involved other than powerful computers -- so no, there’s no robots automating greenhouse tasks in this case. As made apparent by the name “Machine Learning”, our greenhouse technology does learn, and gets more and more accurate as it gets more data sets to work with following each harvest cycle.

But I want robot farmers!

For instance, our clients have witnessed a 50% to 70% reduction in error in harvest forecasts from the start; following a year of further learning, the AI technology can reduce errors by more than 70%. The AI technology will also become more accurate in predicting harvest yields weeks into the future.

AI tools for greenhouses get better and better over time. That’s a smart investment if you want your money to go the extra mile.


Why does AI solve problems with harvest forecasts for greenhouses?

There are many factors that influence plant growth and the ripening of produce in your greenhouse. It is impossible for humans to analyze all of these individual factors and know exactly how your plants will grow.

But nothing’s stopping a computer from examining all of these factors at once. AI is able to simultaneously analyze all of these growth factors, providing highly accurate assessments of plant growth. This is why AI works so well for making estimates of future harvests.

AI is better at estimating harvest yields than expert agronomists, which allows you to automate this task so that your Head Growers and agronomists can focus their time on other important issues that a computer may not be able to solve. On average, agronomists free up over a day of time they otherwise spent doing harvest forecasts. Best of all, our technology requires no radical changes to your business.

Editor’s Note: There’s another hidden advantage to machine learning. Machine’s don’t rely on intuition at all, just looking at what works and what doesn’t. Sometimes computers will notice correlations between sets of data that humans would otherwise miss.


Join the agriculture technology revolution and benefit from the latest means to automate your greenhouse. Submit an order or request more information today on our website.


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Motorleaf is poised to disrupt the agricultural industry by using its Agronomist.ai software platform to monitor and predict environments through sensor data. Delivering actionable, data-driven insights to greenhouse operators and indoor farmers is our M.O. Using machine learning and artificial intelligence for yield predictions improvements and optimization, we are committed to helping greenhouse operators match their supply with demand dynamics to help them optimize their marketing dollars, plan their labour needs, and increase their margins. We connect growers to their plants, and to each other.


10 Things to Look For When Selecting an LED Grow Light

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GrowFlux takes us through their top 10 list of factors to look for when you’re picking out an LED grow light. Let’s see what advice they have for us!

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.

Selecting an LED grow light can be a daunting exercise, especially given the number of options and the lack of uniform labeling specifications. GrowFlux has put together this simple guide to arm consumers with some hard-hitting questions next time they encounter someone marketing "The Most Advanced Grow Light".

Without further ado:


1. Efficiency

Any reputable LED grow light manufacturer should be able to provide a third-party certified test result indicating the efficiency of their product in photonic units (PPF, measured in micromoles per watt or μmol/W). In our experience, even well-established LED lighting manufacturers have used false or erroneous numbers as recently as Summer 2018. We hope this behavior will cease when a Horticulture Lighting Label is finalized.

Image credit: Intertek


2. Spectrum

Any LED grow light manufacturer claiming to have an “optimal spectrum” is misleading its customers. This is because plants will respond to many different spectrums quite well, while no one spectrum is perfectly suited to all stages of plant growth and all cultivars. At GrowFlux, we design our products to be capable of millions of potential broad and narrow spectrum profiles without sacrificing output, allowing a cultivator to develop tailored spectrums for their unique conditions, cultivars, and desired outcomes.

Broad Vegetative 5000K with Far Red and flowering spectrum distributions. GrowFlux lights are uniquely capable of delivering both of these spectrum settings at full power.


3. Power Factor

Any modern LED lighting fixture should have a power factor of at least 0.90, which will be required by the Design Lights Consortium as they release their final policy. GrowFlux products feature active power factor correction typically exceeding 0.95.


4. Ingress Protection

Any horticulture lighting product should be listed for humid and wet conditions, otherwise fixtures will probably not stand up to greenhouse conditions or the sanitizing agents commonly used indoors.

Editor's Note: Remember that the growing space is alive, and stuff is always happening!


5. Cooling

Actively cooled fixtures are able to operate at cooler temperatures and across a wider operating temperature range when compared to passively cooled fixtures. If you are considering a passively cooled fixture, look closely at the operating temperature range and ask the manufacturer how well the fixture will perform in stagnant air conditions, which can easily occur if mounted to a rack. Finally, high operating temperatures limits LED life, so be sure to ask for the expected 90% or 70% lifetime output for a passively cooled fixture. GrowFlux products are guaranteed for 90% output at 50,000 hours.

Thermal imaging of a FluxScaleTop Light fixture

If you are considering a fan-cooled lighting product, ask the manufacturer the Mean Time Before Failure (MTBF) for the fans, and what happens in the event of a fan failure. In the event of a fan failure, you should want to be covered by a warranty.

If you are considering a passively cooled fixture, discuss the conditions surrounding the fixture with your lighting manufacturer. You should have a good idea of whether you are expecting stagnant or consistently moving air around the fixture as well as the distance between the fixture and ceiling or other impermeable surfaces, as these conditions have a significant impact on passive cooling.


6. PAR Maintenance

Even today's worst-performing LED grow lights should be able to maintain 70% output at 50,000 hours, while the highest performing lights in 2019 will reach or exceed L90% at 50,000 hours. Investing in lights with enhanced PAR maintenance extends the return on investment in your lighting system. If your manufacturer can't provide their TM-21 Energy Star calculations, stay far away.

Graph indicating L70% and L90% at 50,000 hours. Many products on the market can degrade as much as 10% in the first 2 years, threatening ROI.


7. Optical Distribution

PAR uniformity on the canopy is nearly as important as energy efficiency. Look for PAR maps which indicate the optimal mounting heights and PAR levels over an area representative of your intended application. For example, we offer PAR maps which show the expected PAR levels for a variety of cultivation situations and mounting heights.

LED fixtures can have drastically different optical distributions depending on the LEDs, lenses, or reflectors in the product. Manufacturers should be able to provide PAR maps representative of your cultivation conditions to help you accurately assess anticipated PAR levels.


8. Tunability

Tunable fixtures offer the ability to tailor the light spectrum to the stage of growth or specific outcomes. If you are looking at tunable fixtures, be sure to understand how tuning the spectrum affects the output of the fixture. Most tunable LED fixtures only emit one spectrum setting at full power; any modified spectrum from the full power setting reduces overall PAR output of the fixture. Ideally you want an extended tunable range, offering you a wide variety of spectral settings at full output.


9. Certifications & Labeling

In North America, LED horticultural lighting products should be certified to UL1598, a safety standard for commercial lighting products. Products that do not comply with UL1598 are not eligible for energy rebates or Design Lights Consortium approval.

In the near future, an industry standard for a Horticulture Lighting Label will be formalized. This lighting label will require third-party lab reported total PPF as measured by an integrating sphere as well as a PAR map showing PPFD. Once such a standard is released, do not purchase an LED product that does not comply with the label, as manufacturers who do not comply with the labeling requirements will probably have performance issues that they are hiding.


10. Wireless & Control

If you are considering a lighting solution with remote control capabilities, make sure you consider how much time and effort is involved in networking the fixtures. Wireless grow lights can take several minutes to an hour to configure - for each individual fixture. We have also observed networked lights that require data cables and additional external controllers, which can greatly increase the cost and installation time of the solution. Finally, be sure to find out if the control solution requires a separate license fee or setup charge.

If you are considering lights with wireless control capabilities, ask your lighting manufacturer how many years they have been testing the reliability and scalability of their wireless solution. Find out what wireless protocol and frequency is being used, and determine whether the wireless connection will penetrate through the walls in your grow rooms or if you need to purchase separate networking hardware for each room. If you are looking at WiFi networked lights, consider the cost and maintenance associated with installing a network capable of supporting the number of fixtures you are installing. Ask about wireless network security. Finally, be sure to find out if the control solution requires a separate license fee or setup charge.

GrowFlux’s own AetherMesh wireless technology penetrates deep into dense buildings, providing highly secure and reliable connectivity to thousands of lights on one network.


Want to learn more about what GrowFlux has to offer? You can check out their website here. They have a ton of educational content on their blog if you want to read more before about LED grow lights as well.


Interested in checking out more LEDs? Click here!



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About the Author

GrowFlux offers tunable broad spectrum LED grow lights and connected agricultural sensors which help growers save energy, improve consistency, and enhance quality control. The GrowFlux Cloud is a quality control and management solution developed with the unique needs of Controlled Environment Agriculture (CEA) in mind, and is used in cannabis production, vertical farming, biopharmaceutical production, and cGMP managed CEA facilities.


How to Grow Cannabis 143 – Pests and Disease Management

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Now that you’ve hit vegetative state, we want to keep an eye on your plants to make sure that they stay healthy!

The following is an article produced by Growers Network. This article is for educational purposes only. We do not claim any responsibility for any legal or financial repercussions of your decisions. Always consult with a lawyer or attorney before making a decision that could have a legal consequence!


Pests and Disease


We’d love to assume that everything will go perfectly in your grow, and nothing will attack the plants and harm them. But let’s be honest -- pests always find a way to hamper whatever you’re doing. Even computer scientists are familiar with computer “bugs,” where some of the first computer glitches were caused by actual bugs in their computers!

So let’s head the problem off. In this How to Grow Cannabis post, we’ll discuss a few different pests and some environmentally friendly solutions to them. We’re making a point of encouraging environmentally-friendly prevention tactics, as we believe clean weed is the best weed.


Do you want to learn how to grow cannabis? Check out Growers Network University!


Arthropod Pests


Indoors

Indoors, you generally shouldn’t encounter too many insect pests on the macroscopic scale. If you have bugs getting into your house all the time, you may have a bigger concern on hand. That said, if you’re getting roaches in your house all the time, be careful not to set roach traps anywhere near the cannabis, and should you find any roaches, remove them immediately.

In indoor grows, we do have to worry about mites, particularly spider mites. These microscopic buggers (and I do mean buggers) can ruin your crop. Unfortunately, you can’t see them without a microscope or a magnifying glass. If you want a handheld microscopes, there are some cheap ones available here, or if you want a jeweler's loupe or magnifying glass, there are cheap ones here.

A really bad spider mite infestation. If you see this, burn it down. Literally.

Should you not have a microscope, keep an eye out for any webbing or cobwebs that appear mysteriously on your plants. If you see these, immediately destroy the plant, the pot, and throw out the soil. Spider mites are a nightmare to deal with once you have an infestation.

Prevention

Preventing bugs indoors can be done relatively cheaply and safely.

Diatomaceous Earth (abbreviated as DE) is made up of microscopic skeletons that poke holes in insect exoskeletons, causing them to gradually bleed out and dry up. But it’s almost entirely harmless to mammals unless you start inhaling the stuff. Diatomaceous earth can be spread liberally around the plants. Just be warned though, if you get it wet you will need to add some more. DE can be safely used at any point in the plant’s life cycle.

You can also use essential oils during vegetative state, which plugs up the proboscis of most larger insects, and drowns smaller insects. Essential oils can include a multitude of vegetable-based oils, including:

  1. Rosemary Oil
  2. Garlic Oil
  3. Peppermint Oil
  4. Clove Oil
  5. And more!

These oils are non-toxic to humans, and are generally safe to use throughout the vegetative state. However, you should try to avoid using them once you enter flowering.

If you need to go a little bit heavier, Neem Oil is available as well. Try to restrict its use to the early part of veg, and away from flowering state. We’ve heard some anecdotal reports that Neem Oil may be responsible for cannabis hyperemesis syndrome, but there hasn’t been a conclusive study performed yet.


Outdoors

Outdoors insect pests will vary based on where you live. If you’re not certain what the pest is, or how to treat it, call up the closest university or agricultural research institute and ask about it.

Mm, cannabis sounds DELICIOUS!

The most common insect pests for outdoors cannabis are grasshoppers and “boring” caterpillars. Other than preventative sprays and diatomaceous earth, you can try polymer barriers to prevent infiltration by these pests.


Fungi

Fungi and fungal spores are nearly ubiquitous around the planet. Even NASA can’t get rid of them entirely. However, you can prevent the formation of fungus through a few simple steps:

  1. Keep water off of the plant’s leaves. Liquid water is a breeding ground for fungus. If you need to water the plant, only water the soil or the roots.
  2. Drop your humidity levels if you live in a humid environment. Normally, air conditioning units remove humidity from the air, but you may want to buy a specialized dehumidification system to go with your plants, because they also humidify the air. You can also buy desiccant packs, which you’ll need to recharge or replace eventually.
  3. Add some fans. By increasing airflow, you prevent the chance for microclimates to form and remove the extra humidity produced by the plant’s transpiration.

Should any issues arise, consult with your state or city officials about what your options are with regards to pesticides. Some locales allow the use of sulfur dust to treat fungus, which is generally considered safe. If the problem is really bad, you may just need to burn the plant, dump the soil, sanitize the pot, and start over. Many fungicides are extremely harsh and dangerous to humans, and we don’t recommend most of them for that reason.


Microbes

Generally speaking, when you’re growing in soil, you shouldn’t have too many issues with microbes. Soil is a self-regulating environment that generally prevents excessive growth of certain microbes. That said, it can’t hurt to head a problem off before it happens. Several companies provide microbial supplements and mycorrhizae supplements.


Was there something we didn’t mention? Put it in the comments below, and we’ll see what we can do to add it to our list!


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About the Author

Hunter Wilson is a community builder with Growers Network. He graduated from the University of Arizona in 2011 with a Masters in Teaching and in 2007 with a Bachelors in Biology.


CCell Palm Review

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Andrew Lucas of Growers Network tells us about his experience using the CCell Palm.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.

I enjoyed this powerful and discreet vaporizer over the last month, bringing it with me everywhere; from 9-5 work to a night out to the bars. Having used a PAX ERA for some time, I was excited to try a different vaporizer, and the PALM offered a different but excellent experience.

The first thing I noticed about the Palm was the stylish, modern look of the battery. If you've experienced firsthand the lackluster quality of most e-cig batteries, you can feel how sturdy and ergonomic this battery is. It fits perfectly into your palm with a good but not overbearing weight.

As the name suggests, the battery is encased in a sleek aluminum alloy textured grip that fits in the palm of your hand. Which is a good thing because the Palm hits much harder than the PAX ERA, even on the first use. I partake pretty regularly, but I prefer a gentle, medicated high throughout the day. It took me a few days to get a feel for how much to draw so that I wouldn’t end up couch-locked. The larger draws and fuller hit have made this my go-to vape for social smoking, because the PALM offers a hit similar to a bong rip, unlike other Vape Pens that hit you gently.

The small size and smooth rectangular shape make vaping in the wild discreet and comfortable. Seriously, if discretion and convenience are your game, the Palm is made just for you. The size and shape allow you to easily store the Palm in your pocket with even the most useless skinny jeans pockets (speaking from experience). The transparent tip and the smooth slide means you can take a hit virtually anywhere. I was able to pass it between several of my friends all night at the club, and no one was the wiser.

Using it is easy enough - you insert your cartridge and let the internal magnet lock it into place. The battery heated my concentrates evenly every time, and I got a consistent vapor, rich flavor, and extreme potency with each draw. It turns on and off with each inhale, which is probably one of the best perks I look for in a vape, because after a few great hits I'm not going to fumble with a button or explain what button to press to everyone.


  • Pros

     

  1. Large battery capacity. As a light smoker, it took me almost 3.5 weeks of regular usage to kill the battery, and I went through 1.5 cartridges during that time.
  2. Magnetic connector seamlessly attaches the cartridge on top.
  3. Small size, barely-visible light, and a textured grip give you a great mix of comfort and concealment.
  4. CCELL batteries are supposedly capable of providing 25% more vapor volume compared to other vapes, and the Palm met that expectation.


  • Cons

     

  1. The magnetic connector felt loose with some cartridges. I used the adaptor that comes with it once, and it never fell out, but I was worried a few times.


Final Stoner Thoughts

Since the hits were so much stronger than the PAX, I usually got significantly higher than I intended to the first few times. The Palm grip compounded this fact since I never unclenched my fist to set it down, and as every stoner knows, if you find weed in your hand, you gotta take that hit; something I found myself doing - a lot.


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About the Author

I'm an award-winning designer whose equal parts passion and cynicism based in Tucson, AZ. A connoisseur of art, ideas, and culture I transform companies by designing brand experiences, driven by strong creativity and rooted in the technology, data, and organizational strategy. I combine these strategies into a single solution, creating unified brand experiences that change industries and foster meaningful relationships with the end users companies need to succeed and grow. I currently serve as the creative director for Growers Network as well as provide the art direction for the Youtube show “CannaCribs.” In my spare time, you can find me taking my love of punk rock and pop culture into digital art.


Airflow: Think Positive

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Daniel Monk of Agratech takes us through a few heating and cooling options in a greenhouse, and explains to us the benefits and drawbacks of each.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


Disclaimer

This article was originally published on another website. If you would like to read the original article, click here.

Greenhouse cooling and ventilation systems have a direct influence on what enters and exits the greenhouse. This is especially important in warmer climates where a large volume of air is constantly being pushed throughout the grow area. Regardless of whether you are pulling or pushing this air, the structure is important not only for temperature management, but also in pest control.

There are three fundamental greenhouse-cooling systems:

  1. Natural ventilation
  2. Negative pressure
  3. Positive pressure

If your crop is one that thrives in an insect-free environment, one of these systems is the superior choice, providing optimal temperature control and pest control.


Natural Ventilation

Now I know what you’re thinking. What’s the cheapest option?

Well, the cheapest option is natural ventilation. Natural ventilation can be very effective at controlling air temperature in the right climates, however, the price and temperature control often sacrifices the potential for insect exclusion. Insect screens/nets for passively or naturally ventilated greenhouses can still result in undesirably high air temperatures as they restrict natural airflow.

In warmer climates where temperature control and pest management is important to the survival of the crop, a negative or positive pressure cooling system is usually the better choice.


Negative Pressure

A negative-pressure cooling system relies on pulling air through the greenhouse with exhaust fans. The process pulls outside air through cooling pads or a cooling wall located on the opposite wall from the exhaust fans.

During this process, cool air is traveling from one end of the greenhouse to the other, mixing with the warm air in the greenhouse. The heat from the warm air then transfers into the cool air, resulting in fluctuating air temperatures throughout the structure.

The coldest air is found closest to the cooling wall, while temperatures continually rise as the air approaches the exhaust wall. This can be a substantial change in air temperature from one end of the greenhouse to the other depending on square footage, climate, rate of airflow, etc. Furthermore, as the air is pulled into the greenhouse, insects can also be pulled in through any opening in the structure (doors, vents, tears, cracks, and more) Fortunately, this infiltration can be prevented up to a point with the proper insect screens in the right locations, usually both at air inlets and outlets.


Positive Pressure

A positive pressure cooling system forcefully pushes cool air through ducting into the greenhouse. The air can escape through any openings (doors, vents, tears, cracks), but it is at a pressure high enough that any flying insects attempting to enter will be repelled by the air speed. A system like this creates a uniform temperature through the growing space at +/- 2 °F. To avoid pushing insects into the greenhouse, this type of system does require an insect screen or filter at the air inlet. For example, a positive pressure cooling system like Agra Tech’s Agra Kool II in combination with Svensson’s ECONET 1515 can offer superior cooling while also excluding pests even as small as a thrip.


Overall, depending on your crop and pest control goals, the proper cooling system can have a profound impact on more than just temperature, as it also presents the opportunity to reduce pesticide use. Additionally, the process of pushing air through the greenhouse via positive pressure has been shown to be more effective in excluding insects than a negative pressure exhaust system, which tends to pull insects into the greenhouse. Depending on your crop, location, cooling, and pest management goals, a positive pressure cooling system may be an appealing investment.

Do you have any experience with this topic? How do you cool your greenhouse? Do you have any recommendations? Please leave your thoughts in the comment section below.


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Agra Tech is rated the best greenhouse manufacturer in the west by commercial greenhouse operators, and number 4 nationally. We manufacture many commercial greenhouse designs for precise environmental control to shade houses and tunnels to protect your crop and extend your growing season.


Women in the Cannabis Industry: Stay Strong

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Candice Voltin tells us about her experiences as a woman in the cannabis industry, with a reminder to other women: You are not alone.

The following is an article produced by a contributing author. Growers Network does not endorse nor evaluate the claims of our contributors, nor do they influence our editorial process. We thank our contributors for their time and effort so we can continue our exclusive Growers Spotlight service.


Staying Strong


Let me give you a little context as to how I got into the cannabis industry. I suffer from a condition that leaves me in ceaseless pain. As a mom of three, I couldn’t afford to zombify myself with all the opioids and other drugs out there. I needed medicine that would allow me to not only function, but have the energy to care for my children. So after learning my diagnosis, I sought out alternatives. That’s how I found cannabis. Cannabis has not only saved my life, but also my children’s lives. As much as I’m sure some of you wished your parents were catatonic when they caught you sneaking off somewhere, in the end, kids need their parents.

Because of what cannabis has done for me, I’ve worked hard to help others understand the amazing potential of this plant. As a woman, I hope to inspire other women to see our industry not as an old-boys club, but as an opportunity to make things better for others in need. Women can throw down just as hard as men can, and we can take the good with the bad. As long as you’re prepared for the bumps in the road, nothing can stop you.

I’m part of a small grow, so I tend to do a lot of different things. That includes sales, transportation and delivery, trimming, and cloning. I’ve even spent innumerable hours putting stickers on packages. I wish I could say that women aren’t treated differently from men, but the sad truth is that we are not shown the same respect, especially when we are growers. Men have frequently second-guessed my decisions or told me that I have no clue what I’m doing. I’ve heard them talk amongst each other (and even to my face), questioning why a pretty girl couldn’t be doing something better with her time.

And that’s just the tip of the iceberg. Men have spoken extremely inappropriately to me or just completely ignored me as though I was a nuisance. When I tried to enter the industry as a budtender, I felt pressured by managers and colleagues to live up to the stereotype of a typical stoner woman, even if I knew more than my fellow employees.

Not everybody is stuck in this mindset though, and we’re not alone. Some men have been extremely supportive in my endeavors, and there are many women in this industry who have a passion to help others. From the owner and founder of Mountain Medicine Jaime Lewis, to the founders of Women Grow, and the founders of The High Ends, you can find women making waves everywhere. These women have stepped up to make the cannabis industry a safe and educational environment for women of all colors. When you are in a predominantly male-dominated industry there is always going to be the good and the bad. You just have to find the people that make you feel confident enough to enjoy what makes you happy.

I’ve learned some very valuable lessons from my time in the cannabis industry. Some were learned from the school of hard knocks, but others inspired me by showing me some amazing things. Even if some people view your presence in the cannabis industry as a nuisance or a distraction, remember that there are just as many people out there that are happy to support your dreams. If you have a passion for medicine, and a passion for caring about other people, that’s all that matters.


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Resources:

Want to get in touch with Candice? She can be reached via the following methods:

  1. Email: voltin66@gmail.com

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About the Author

Born in Seattle, lives in Eastern Washington. Mother of three 9 year olds. Animal lover, cannabis activist, grower and proud medical cannabis card holder.