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Pest Control Methods for Commercial Marijuana Operations

1/8/2016

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Commercial Marijuana Pest Management
Industry Standards for Pest Control
Marijuana Venture Magazine - September 2015



 
Anyone who has been cultivating for more than a year or two has experienced the challenges associated with pest control, and they are both unpleasant and unavoidable, especially in a large-scale setting. The standard list of cannabis predators includes powdery mildew, aphids, mites, gnats, white flies, and thrips, with powdery mildew and mites being the most difficult to permanently eradicate. Even though mildew isn’t an insect, it still falls under the rubric of “pest control” because it’s a living organism that attacks and destroys cannabis.
Pests enter a grow room in one of three ways- through openings in the building, on the skin, hair and clothing of workers and visitors, and on plants brought in from other locations. In this sense, taking steps to prevent these various kinds of breaches is the first and most important part of maintaining a pest-free environment.
Standard prevention techniques include the following:


  • Installing fans that blow air outward when doors or windows are opened. This deters flying and crawling insects from taking advantage of an easy opportunity to enter the inside of the building.
  • Sealing all cracks and filtering air intake. Using a MERV or HEPA filter for air intake will keep out flying insects and also helps prevent mildew spores from making their way to the plants.
  • Separating entry areas from cultivation areas so that all workers and visitors must go through a series of steps to gain access to the plants. This can include locker rooms where visitors take showers, change clothes, place the soles of their shoes in bleach solutions, and/or pass through “air showers” that blow all loose debris off and away from the cultivation space.
  • Keeping floors and surfaces extra clean. Molds, mildews, and bugs are naturally attracted to filth. The cleaner the grow space, the less susceptible it will be to all kinds of infections.
  • Placing a tightly controlled quarantine protocol on clones brought from other locations.
  • A good quarantine system requires a small cultivation space that’s separate from all other grow areas, where powerful full-spectrum lighting and 10-80x magnifiers should be available for detail-oriented employees to examine the plants on a daily basis for about 14-21 days before the clones are deemed suitable for integration into the larger cultivation space.

With the right prevention steps being taken, the frequency of infestations will dramatically drop, but will probably still happen from time to time. This is why cultivation sites must be prepared for pest treatment by utilizing the right kinds of equipment and supplies once preventative measures have failed.

If you’ve seen many indoor commercial cultivation spaces, you will have noticed the modular build-out design that has become standard. Grow sites are subdivided into individual rooms that range in size from 200 to 2000 sq. ft. Besides allowing for more targeted and efficient environmental controls, these subdivisions make pest problems more containable and treatable when they happen. Once a problem has been identified, the room is shut off from the rest of the site while a special crew addresses the problem, and this increases the chances that the problem can be controlled quickly without spreading to other areas.

In most cases, infestations are treated with sprays of some kind, and going into the details of all the various sprays and insect types is a much larger discussion than can be covered in this article. What’s most important is that the spray is applied properly, and that means using atomizers, also sometimes referred to as foggers. Atomizers reduce the micron size of liquid particles to the point where the room is literally being humidified rather than just merely sprayed. This ensures absolute coverage of all the plant surfaces. Complete coverage is further augmented by the use of a surfactant in the spray mixture that keeps water particles from beading up, much the way detergent works in a clothes washing machine.

Many growers will claim that certain sprays have failed at handling a pest problem when, in fact, the application method has been the problem. With an atomizer and a surfactant, variables are eliminated from the equation, such that the substances being used for treatment can be assessed for what they are.

Some sprays act on contact with the plants, whereas others take some time to have an effect. Those that act on contact are often best washed off quickly after being applied in order to minimize potential damage to the tissue of the plants, that many sprays are known to cause. Additionally, floors and work surfaces should be washed shortly after the treatment application in order to minimize worker exposure to harmful residues, which is often the riskiest aspect of pest control for commercial grow operations. Workers should wear protective outerwear and gloves both during and after the treatment process to minimize contact with any sprays that could have health consequences when used in concentrated quantities.

No grower can live a life without pests, but taking comprehensive steps towards prevention and using reliable treatment systems can certainly minimize the pain and suffering that comes along with the territory. 


 


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    Author

    Jennifer is a monthly columnist for Marijuana Venture and SF Evergreen Magazines and owns/operates the product review website and blog WeedGear.com. She writes on beginner and advanced cannabis cultivation topics, entrepreneurship, trends & technologies, and DIY cannabis crafts. Here are some recent articles. 

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  • Extraction
  • Operating Plans
    • Risk Management Plan
    • Cultivation Operating Plan
    • Manufacturing Plan
    • Security Plan
    • Environmental Plan
    • Staffing and Training Plan
    • Odor Control Plan
    • Inventory Control Plan
    • Pesticide Control IPM Plan
    • Record Keeping Plan
    • Quality Assurance Plan
    • Complaints & Recall Plan
    • Distribution Transportation Plan
    • Transportation Only Plan
    • Waste Management Plan
    • Remediation Plan
    • Employee Handbook
    • Health & Safety Plan
    • Business Plan Template
  • Facility Design
    • Recent Projects
    • LED Growing
    • Cannabis Cultivation HVAC Intro
    • Choosing the Best Marijuana Grow Equipment
    • Cannabis Security Facility Basics
    • Marijuana Waste Management
    • Electrical Management for Indoor Marijuana Cultivation Sites
    • Marijuana Water Usage and Disposal
    • Staffing Marijuana Businesses
    • Budget for Cultivation Facility
    • Pest Management for Indoor Marijuana Growing
  • About
    • Testimonials
    • Contact
    • Published Articles
    • Blog
  • Tissue Culture & Cloning
  • Custom Nutrients
    • Cannabis Leaf Tissue Testing and Analysis
    • Marijuana Nutrient Management
    • Difference Between Coco Coir and Rockwool Fertilizers
  • All Services
  • Illinois Docs
    • Illinois Package Deal
    • Craft Grower Cultivation Plan
    • Facility Suitability Plan
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    • Environmental Plan
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