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Two Fungicides Approved for Use on Canadian Produced Medical Marijuana

By March 11, 2014Uncategorized

A common misconception in Canada’s cannabis cultivation community is that no fungicides are allowed for use on commercially produced indoor marijuana. However, there are two allowable fungicides registered with Health Canada’s Pest Management Regulatory Agency: Milstop Foliar Fungicide and Actinovate SP.

MilStop Foliar Fungicide is a contact fungicide that controls/ suppresses Powdery Mildew on vegetable crops, ornamental crops, and Cannabis (marihuana) that is produced commercially indoors, suppresses Powdery Mildew on outdoor bedding plants, field cucurbits and stone fruits, and controls Powdery Mildew on field peppers, hops, grapes (conventional and organic), , and herbs and spices. MilStop Foliar Fungicide is applied using a sufficient volume of water to insure complete coverage of all stems, foliage and fruit.

Actinovate SP is a biological fungicide for the suppression of Botrytis fruit rot and powdery mildew on field and greenhouse grown strawberry, powdery mildew on field and greenhouse grown peppers, powdery mildew in field and greenhouse grown Gerber daisy, powdery mildew on field and greenhouse cucurbit vegetables (crop group 9), powdery mildew on field and greenhouse tomato, powdery mildew on grape (Uncinula necator(Erysiphe)), powdery mildew (Sphaerotheca macularis) and Botrytis cinerea on cannabis (marihuana) produced commercially indoors, seed rot/pre-emergence damping-off, post-emergence damping-off and root rot caused by Pythium spp. on greenhouse cucumbers, greenhouse lettuce and greenhouse fruiting vegetables and partial suppression of mummyberry (Monilinia vaccinii- corymbosi) on high and lowbush blueberry. Actinovate SP may also reduce symptoms of anthracnose fruit rot on strawberry. Actinovate SP also offers suppression of the following diseases on the listed greenhouse grown ornamentals: Fusarium wilt on cyclamen, Pythium root rot on petunia, Rhizoctonia root and crown rot on geranium and powdery mildew on verbena.

Each fungicide has specific directions for use which should be followed with care. Directions include dilution, application timing, storage and disposal, in addition to first aid precautions.

It’s important to note that all products designed to manage, destroy, attract or repel pests that are used, sold or imported into Canada are registered and regulated by the PMRA. These include chemicals, devices, and even organisms, and are referred to collectively as pest control products, or simply ‘pesticides.’ The term ‘pesticides’ refers to a multitude of pest control methods that include herbicides for weed control, fungicides for the control of plant diseases, insecticides and repellents to control insects, rodenticides to control rodents, electronic devices to control insects or rodents, sanitation products to control bacteria and viruses in pools and spas, special preservatives for wood, structural materials and other products, biochemicals and non-conventional products.

A number of pesticides are registered in the US for use on medical marijuana, but as these pesticides are not registered with the PMRA, they cannot be sold, used, manufactured or imported in Canada. However, US registrants of these pesticides are encouraged to seek registration in Canada with Health Canada’s PMRA.

Staff at the PMRA are responsible for administering the Pest Control Products Act (PCPA) on behalf of the Minister of Health. Registration under the PCPA requires a thorough scientific evaluation to determine that new pesticides are acceptable for a specific use and that registered pesticides remain acceptable for use once on the market. If Canadians choose to use pesticides, they can only use a pesticide registered by the federal government for the pests and treatment areas listed on the label, and use them according to the label directions.

Unfortunately, provincial and municipal governments can restrict the sale and use of registered pesticide. Anyone looking to employ these pesticides into their cultivation should contact the provincial ministry of the environment and their municipal government to see if such restrictions are in place.


About Michael Mayes

As Chief Executive Officer for Quantum 9, Inc., Michael has assisted in funding some of the largest commercial cannabis projects in the world. Michael has been a cannabis investor since 2009 in Colorado’s first legal for-profit cannabis market. As the co-founder and CEO of Quantum 9, Inc., Michael has spent years designing technology and collaborating with countless consultants on the forefront of the cannabis industry. Collaborating with the brightest minds and contributing to world-class organizations has been an incredibly enlightening and rewarding experience for him. Also, he has amassed a comprehensive and award-winning team engaged globally for public policy best practices through the prioritization of environmental sustainability and patient care. Michael is a member of the International Cannabinoid Research Society (ICRS), contributor to Marijuana Business Daily, quoted in the Chicago Tribune, Tampa Tribune, Yahoo Finance, Tampa Tribune, Sativa Magazine, CBC and the Daily Herald. His media appearances include several CBS and WGN appearances and international presence on BNN Commodities in Canada. On the public policy front, Michael and his team were instrumental in their work of drafting the Kentucky Medical Marijuana Bill for Senator Perry Clark. Most recently, Michael taught a class for the International Pharmaceutical Academy in Toronto, Canada. He spoke on Cannabis Pharmacology, and the effects cannabis has on the endocannabinoid system.

One Comment

  • Shorty Hofmann says:

    Whoever wrote this story is not doing their research. both chemical are fungicides not pesticides. Big difference.

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