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Wally from Vancouver, Wa writes

Can the Southern Ag Natural Pyrethrin Concentrate be applied to marijuana plants for spiders?


Southern Ag Natural Pyrethrin Concentrate, like most insecticides, are not specifically tested or labeled to be used on marijuana plants. Although, no insecticide on the market is labeled for marijuana, some customers have found success using the Evergreen Pyrethrum Concentrate (OMRI Certified) for mites and a wide variety of insects. Be sure to check the product label for specific use instructions and do not apply to marijuana plants while they are flowering.

Answer last updated on: 07/29/2015

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