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Yvette from El Paso, Tx writes

Second opinion on use of Hi-Yield 55% Malathion Insecticide Spray

This insecticide was referred to me for gnats for my indoor house plants but now I'm seeing a lot of comments that's it's not safe for indoors?? My plan was to spray the plants outside then take the plants back in. So if it is not safe to do that, What would work best for those flying pests that are in the soil?


Hi-Yield 55% Malathion Insecticide Spray is not labeled for indoor plant use so we would not recommend using it.  Instead we would recommend something like Talstar P, taking the plants outside to spray then once dry returning them inside.  Talstar can be used as a soil drench to kill any larvae in the soil as well as a foliar spray.

Answer last updated on: 08/07/2018

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