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Linda from Camas, Wa writes

Are Nyguard and Bifen IT safe for house plants?

If so how should I apply for fungus gnats


Bifen IT is safe on house plants on the foliage.  Nyguard is not labeled for this use.  For fungus gnats you would be using as a soil drench to treat.  The other option is to allow the soil to dry out completely as this will kill any larvae in the soil.

Answer last updated on: 06/07/2019

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