I had replanted my Elefantenfußbaum and unfortunately I had in the potting soil this fungus gnats. At first, I could not place where but these critters came after the weekly Giesvorgang, I have seen at once as they came out of the earth and of my elephant! First, I have to describe it with these yellow tried with success, although the mosquitoes were off but the problem has not improved so then I discovered this powder from Amazon and after the second time Giesen, was quiet with the little critters! What did not make this yellow Lockschilder, has done this powder. I can recommend it unreservedly and would buy it again if I once again such an infestation of my plants.