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Hdinkleman
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im not using chemicals. whats the benefit of sprinkling DE on leaves for fungus gnats?Go get some diatomaceous earth and dust the effected leaves with a sifter or something. Won't harm the plants and will kill the bugs without chemicals
ok so does that leaf look like fungus gnat larvae damage though?Get nematodes and it will eliminate the fungus knot issue . Most grow stores have them
im not using chemicals. whats the benefit of sprinkling DE on leaves for fungus gnats?
ok so does that leaf look like fungus gnat larvae damage though?
already got it and am using it!Diatomaceous earth kills insects and larvae. Not sure how well it works for fungus gnats, but it's super cheap and couldn't hurt to try. I always keep a big container on hand. Works for de-worming your dog/cat, too, if it's food grade, you just put a little in their food and it will get rid of them. Safe for mammals. Deadly for insects. I like to sprinkle some on the soil of each plant at the time of potting and once a month, just for good measure.
This is one of the ways I fight spider mites, as well.
Insects can cause plant and leaf destruction, but I don't know that fungus gnats are one of them. I'm not too familiar with them but I think they are more of a cosmetic issue. White Flies, not sure of their proper name, can live on the undersides of the leaves and suck the juices out of the plant. The damage is more apparent during flowering as they cause sugars to leak out of the damaged sites. When you burn sugar, you get carbon. The result on buds is a poorly burning product that leaves a lot of black ash. If Fungus Gnats are the one's I'm thinking of, they don't really cause any problems other than being a pain in the ass.
If I'm way off base here, someone...please correct me.
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