Berkeley, CA(Zone 9a)

I have hoards of aphids on my tomato plants this year. I've blasted with water & sprayed with spinosid . Any help, here?

(Zone 9b)

I have always used Palmolive dish soap in water and used a hand sprayer to spray them directly. It works well.

I found this article that might help.

rhinelander, WI(Zone 4a)

Mosquito bits has BTi , check whether it is ok for food, reportedly it becomes harmless in soil in a very short time, also Neem oil and Neem oil cake has been effective for fungus gnat control

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