I had good luck with "Garden Safe" brand "Fruit and Vegetable Insect Spray". It's less than $10 and comes in a turquoise green spray bottle. I used it every other day on my new grow after the last grow was basically wiped out by the borg. This grow, no trace of them! I sprayed both the plants and the soil and I am reusing my soil (hey, Mama Nature does not toss her soil each grow- why should I?). Of course, I grow in 19 gallon tubs, so it's not like the plants suck up all the nutes in one go. Just went to flowering about 2 weeks ago and all looks well!- Granny:hippy: