Benzelsanswered grow question 2 years ago I use Pyrethrum spray. Turn off ya fans, spray the the top of the soil lightly but ALL over, and repeat in 2 or 3 days. Do this 2 or 3 times and bugs are basically gone for a while from a week to 4 weeks. I often treat in veg and dont see em again til late flower if at all. Plus its cheap, cost me a bottle. That and the yellow sticky traps you hang up. Thats ya two best options.