1) For the Flies: Before each of my grows I always line the walls, and the bottom of the show with fly paper.
Most adult thrips are slender, minute (less than 1/20 inch long), and have long fringes on the margins of both pairs of their long, narrow wings. Immatures (called larvae or nymphs) are similarly shaped with a long, narrow abdomen but lack wings.
Definition from:
http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7429.html
2) Make sure they are thrips - they are a fucking bitch. On our onion farm it's nearly impossible to get rid of them, and you have to pretty much deal with them. If they aren't thrips you have other options. My only suggestion is to do some research see if there are any companies that provide predatory insects to combat thrips (I'm not sure if lady bugs eat them) - But there are some form of thrips that actually eat other thrips according to the about website.
However - my suspicion (if they are truly thrips) - is that like on our farm - your crop is fuggged. Just ride it out, hope for the best, and do everything you can without spraying pesticides on your buds this late in flowering... This late in the game - you don't want the taste, chemicals, or possible mold problems developing from spraying or bombing.
Hope this helps... Happy gardening.
