hey Green , sorry to hear about the pest problem ! You need to go "all out" to get them ! but the problem in flowering is you can really use pesticides etc. So you need to combine techniques to kill them. First thing is to understand that they lay eggs in the soil, then they attack the leaves and fly around. So you want to kill the eggs and catch the adults. To kill the eggs you can use the biological method for example by using "beauveria bassiana" and "metarrhizium" which will contaminate the eggs and larvea and sterilise them. Or use the much quicker method of hydrochloric acid 3% diluted at 1/3 strength, which is a common flushing agent for example "cannaflush" (or others) contains this acids. It will "burn" the eggs and hopefully kill them. then you can buy horticulture sand and add a thick layer of sand to the soil so the thrips cant really lay their eggs easily, and the eggs inside the soil cant really come up from the soil easily. And finally you need to get sticky strips, like a lot of sticky strips and go crazy, and put them everywhere : on the soil , low down on the pots, and at various heights in the grow room, really hang them everywhere you can, hopefully you can catch all the adults and catch the young adults before they really lay eggs. With these techniques hopefully you see improvements very quickly and hopefully withing 2 weeks you will have the outbreak under control again. Hope this helps ! ๐