Interesting thing with azatrol is I had a bad outbreak of thrips and have been using sinosad in soil and spray. Soil drench worked well but they keep coming back. using just one treatment of azatrol has knocked them back so far. Will be doing a first dose on ones in veg and will know in a few days if it works because they return every 3 days. Just read a bunch of info on systemic insecticides and this one seems light conpared to others. Imidacloprid is another one that only lasts 30 days and will be the last product tried or they will be destroyed. Don't want to use anything stronger but this article made the most usable information concerning leaf based feeder type of thrip WFT I think that is killing the ladies. It specifically reports on leaf sucking species of thrips and what products were effective.
http://www.greenhousegrower.com/article/34616/control-of-thrips-with-systemic-insecticides
"WFT feeding on leaves (both nymphs and adults) tend to be more susceptible to systemic insecticides than when feeding in flowers. Leaf-feeding more easily results in the insects imbibing toxic concentrations of the active ingredient of systemic insecticides. For example, it has been reported that WFT feeding on plant leaves are "suppressed" by thiamethoxam (Flagship) when applied to the soil/growing medium. The water solubility of thiamethoxam is 4.1 g/L or 4100 ppm. However, it is possible that the metabolite — clothianidin — is actually responsible for killing the thrips. Although the water solubility of clothianidin is 0.32 g/L or 327 ppm, the material translocates throughout the entire leaf, potentially exposing thrips to lethal concentrations of the active ingredient"
What I am interested in most is safety and persistance of traces of insecticide residues. Don't want it to last in the plant for a long time.
If anyone has used these to battle thrips or other pests please post your results or if you know these products to be safe.
