lee asked:
I have a greenhouse full of orchids(primary cattleyas) and cant get rid of the thrips.I am drinchiing the floor and plants with liquid sevan
(insecticide) and have even been putting sugar in it.I am running it through a dosatron injector for the drench.The walkways are concrete but I have been drenching under the benches where it is ground covered with gravel.I have a pesticide license but I dont want to keep guessing on what to try next,what i am doing is not working-any advice is appreciated,Lee
Sharonda
