Does any one have any information on thrip control.  I am working with a 
farmer who is raising lettuce and basil in an integrated recycle 
aquaculture-hydroponic system.  He has developed a thrip problem 
despite putting micro-screen on his air intakes.  He is limited in his 
thrip control options as anything sprayed on the plants will get back to 
the fish.

Marten Jenkins
The Freshwater Institute