I have a agricultural pest that I cannot identify or get rid of. It is a...
I have a agricultural pest that I cannot identify or get rid of. It is a small blackish soft bodied insect. They are living in the coir of my aquaponics system and the young smaller ones are damaging patches on the underside of my lettuce leaves. This causes the leaves to become spotted black, shrivel and die. I have tried Bt and a sugar based pesticide to no avail. I have more pictures available.
Thank you for your question for eXtension. The topic area in which you've made a request is not yet fully staffed by eXtension experts and therefore we cannot provide you with a timely answer. Instead, if you live in the United States, please consider contacting the Cooperative Extension office closest to you. Simply go to http://www.extension.org, drop in your zip code and choose the office that is most convenient for you. We apologize that we can't help you right now, but please come back to eXtension to check in as we grow and add experts.
I am not sure what that particular insect is, however, in terms of biological control we have had some success with parasitic wasps. They can be purchased and sprinkled onto the plants that need help. You may want to contact Nathan Brockman, staff entomologist at Reiman Gardens. http://info.iastate.edu/individuals/info/194565/Brockman-Nathan