In my experience, air movement solves a lot of the insect problems. I also have plenty of those bright yellow, sticky cards hanging throughout my GH's. I am going to add some carnivorous plants this spring, putting 2-4 in each GH. I just want to see IF I can grow them. I think I remember having ONE about 40 years ago, and its time to try my hand growing them again.
I also fog my GH's in the fall. There are numerous foggers out there. You can go with those that are more specific for GH use like Attain TR, Precore, or Pylon TR, or just use one made for home use, and sold at the Big Box stores, like Black Flag, Hot Shot, or Bengal. I think fogging the GH's when I bring in all my plants in the fall does some good.
