Ok, Im new here but I thought I would throw this in for what its worth, I HATE caterpillars!!! Sarted finding them a month ago. Spayed with "safer caterpillar killer " it worked great but the freekin moths keep coming around. This is an outdoor grow. Anyways, the caterpillars are gone but the moths keep landing on the plants. Ive found that checking every top of bud with microscope is the way to go, I will find a single yellowish egg and get it the hell out of there with my tweezers before it hatchs. It really works, It just takes a little time for aprox 50 tops per plant, But I find its worth the time to do that. The buds are looking nice. I'm posting this little pvc structure I put together and placed it over a couple younger plants that the moths hav'nt gotten to Its the way to go & next grow I'm going to have every plant under some kind of structure like this one.

Just go to any home builders store and pick up some white pvc pipe,couple fittings. The mosquito net at most any sport / camping store.
I just made the PVC to match the size of the netting! its pretty easy to do. Anyway the Two plants are looking untouched and No More Caterpillars!!!!

I hope I'm posting this in the right place? If not , Sorry, I am a big newbie here Hope this helps a few of you.This image has been resized. Click this bar to view the full image. The original image is sized 600x598.