The two domes are 2-liter soda bottles with a lot of air vents in the sides. There are deer that feed and bed down just a few yards away in the field where I have these, so I’m going to try and keep them protected as long as I can.
I don’t have to worry about heat with these, because (a) the vents, but more importantly, (b) they’re planted directly in the ground. The roots in outdoor plants have more protection from the heat, because the Earth keeps the soil cool just a few inches down, unlike in a grow tent, where the soil is just as hot as the bucket, which is just as hot as the air in the room. I’m not sure what would happen in a bucket that’s outside, that’s why on the one I have outside in a bucket, I have a bigger top that’s not so enclosed.
You might try Diamataceous Earth, it’s completely safe for the plants and pets, and if you get “food grade” (which I recommend), humans can even eat it! But it kills most crawling insects like spider mites and caterpillars. Just sprinkle it all around the ground by your plant. I even saw where one guy got some kind of “duster” applicator that he used to dust it on the leaves to kill mites. Neem oil is supposed to be a safe and effective insecticide as well.
I’m starting my 5-day old seedling on some early LST too!
My first LST Widow has a really strong stalk where she was bent at the base, and has several new nodes popping up at the 1st bend back. I’m very excited about how this is starting to shape up, I’m hoping to circle it all the way around the bucket by the time it starts to bloom!