Those are clever. I'll have to show my DH. We had ants this spring/summer. Crazy ants that swarmed everything, including pots. I've been watching the pots for them.
I've never had a fan in either hoop. When the sun is out and its relatively warm, I just roll the side up on the hoop. We have fairly mild winters, except for a few freezing nights. I haven't had any bugs...so far. I've been doing this for over ten years. I might just be lucky so far also.
