Here's a picture of one of my basil plants:
They are indoors. They were doing great and then the leaves started curling and get paler, skinnier, fall off. There are tiny gummy clear spots on some of the leaves. I've seen tiny crawling insects on the leaves (I think whitefly larvae) but I haven't seen any lately. All the leaves curl on the plant. Some of the leaves also look like they've been pinched (see photo). They become deformed. I see those same gummy spots on my avocado plant leaves except the leaves don't curl. My thyme plants have the same issue as the basil and they got attacked by this when they just started sprouting out of the dirt. Any ideas?