I have a small bush/tree. I don't know exactly what it is. What I see is the new growths folded over onto each other, and connected together. When I pull them apart, I can find tiny white worms with black heads, which are about 5/8 inch long.
The worms have eaten the new growth, severely stunting it.
I tried treating with insecticidal soap to no avail, probably because it can't get to the worms as they are all safe in their tent. I also tried "BT" hoping they were some sort of caterpillar. It appears that has not worked either as I see no affect. The next step I guess is to pull out the tree.