Coralbelle, I sure hope you had a wonderful time with the girl scouts.* I used to love chaperoning the kids on school field trips and taking my kids and a bunch of their' friends camping.* Lots of work but so rewarding.
Glad you now know what is causing the damage.* Since bees are such good pollinators I leave them alone.* I'm sure you do too.* The lilac can afford the leaf damage and recover.* It sounds lovely too.
Glad I could help.* :)
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.