Bagworms

Apropos of nothing else, the bagworms are crazy this year. I have a juniper tree about six feet tall in the front yard that had at least a thousand of them. I tried spraying them, to no avail. Now, I'm picking them off by hand, one by one. I've pulled off more than 600 over the past three days, and it looks like I'm at about the halfway point. I hope I got to them in time to save the tree.