Here it is, late July and I had a woman call me about bagworms. I'm kinda new to the pesticide application stuff so I was wondering what kind of spray should I use. She told me that they have attacked her leylands and they are about 16' tall. Also the worms are in the cocoon stage. Any help would be great. usually if the plant isn't tall I just pick them off but at 16' I don't think so.