Be on the lookout for bagworms. Starting in mid-May to late June. Spray as soon as you see them then spray again in two weeks. They are much easier to control while they are small and you will prevent much of the damage they can cause. Several products are effective for bagworms Including: Bonide Captain Jacks Dead Bug, Hi-yield 38 plus, Hi-yield indoor outdoor broad use insecticide. Thorough spray coverage is critical for success.