What Do You Spray On Webworms? The safest and most effective method of what to do about webworms is as follows: Prune the tree in the spring and spray with a lime-sulfur and dormant oil spray. As buds begin to break, follow up your webworm treatment by spraying Sevin or Malathion and repeat in 10
Are Tent Worms Caterpillars? The forest tent caterpillar, Malacosoma disstria, occurs throughout most of the United States and Canada wherever hardwood trees are found. It periodically infests aspen and many other tree species over large areas of northern Minnesota. The caterpillars are commonly, but mistakenly, called ‘armyworms’. Are tent caterpillars silk worms? Silkworm is the