Anyone one who has native Scrub Oak and Maple trees in their yard are familiar with these caterpillars. They come, they eat, and dangle from the trees from a silk thread. When there is a large infestation of them, they can denude the trees overnight!
When Moore Green sprays for these damaging pests we choose products that will not affect birds, since birds love to dine on the caterpillars. We also choose to use products that will act quickly to prevent continued feeding. We add to our mix a ‘sticking agent’ that will hold the product to the leaves so if your neighbors don’t spray their trees, their cankerworms can’t move over to yours. Only one spray is necessary!