You are here.
Gypsy Moth
Limited numbers of valuable trees can be protected from severe defoliation by wrapping the trunks with a burlap apron in early June. Mid- to late-instar gypsy moth larvae crawl down the tree each morning and seek shelter under the apron. They must be disposed of each day. This procedure requires daily attention for about 3 weeks, or until male moths begin to fly.
Trees can also be protected with insecticide sprays. Insecticides are most effective if applied while caterpillars are still young (early to mid-May) but are no longer ballooning to other areas.
Formulations of the following materials are labeled to control gypsy moth larvae. Prior to applying any product, refer to individual labels for host-plant clearance information.
Note: Apply all of the above formulations according to label directions. Always refer to individual labels for host-plant clearance information.