Cankerworm - Spring and Fall Cankerworms

Keystone Tree Experts
259 North West Street
Doylestown, PA 18901

Phone: 215-348-4444

Cankerworms have been documented as native North American tree pests since colonial days. Spring and fall cankerworm are similar in distribution, appearance and the damage caused. The fall cankerworm lays its eggs in the late fall and the spring cankerworm in late February or March. Both have a wide range of hosts that include deciduous shade and fruit trees. Apple and Elm seem to be preferred, but many Oaks, Maples, Hickories, Ashes and Beech are also fed upon

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