
Lycorma delicatula
Invasive planthopper spreading across Mid-Atlantic. Damages grapevines, fruit trees, and hardwoods.
Tree of Heaven (preferred), maples, black walnut, grapevines. Northern VA, DC, and MD Panhandle heavily infested. Hitchhikes on vehicles and goods.
Eggs overwinter. Nymphs hatch May. Adults appear July–November. Egg-laying September–December.
No human health risk. Damages crops and ornamentals. Honeydew secretion promotes sooty mold growth. Swarms can be overwhelming nuisance. Economic threat to vineyards and orchards.
Quarantine zones in place. Tree trunk banding in summer. Systemic insecticide for high-value trees. Homeowner can kill on sight. State programs provide resources.