What's eating my heucherella brass lantern?

Heucherella 'Brass Lantern' is most vulnerable to black vine weevil: grubs destroy the root system before any above-ground symptoms appear. Adults notch leaf edges at night. Foliar nematodes exploit wet foliage, and aphids occasionally gather on tender new growth.

Adults create irregular notches on leaf margins; grubs consume roots, causing plants to wilt and die seemingly without cause Apply beneficial nematodes (Steinernema kraussei) to moist soil in late summer; hand-pick nocturnal adults; use systemic insecticide as a last resort

Water-soaked angular lesions between veins that turn dark brown; spread by rain splash and overhead irrigation Remove infested leaves; water at the base; space plants to improve airflow; avoid working among wet plants

Colonies on new shoots cause leaf curl, stunted growth, and sticky honeydew that may lead to sooty mold Spray with insecticidal soap or diluted neem oil; use a strong water jet to dislodge; attract ladybugs and parasitic wasps