🌿 Tree Insect Information

A highly destructive beetle that has devastated ash trees across North America. Adult beetles leave D-shaped exit holes; larvae create S-shaped galleries under bark. Early detection and systemic insecticide treatments can save trees if caught in time.

These ants strip leaves from trees to grow fungus colonies underground. Large mounds with radiating foraging trails are telltale signs. Damage can defoliate trees in days. Professional baiting programs are most effective for control.

Small, soft-bodied insects that cluster on new growth, sucking sap and excreting sticky honeydew that promotes sooty mold growth. Usually managed with insecticidal soap or by encouraging natural predators like ladybugs. Severe infestations may require professional treatment.

Tiny insects that attach to bark and branches, covered by a protective shell. They weaken trees by sucking sap. Signs include yellowing leaves, dieback, and sticky residue. Horticultural oil applications are effective when timed correctly.

Caterpillars that construct protective bags from plant material, hanging from tree branches. They defoliate trees if populations are large. Hand removal of bags in fall/winter or insecticide applications in early spring are both effective approaches.