The first signs of a spotted lanternfly infestation are often subtle. You may notice a sticky residue on outdoor furniture, vehicles, or plants, followed by dark patches of mold on leaves and branches. This happens because the insects feed on plant sap and leave behind honeydew, a sugary substance that promotes sooty mold growth. Catching the problem early gives homeowners the best chance to protect their trees and gardens.

Identifying the insect at each stage of its life cycle is important. Young nymphs are black with white spots, while older nymphs develop bright red coloring. Adults are about an inch long with gray wings covered in black spots, revealing bright red hindwings when they fly. These insects feed on trees, vines, and ornamental plants, weakening them over time. Heavy infestations can reduce fruit production, stress plants, and attract other pests through the honeydew they leave behind.

One of the most effective control methods is regular inspection of trees, fences, and outdoor equipment. During fall and winter, look for egg masses that resemble patches of dried mud. Experts recommend “Carefully scraping these egg masses into a sealed container with rubbing alcohol or hand sanitizer” to stop them from hatching. If using sticky bands on tree trunks, cover them with protective mesh to prevent birds and other wildlife from becoming trapped.

Homeowners should also watch for the invasive Tree of Heaven, a favorite host plant for spotted lanternflies, and seek local guidance before removing it. Since these insects often spread by laying eggs on vehicles, trailers, firewood, and outdoor furniture, checking these items before traveling can help prevent them from reaching new areas.

Although spotted lanternflies can damage landscapes, early detection and regular monitoring can greatly reduce their impact. By removing egg masses, inspecting outdoor spaces, and following local agricultural recommendations, homeowners can help protect gardens, farms, and natural habitats from this invasive pest.