Evergreen White Bug: A Threat to Trees

Did you know your favorite trees could be losing their needles due to an evergreen white bug infestation? Despite the name, these pests are actually moth larvae, and if left unchecked, they can seriously damage or even kill trees.

What Are Evergreen White Bugs?

These larvae feed on both evergreen and deciduous trees. They build protective bags from leaves and twigs that hang from branches, hiding them as they grow.

Life Cycle

Understanding their life cycle helps in controlling them. Adult female moths lay eggs in these bags. In late spring or early summer, the eggs hatch into larvae, which then build and expand their bags as they feed. By late summer or fall, they pupate inside the bags and emerge as moths. Females stay on the tree, while males fly off to mate.

How They Harm Trees

Larvae feed on leaves or needles, causing them to fall off. This loss limits the tree’s ability to produce food through photosynthesis, weakening it and increasing its vulnerability to diseases and other pests. Severe infestations can kill trees.

Control and Prevention

• Inspect Regularly: Remove bags before larvae hatch.

• Encourage Biodiversity: Plant a variety of trees to reduce spread.

• Keep Trees Healthy: Proper watering, pruning, and fertilizing make trees more resistant to pests.

By staying alert and taking early action, you can prevent damage and keep your trees thriving and beautiful.