Tree Insects

Use this resource to identify common tree pests. Early detection is key for your tree's health. Our ISA Certified Arborists can help identify issues and recommend solutions to protect your trees.
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Bronze Birch Borer

A wood-boring beetle that targets stressed birch trees by damaging vascular tissue under the bark. Infestations often lead to crown dieback and can result in tree death within a few years if untreated.

Emerald Ash Borer

An invasive insect that attacks and kills all true ash trees by feeding beneath the bark, disrupting the tree’s ability to transport water and nutrients. Ongoing preventative treatment is essential for sustaining ash tree health.

IPS Beetle

A bark beetle that typically attacks stressed or declining pine and spruce trees, causing needle discoloration, rapid decline, and eventual tree death if unmanaged.

Japanese Beetle

An invasive pest that feeds on a wide variety of trees and plants, skeletonizing leaves and causing severe defoliation during peak populations. Feeding activity can attract more beetles, intensifying damage.

Spongy Moth

A destructive defoliator that feeds on the leaves of many tree species, especially oaks. Repeated heavy feeding weakens trees and increases vulnerability to drought, disease, and other pests.

Zimmerman Pine Moth

A pest that bores into branches and trunks of pines, weakening wood structure and creating resin-filled pitch masses. Infestations can lead to reduced health and breakage during storms and snow events.