Tree Insects

Identifying Pine Needle Scale in Dryden Landscapes

Brad Dunkin, ISA Certified Arborist | Dec 05, 2025

Tags: Plant Health Care, Tree Disease, Tree Insects, Tree Spraying

Supporting image for blog post: Identifying Pine Needle Scale in Dryden Landscapes

Pine needle scale infestation. Photo: Scott Tunnock, USDA Forest Service, Bugwood.org

For Dryden homeowners, identifying pine needle scale (Chionaspis pinifoliae) can help in maintaining healthy landscape pine trees. This tiny, armored insect can be recognized by its distinctive white, tear-drop shape on pine needles, typically measuring about 1/8 inch long.

When inspecting your pine trees, look for a grayish or frosted appearance on the needles, which is caused by the accumulation of these scales. In severe cases, you may notice yellowing needles and premature needle drop. This scale insect is often more concentrated on the inner parts of the tree where humidity is higher.

In the summer you can confirm newly hatched scale insects are on the plant by using the "shake test." Place a white piece of paper under suspected branches and give them a gentle shake. If tiny, reddish-brown crawlers appear on the paper, it's a sign of an active infestation.

It's important to differentiate pine needle scale from other common pine pests. Unlike pine sawflies or needle miners, pine needle scale doesn't cause holes or tunnels in the needles. Instead, it creates a distinctive pattern of white scales along the needle surface.

Regular monitoring is key, especially during spring and early summer when crawlers are active. Pay special attention to Scots and Mugo pines, which are particularly susceptible to pine needle scale in Dryden's climate.

By familiarizing yourself with the appearance and signs of pine needle scale, you can catch infestations early and take appropriate action to protect your pines. Early detection and intervention are crucial for maintaining the health and beauty of pine trees and pine shrubs in your landscape.

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