White Pine Needle Scale

White pine needle scale is found in Manitoba on spruce and mugho pines. These white scale insects suck the juices from the needles. The needles turn yellowish, then brown and drop off. The insects over winter as reddish eggs beneath the white female scale cover. In late May to early June the eggs hatch and emerge through a small hole in the mother scale cover. They appear as red crawlers, having wingless females and flying males.

The control of white pine needle scale is to paint a band of Cygon 2-E [no longer available for home use] on bark of the tree just below the first lateral branch. The thickness of the band should be 1 to 2 inches depending on the diameter of the trunk.

Compiled By: Dr. Bill Paton and Vicki East