Expert Problem Solver

Gall Aphids

Gall Aphids
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These galls are produced by insects called Cooley spruce gall adelgids (woolly aphids). Galls appear early in the season are about 2 to 4 inches in size. The galls are light green during late spring and early summer but dry out and become brown starting sometime in July. The galls often are mistaken for cones.