What are Spruce Galls?
Gall Adelgids cause wood galls to form on spruce tree branches. The galls, which change from green in early summer to brown in late summer, are pineapple-shaped and resemble cones. Keeping Gall Adelgids in Check • Water plants weekly when rainfall is less than one inch. Plants with an adequate moisture supply are naturally more resistant to insect and disease problems. • Fertilize adequately to promote healthy plants. Scale Insects What Are Scale Insects? The first signs of a scale problem are leaf yellowing, branch die back and general decline of the plant. Although very small, scale insects are usually present in large numbers. They form what looks like a crust on branches, twigs, and leaves. Scale insects extract sap and nutrients from the plant, weakening it and making it more susceptible to winter damage and drought stress. Scale Insect Control Scale control begins with a horticultural oil spray in the fall, winter or spring for protection against over-wintering adults. Treatment
