San Jose scale

These insects are small, grayish disk-shaped specks about 2 mm across with a raised spot in the center. They are most frequently found on the canes. For most of its life, the scale insect is incapable of movement, and merely sits and sucks out the plant juices. Heavily infested plants will have canes encrusted with scales. In such cases, single canes or even entire plants will be killed.

Dormant sprays of lime sulfur or superior oil will control San Jose scale.

Insect pests of elderberries

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