Blister beetle adults are 19 mm long and elongated. They vary in color from black and blue to brown, with or without stripes. They possess a characteristic constricted neck. These beetles overwinter as larvae in the soil. Adults feed on flowers and leaves, creating small rounded or irregularly shaped holes.
Adults can be hand-picked, but it is important to wear gloves because these insects release a caustic substance when crushed that can cause blisters and welts on the skin. Contact insecticides may be used to control the adults.
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