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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Beetles, bugs, ants, and other insects without obvious wings - Under 1/4 inch long > Cabbage aphid

Cabbage aphid
Photo Credit: Whitney Cranshaw, CSU, Bugwood.org Cabbage aphid
Photo Credit: Whitney Cranshaw, CSU, Bugwood.org

Cabbage aphid
Brevicoryne brassicae
Size: Up to 1/12 in long

Where/When: Feeds on broccoli, cabbage, Brussels sprout, cauliflower, canola, and other plants in the mustard family (Brassicaceae). Aphids are active from June through October.

Significance: Low to moderate numbers cause little or no injury. Larger numbers can slow growth and distort heads and leaves.
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