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How to Manage Pests

Identification: Key to Aphids Commonly Found in Small Grains, Corn, and Sorghum in California

From "supracaudal process is absent"

Click on the illustration or description that best describes the winged aphid.

Illustration of knobbed cauda and 5-segmented antennae   Illustration of rounded cauda and 6-segmented antennae
Cauda is knobbed. Each antenna has five segments.   Cauda is elongate or rounded. Each antenna has six segments.
Where are the cauda and antennae?

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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