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How to Manage Pests

Key to Aphids Most Commonly Found in San Joaquin Valley Alfalfa and Cotton

| Start key | Management guidelines: Alfalfa | Cotton |

Based on the key characteristics, the aphid is likely to be

Green peach aphid (Myzus persicae)

Green peach aphid adult and nymphs.
Adult green peach aphid.
Click on a photo to enlarge

Find out more about green peach aphid on

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