UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

SKIP navigation

 

How to Manage Pests

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

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

Pea aphid (Acrythosiphon pisum)

Pink-colored pea aphid and nymph.
Click on photo to enlarge

A pink-colored biotype of the pea aphid occurs in France, on the east coast and in several western states of the U.S. including California. It is infrequently encountered in the field. Biologically, it behaves identically to the green form found in California, including its response to resistant cultivars.

Find out more about pea aphid on

 


Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright 2017 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   Contact webmaster.