UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

SKIP navigation

 
  Printer-friendly version

How to Manage Pests

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

Start key

From "dorsal abdomen is without spots"

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

view of converging antennal tubercles   view of cdiverging antennal tubercles
Antennal tubercles are converging   Antennal tubercles are diverging
Where are the antennal tubercles?

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2003 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. /TOOLS/KEYAPHID/3tubercle.html revised: December 17, 2003. Contact webmaster.