How to Manage Pests

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

Acknowledgments

Key developed by Charles G. Summers, Department of Entomology, UC Davis and Kearney Agricultural Center, Parlier

Reference

Summers, C. G. 2001. Key to common alfalfa and cotton aphids in California. UC Plant Protection Quarterly 11(3):8-10.

Photography

Jack Kelly Clark, Principal Photographer, UC Division of Agriculture and Natural Resources

Larry Strand, Photo Librarian, UC Statewide IPM Program

Illustrations

index.html. Redrawn from: Chaney, W. E., and M. A. Lee. 1992. Common aphid pests on vegetable crops in the Salinas valley. University of California, Monterey County Cooperative Extension Service, Salinas, California.

2spots.html. Ilharco, F. A., and A. van Harten. 1987. Systematics. Pp. 51-78. In A. K. Minks and P. Harrewijn. [eds.]. Aphids—Their biology, natural enemies and control. Vol. 2A. Elsevier, Amsterdam.

3tubercle.html. Blackman, R. L., and V. F. Eastop. 1984. Aphids on the world’s crops: An identification guide. Wiley & Sons. Chichester.

4legs.html. Redrawn from: Chaney, W. E., and M. A. Lee. 1992. Common aphid pests on vegetable crops in the Salinas valley. University of California, Monterey County Cooperative Extension Service, Salinas, California.