EVOLUTION OF AN APHID-PARASITOID INTERACTION: VARIATION IN RESISTANCE TO PARASITISM AMONG APHID POPULATIONS

Ruth A Hufbauer1, Sara Via1

  • 1Department of Entomology, Section of Ecology and Systematics, Corson Hall, Cornell University, Ithaca, New York, 14853.

Summary

Pea aphid populations specialized on alfalfa show greater resistance to parasitoid wasps than those on clover. This genetically based resistance, not influenced by host plants or behavior, suggests limited evolution of resistance in clover-specialized aphids.

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