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How to Manage Pests

Identification: Natural Enemies Gallery

Lysiphlebus testaceipes

Scientific name: Lysiphlebus testaceipes

Life stages of Lysiphlebus testaceipes

Click on image to enlarge

Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Aphidiidae

Common hosts: Cotton/melon aphid and many other aphid species in the genera Brachycaudus, Macrosiphum, and Myzus on many plants

Commercially available: Yes

DESCRIPTION      Life Cycle

The Lysiphlebus testaceipes adult is a tiny, less than 0.118 inch (3 mm), slender, dark greenish to black wasp. The female wasp lays an egg inside the aphid. The developing offspring feeds grows inside the aphid, killing it and causing it to transform into a brown mummy. L. testaceipes overwinters as a larva or pupa inside aphid mummies. At maturity, the adult wasp exits through a hole it cuts in the top of the mummy. The developing offspring feeds grows inside the aphid, killing it and causing it to transform into a brown mummy.

Development from egg to adult takes about 14 days at 70F. The easiest way to detect this parasite is to look for brown mummies on aphid infested leaves.


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

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