NC State Extension

Parasitoids in Soybeans

Ichneumonid Wasps

Ichneumonid wasps are black and have a lighter coloration on the legs with a slender long body. Females have a long ovipositor at the tip of their abdomen. They are parasitoids that can parasatize internally or externally and mainly attack caterpillar larvae and pupae.

Ichneumonid wasp. Photo by Christian Goga

Ichneumonid wasp. Photo by Christian Goga

Braconid Wasps

Braconid wasps look similar to Ichneumonid wasps with a long slender body and long ovipositor on females. They tend to be internal parasitoids but will pupate outside the host’s body. They attack the larvae of caterpillars, beetles, flies and can be an important parasitoid to aphids.

Adult Braconid wasp emerging from pupae on a parasitized host. Photo by Galvanston County Master Gardeners, TX

Adult Braconid wasp emerging from pupae on a parasitized host. Photo by Galvanston County Master Gardeners, TX

Tachinid Fly

Tachinid flies look like houseflies but can vary in size and shape. They are hairy, black, grey or can be striped colored. They attack caterpillar larvae, beetles, grasshoppers, and true bugs.

Tachinid fly life cycle. Photo by UC Statewide IPM Project, University of California

Tachinid fly life cycle. Photo by UC Statewide IPM Project, University of California

References

Kain, D. P. and J. P. Nyrop. 1995. Predatory mites. Cornell Cooperative Extension. Insect identification. Sheet 123.

Krischik, V. and J. Davidson. 2013. IPM of Midwest landscapes.

Information by R. Suits 2013

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