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The serphoid and chalcidoid parasites of the hessian fly

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By: Gahan, A. B. (Arthur Burton),

Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1933

Holding Institution: U.S. Department of Agriculture, National Agricultural Library

Subjects: AgSpace bio-control agfents biological control agents Classification Diptera grain crops grain pests Hessian flies Host-parasite relationships Insect pests Internet resource natural enemies Parasites Parasitic insects parasitoids plant pests United States