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Title: Recent (1977-1980) releases of imported larch casebearer parasites for biological control.
Author: Ryan, Roger B.;
Source: Res. Note PNW-RN-377. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 6 p
Publication Series: Research Note (RN)
Description: Releases of Diadegma laricinellum (Hymenoptera: Ichneumonidae), Dicladocerus westwoodii, Dicladocerus japonicus, Chrysocharis laricinellae, Elachertus argissaj, Necremnus metalarus (Hymenoptera: Eulophidae), and Agathis pumila (Hymenoptera: Braconidae) for biological control of the larch casebearer in Oregon, Idaho, and Pennsylvania included some newly imported stocks and additional release locations. More than 14,000 parasites were released at eight sites.
Keywords: Parasites (insect), forest pest control, larch casebearer, Coleophora laricella, biological control, forest pests
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Ryan, Roger B. 1981. Recent (1977-1980) releases of imported larch casebearer parasites for biological control. Res. Note PNW-RN-377. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 6 p
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