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Recent (1977-1980) releases of imported larch casebearer parasites for biological control.Author(s): Roger B. Ryan
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)
Station: Pacific Northwest Research Station
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DescriptionReleases 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.
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CitationRyan, 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
KeywordsParasites (insect), forest pest control, larch casebearer, Coleophora laricella, biological control, forest pests
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