Comparative toxicity of Acephate, Diflubenzuron, and Malathion to larvae of the Larch Casebearer, Coleophora laricella (Lepidoptera: Coleophoridae) and adults of its parasites, Chrysocharis laricinellae1 and Dicladocerus nearcticus1,2Author(s): Marion Page; Roger B Ryan; Nancy Rappaport; Fred<sup>3</sup> Schmidt
Source: Environ. Entomol. 11: 730-732
Publication Series: Miscellaneous Publication
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DescriptionFourth-instar larch casebearer, Coleophora laricella (Hübner), was significantly less susceptible to acephate and malathion than were adults of its parasites. Chrysocharis larcinellae(Ratz.) and Dicladocerus nearcticus Yoshimoto (P0.01) than the hosts to diflubenzuron. Malathion was equally toxic to both parasite species. D.nearcticus appeared to be the more tolerant of the parasites to both acephate and diflubenzuron.
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CitationPage, Marion,; Ryan, Roger B,; Rappaport, Nancy,; Schmidt, Fred3 1982. Comparative toxicity of Acephate, Diflubenzuron, and Malathion to larvae of the Larch Casebearer, Coleophora laricella (Lepidoptera: Coleophoridae) and adults of its parasites, Chrysocharis laricinellae1 and Dicladocerus nearcticus1,2. Environ. Entomol. 11: 730-732
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- Recent (1977-1980) releases of imported larch casebearer parasites for biological control.
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