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

Marion Page; Roger B Ryan; Nancy Rappaport; Fred3 Schmidt

doi:10.1093/ee/11.3.730

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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 nearcticus^1,2

Informally Refereed

Authors:

Marion Page, Roger B Ryan, Nancy Rappaport, Fred<sup>3</sup> Schmidt

Year:

1982

Type:

Miscellaneous Publication

Station:

Pacific Southwest Research Station

DOI:

https://doi.org/10.1093/ee/11.3.730

Source:

Environ. Entomol. 11: 730-732

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Abstract

Fourth-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.

Citation

Page, 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 nearcticus^1,2. Environ. Entomol. 11: 730-732