Canadian Forest Service Publications

Evaluation of insecticides for control of the red pine cone beetle, Conophthorus resinosae Hopkins and the white pine cone beetle, C. Coniperda (Schwarz). 1995. Zylstra, B. F.; de Groot, P.; Helson, B. V. Natural Resources Canada. Canadian Forest Service. Great Lakes Forestry Centre, Sault Ste. Marie, Ontario. Proceedings of the Entomological Society of Ontario, 126:85-90.

Year: 1995

Issued by: Great Lakes Forestry Centre

Catalog ID: 32567

Language: English

Availability: PDF (request by e-mail)

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When solutions of fenitrothion, lindane, carbaryl, permethrin, azinphosmethyl or dimethoate were applied to the pronotum and elytra of individual Conophthorus resinosae Hopkins or C. coniperda (Schwarz) to determine their toxicity, azinphos-methyl was 5-20 times more toxic to both species than the other compounds. Similarly, in tree shoot residue tests, azinphos-methyl was among the most toxic insecticides to both species of beetles. Lindane was most toxic as a residue. With the exception of the topical application of carbaryl, there were no significant differences in the toxicities of the insecticides between C. resinosae and C. coniperda by either route of exposure. On the basis of the results, it appears that azinphos-methyl may provide effective control of both species of cone beetles in the field as a contact insecticide, with lindane better as a residue.