INSECTICIDE RESISTANCE IN NEW BRUNSWICK POPULATIONS OF THE COLORADO POTATO BEETLE (COLEOPTERA: CHRYSOMELIDAE)
- 31 May 1987
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 119 (5), 459-463
- https://doi.org/10.4039/ent119459-5
Abstract
A study conducted between 1982 and 1985 established the presence of a limited number of populations of Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), resistant to carbofuran in New Brunswick. Additional laboratory tests with two field-collected strains indicated that both were resistant to endosulfan; one strain also showed 43- and 37-fold levels of resistance to carbofuran and phosmet, respectively, and low-level (< 10-fold) resistance to permethrin, fenvalerate, disulfoton, and aldicarb. There has been no measurable spread of resistance.Keywords
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