Resistance Status of Red Flour Beetle (Coleoptera: Tenebrionidae) Infesting Stored Peanuts in the Southeastern United States
- 1 February 1988
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 81 (1) , 74-77
- https://doi.org/10.1093/jee/81.1.74
Abstract
Field strains of red flour beetle, Tribolium castaneum (Herbst), were collected from peanut storage warehouses and processing facilities throughout Georgia and Alabama. They were tested for resistance to three commonly used insecticides and two insecticides Whose registration is pending. Resistance was quantitated by a discriminating-dose procedure. Thirteen of 15 strains had nearly complete malathion resistance, having more than 90% survival when tested with technical material. Resistance to synergized pyrethrins was sporadic; only two populations showed evidence of resistance. There was evidence for resistance in half of the strains to dichlorvos. No indication of resistance to chlorpyrifos-methyl was found. One population from Dothan, Ala., had survivors to the discriminating dose of pirimiphos-methyl, and it also had the highest proportion of survivors to dichlorvos. The Dothan strain showed no evidence of resistance to malathion. Results suggest that cross-resistance between dichlorvos and pirimiphos-methyl might be a potential problem.This publication has 1 reference indexed in Scilit:
- Malathion Resistance in the Red Flour BeetleJournal of Economic Entomology, 1967