Organophosphate Resistance in the Banks Grass Mite1
- 1 April 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 70 (2) , 250-252
- https://doi.org/10.1093/jee/70.2.250
Abstract
Several concentrations of parathion, carbophenothion, disulfoton, and phorate in EC or T formulations were tested in the laboratory on 4 Texas strains (Pecos, Seagraves, Petersburg, and Olton) of Oligonychus pratensis (Banks) to determine baseline LC50 and resistance levels. Considerable resistance was detected in all strains to 3 of the compounds but phorate remained fairly effective for the 3 strains on which it was tested. The LC50 for parathion in the Pecos strain was 60-fold higher than for the most susceptible (Olton) strain tested. The highest LC50 in ppm for each of the chemicals was: phorate-10, disulfoton-1095, carbophenothion-1946, and parathion-2067.This publication has 1 reference indexed in Scilit:
- A Comparative Study of Toxicological Test Methods on a Population of the Two-Spotted Spider Mite (Tetranychus telarius)1Journal of Economic Entomology, 1962