Toxicity of Deltamethrin, Chlorpyriphos and Fenvalerate in Rhizopertha dominica population selected for resistance

  • 01/06/2008

  • Pesticide Research Journal

Population of Rhizopertha dominica Fab. selected for resistance by single pre-storage application of deltamethrin, pirimiphos methyl and a newer PGP-2 along with the laboratory susceptible culture tested for resistance to deltamethrin, chlorpyriphos methyl and fenvalerate after two years of wheat storage indicated no appreciable resistance in various selections except for 2.6 fold resistance in deltamethrin selection and 1.8 fold resistance in pirimiphos methyl selections against deltamethrin.