Abstract
Background. Information on the change in the correlation of genotypes in arthropod populations after treatment of crops with pesticides is essential for effective insectoacaricide resistance management. Materials and methods. Lines of two-spotted mite the homozygous for the gene of resistance to malathion, bifenthrin, bromopropylate and abamectin were obtained by disruptive selection cycles with treatments diagnostic concentrations of these acaricides. Crossing mites were produced heterozygous females with genes of resistance to malation and one of the other three acaricides, as well as families of their filial generation. Females of the three genotypes were compared the value of the degree resistance when testing mites by diagnostic concentrations of acaricides. Results. Combinations of distribution of alleles of resistance to acaricides of different chemical classes in mites of the filial generation of diheterozygous females did not determine the differences from the parent females in the degree of mortality. Conclusion. Epistatic interaction of alleles of resistance to toxicants of different chemical classes allows be used only two insectoacaricides in turn for resistance management.
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