TETRANYCHIDAE) ON COTTON, AS INFLUENCED BY PESTICIDES AND TIME OF ESTABLISHMENT RELATIVE ABUNDANCE OF 3 SPECIES OF SPIDER-MITES (ACARI

Gossypium hirsutum was planted in the W-central San Joaquin Valley, California, during consecutive seasons. Plants were treated with dicofol, methyl parathion, and/or permethrin, to manipulate densities of spider mites, Tetranychus spp., within the plots. Spider mite densities were also modified by inoculative releases of Tetranychus turkenstani. Populations of T. urticae exhibited susceptibility to dicofol, relative to the dicofol resistance of T. pacificus. Early-season inoculative releases of T. turkestani increased the relative abundance fo T. turkestani especially in untreated plots; late releases were less effective than early releases in promoting the buildup of T. turkestani. -from Authors

RELATIVE ABUNDANCE OF 3 SPECIES OF SPIDER-MITES (ACARI, TETRANYCHIDAE) ON COTTON, AS INFLUENCED BY PESTICIDES AND TIME OF ESTABLISHMENT Academic Article