Abstract
The two-spotted spider mite, Tetranychus urticae Koch, is one of the most important pests of strawberry and ornamental plants (e.g. roses, chrysanthemum) in Brazil. One of the problems faced by the growers is the low efficacy of T. urticae control through the use of acaricides. The biological disequilibrium caused by the elimination of natural enemies and the development of resistance to …