Integrated Pest Control of Victorian Peach Orchards: the Role of Typhlodromus Occidentalis Nesbitt (Acarina: Phytoseiidae).

Abstract

The potential importance of the predatory mite T. occidentalis in controlling Tetranychus urticae Koch, was evaluated during a 3-year period in a peach orchard at Cobram, Vic. The tolerance of the predator to parathion enabled it to survive where this chemical was applied for control of Cydia molesta Busck. T. occidentalis was not found on leaves where azinphos-methyl was applied. The use of parathion also permitted quicker recolonization by Stethorus species which, together with T. occidentalis, gave substantial control of T. urticae in two out of the three seasons. Lure jars were used to time applications of parathion; adequate control of C. molesta and Epiphyas postvittana Walker was achieved in early and mid-season peach cultivars; however, fruit from a later maturing cultivar was damaged excessively by C. molesta.