Non-Chemical Treatments for Control of Codling Moth Cydia pomonella L. (Lepidoptera: Tortricidae) in Quetta Valley

Abstract.-Present study was conducted in an apple orchard to evaluate the efficacy of corrugated paper band and pheromone trap as a non-chemical control strategy in relation to degree days against codling moth at Sariab, Quetta, Balochistan. Corrugated paper band (CPBs) were wrapped around the trunk and other main branches of apple trees to collect the larvae and pupae of Cydia pomonella during 1997-1999. Number of over-wintering larvae trapped in CPBs was significantly different in 1997 compared with 1999 but was not significantly different from 1998. Pheromone traps with female moth attractants were used for mating disruption to reduce the larval and male moth populations. Overall average percent infestation caused by the larvae of C. pomonella was 16.34% in 1998 and 16.23% in 1999. Statistical analysis of data on fruit infestation showed significant differences between generation at Pvalue <0.001 for 1998 and 1999. During the present investigations larval and pupal parasites of this insect pest were also observed in CPBs. The Ichneomonid wasp, Diplazon sp. (Hymenoptera: Ichneomonidae) was recorded for the first time in Balochistan