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Development of Wax-typed Pheromone Dispenser for Mating Discruption of the Oriental Fruit Moth, Grapholita molesta, and Its Application Technique

복숭아순나방(Grapholita molesta) 교미교란용 왁스형 페로몬방출기와 그 적용 기술 개발

  • Published : 2008.09.30

Abstract

A wax-typed pheromone dispenser has been developed and applied to control outbreak of the oriental fruit moth, Grapholita molesta, in apple orchard. To optimize its application technique, this study analyzed effect of different amounts of the pheromone dispenser on mating disruption('MD') of G. molesta. Different pheromone dispenser amounts significantly influenced the MD effect assessed by cumulative male adult catches monitored respectively by sticky delta trap and food trap, and resulted in differential damage on host plants. In a field test during entire growing season, a standard amount(120 g per 0.117 ha) of wax-typed pheromone dispenser was proved to be effective to suppress outbreak of G. molesta adults and to prevent host plant damage as much as a current commercial MD product($Isomate^{(R)}$). This study also demonstrated an effectiveness of deployment of food trap barriers around MD-treated area to prevent immigration of mated females from outside untreated areas. These results indicate that the wax-typed pheromone dispenser can be applied to control field G. molesta populations and its co-application with fuod trap barriers would be optimal to maximize MD efficacy.

왁스형 페로몬 방출기를 제작하여 사과원에 발생하는 복숭아순나빙(Grapholita molesta) 밀도를 억제하기 위한 교미교란제로 응용하였다. 아울러 이 왁스형 교미교란제의 방제효과를 극대화하기 위해 본 연구는 처리량에 따른 복숭아순나방의 교미교란 효과를 비교 분석하였다. 이때 교미교란 효과를 모니터링 페로몬 트랩 및 먹이트랩에 유인되는 누적 성충 밀도의 감소 및 기주 식물의 피해로 분석한 결과 왁스형 교미교란제 처리량에 따라 상이하게 나타났다. 개발된 왁스형 교미교란제를 기준량(350평당 120 g)으로 처리한 결과, 현재 상용화되고 있는 교미교란제($Isomate^{(R)}$)와 뚜렷한 차이 없이 복숭아순나방 밀도 억제와 과실피해 감소효과를 나타냈다. 본 연구는 또한 교미교란 처리지역 가장 자리에 먹이트랩을 배치할 경우 비처리지역에서 유입되어 오는 교미한 암컷의 이동을 막는 효과가 있는 것으로 확인하였다. 이러한 결과들로 미뤄 왁스형 페로몬 방출기는 복숭아순나방 교미교란제로 응용될 수 있으며, 과수원 주변에 배치하는 먹이트랩과 혼용하는 경우 교미교란 효과를 증진시킬 수 있을 것으로 본다.

Keywords

References

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