Sex Pheromone Composition for Field-trapping of Dichocrocis punctiferalis (Lepidoptera: Pyralidae) Males

최적의 야외유인을 위한 복숭아명나방(Dichocrocis punctiferalis)의 성페로몬 조성

  • 정진교 (농업과학기술원 잠사곤충부) ;
  • 한경식 (서울대학교 곤충생리학실) ;
  • 최광식 (임업연구원 남부시험장) ;
  • 부경생 (서울대학교 곤충생리학실)
  • Published : 2000.08.01

Abstract

Sex pheromone composition was analyzed for Dichocrocis punctiferalis, which attacksapple, peach, chestnut fruits, etc., and its behavioral and field trapping studies were conducted to developa monitoring system with its sex pheromone. Virgin females showed maximum mating behavior andhairpencil extrusion behavior between 4-5 hrs after lights-off under 16L18D photoperiod and 26rf 1 "C.During this period, two sex pheromone components, ElO-hexadecenal and ZlO-hexadecenal, weredetected by GC analysis in the hexane extract of abdominal tips of virgin females. The best attraction ofmales to various synthetic sex pheromone blends was obtained at the 70 : 30 ratio of ElO-hexadecenal andZ10-hexadecenal for hair pencil extrusion and at the 80 : 20 ratio for flying upwind response. The highestattractiveness in fields was obtained between 70 : 30 and 80 : 20 from several tests in apple, peach andchestnut orchards.and chestnut orchards.

사과, 복숭아와 밤 열매 등을 가해하는 주요해충 중의 하나인 복수아명나방(Dichocrcis punctiferalis)을 성페로몬을 이용하여 발생예찰하기 위해 성페로몬 성분분석과 행동관찰, 성페로몬 조성별 야외포획실험을 수행하였다. 처녀암컷의 교미행동은 16L:8D의 광주기 $26\pm$1$^{\circ}C$ 온도조건에서 소등 후 4시간째에, 수컷의 가는털뭉치 돌출행동은 5시간째에 최고를 나타내었다. 이시간대의 암컷 복부 끝 헥산추출물에서는 E10-hexadecenal과 Z10-hexadecenal이 가스크로마토그래피 분석에 의해 85:15의 비율로 검출되었다. 야외에서 수컷 성충을 유인하기 위해 두 성분의 합성화합물을 이용하여 사과 및 복수아와 밤 과수원에서 포획실험이 수행되었는데 E10-hexadecenal과 Z10-hexadecenal이 70:30~80:20의 비율에서 가장 많이 포획되었고, 이와 유사한 조성에서 수컷의 가는털뭉치 돌출반응과 상승비행반응이 관찰되었다.

Keywords

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