Attraction and Seasonal Occurrence of Piezodorus hybneri monitored with Aggregation Pheromone Traps of Riptortus clavatus

톱다리개미허리노린재의 집합페로몬 트랩에 의한 가로줄노린재의 유인과 발생양상

  • Huh, Wan (Institute of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Huh, Hye-Soon (Institute of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Park, Chung-Gyoo (Institute of Agriculture and Life Sciences, Gyeongsang National University)
  • 허완 (경상대학교 농업생명과학대학 농업생명과학연구원) ;
  • 허혜순 (경상대학교 농업생명과학대학 농업생명과학연구원) ;
  • 박정규 (경상대학교 농업생명과학대학 농업생명과학연구원)
  • Published : 2005.12.30

Abstract

Seasonal occurrence of the stink bug Piezodorus hybneri (Gmelin) (Heteroptera: Penta-tomidae) was monitored at a soybean field and the campus of Gyeongsang National University, Gyeongnam. Korea, in which host plants are less available for the bug with aggregation pheromone traps of Riptortus clavatus Thunberg (Heteroptera: Alydidae) in 2004. At soybean field, P. hybneri began to be attracted to traps from June 28, earlier than flowering stage of soybean plants. Number of P. hybneri attracted increased sharply after October 11. At the campus the bugs were not attracted to traps from March 21 to October 5, but began to be attracted since October 11. Difference in the occurrences in the two sites may suggest that the stink bug immigrates actively into soybean field to find host plant. P. hybneri that had been attracted to traps since October 11 was assumed to be diapausing adults emigrating to hibernation sites. There was no difference between sexes in trap catches. The fact that P. hybneri was attracted from June to late November may suggest that the aggregation pheromone of R. clavatus was attractive to both non-diapausing and diapausing adults of P. hybneri. The aggregation pheromone traps, when baited with 16.7+16.7+16.7 mg or 7+36+7 mg of (E)-2-hexenyl (Z)-3-hexenoate, (E)-2-hexenyl (E)-2-hexenoate, and myristyl isobutyrate, attracted significantly higher number of both sexes of P. hybneri adults than the live male traps baited with ten R. clavatus males and hexane control.

톱다리개미허리노린계의 집합페로몬을 이용하여 적절한 기주가 없는 경상대학교 캠퍼스(경남 진주시)와 기주인 콩이 재배되고 있는 포장에서 가로줄노린재의 발생양상을 비교하였다. 콩포장에서는 개화기 이전(6월 28일)부터 꾸준히 유인되었으며, 10월 11일 이후에 유인수가 급증하였다. 그러나 대학 캠퍼스에서는 3월 21일부터 10월 5일까지 전혀 유인되지 않다가 10월 11일 이후부터 유인수가 급증하였다. 가로줄노린재의 암수가 비슷한 시기에 비슷한 밀도로 콩 포장에서 유인된다는 것은 이 해충이 기주인 콩을 찾아 적극적으로 이동한 결과로 생각된다. 콩 포장과 대학 캠퍼스에서 10월 이후에 유인되는 성충은 월동처를 찾아 이동하는 성충으로 판단되었다. 콩 포장과 대학 캠퍼스에서 총 유인된 암수의 수는 차이가 없었다. 가로줄노린재는 콩 포장에서 6월부터 11월 하순까지 트랩에 유인되었기 때문에, 톱다리개미허리노린재의 집합페로몬은 가로줄노린재의 비휴면성충과 휴면성충 모두에 유인력이 있다고 생각된다. 톱다리개미허리노린재 집합페로몬의 세 성분인 (E)-2-hexenyl (Z)-3-hexenoate, (E)-2-hexenyl (E)-2-hexenoate, 및 myristyl isobutyrate를 16.7+16.7+16.7 mg 또는 7+36+7 mg으로 배합했을 때, 가로줄노린재의 유인수는 무처리나 생충트랩보다 많았고, 두 배합성분 간에는 차이가 없었다.

Keywords

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