Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Use of Sprinkler System for Control of Peach Pyralid Moth, Dichocrocis punctiferalis on Chestnut Orchard

살수장치(撒水裝置)를 이용(利用)한 복숭아명나방 방제(防除)에 관(關)한 연구(硏究)

  • 정상배 (상지대학교 산림과학과)
  • Received : 2005.07.12
  • Accepted : 2005.08.05
  • Published : 2005.09.30
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Abstract

In order to prevent chestnuts from damage by the peach pyralid moth, Dichocrosis punctiferalis, a sprinkler system was installed on the chestnut orchard. Such a test was conducted at Yeoju-gun, Gyeonggi-do, Korea in 2002. Insecticides of fenitrothion 50% EC, x1,000 and diflubenzuron 25% Wp, x2,500 were sprayed at ten-day fifteen-day and twenty-day intervals during the period of D. punctiferalis adult occurrence by sprinkler system. The peach pyralid moths generally emerged for about 60 days from early July to early September, and peak emergence was 10 days from late July to early August. Damage rate of chestnuts were 0.9-4.0% on average with this crown insecticide spraying with diflubenzuron, while 30.4% when not treated. Control effectiveness of this insecticide spraying was 92%(86.7-97.0%). In conclusion, effectual times and number of insecticide application with sprinkle system against peach pyralid moth were from early July to late August and four or five times at ten or fifteen day intervals, respectively.

밤나무재배지 내에 살수장치를 고정 설치하고, 이를 이용하여 일시에 약제를 살포함으로써 밤나무의 중요 종실해충인 복숭아명나방(Dichocrocis punctiferalis)의 피해를 효과적으로 방제할 목적으로 2002년에 경기도 여주군 장천면에서 연구가 수행되었다. 공시약종은 fenitrothion 50% EC 1,000배액 및 diflubenzuron 25% WP 2,500배액을 사용하였으며, 얻어진 결과는 다음과 같다. 복숭아명나방의 2세대 성충우화시기는 7월 상순부터 9월 상순까지 약 60일간이며, 우화최성기는 7월 하순부터 8월 상순의 약 10일간이었다. 살수장치(스프링클러)에 의한 수관약제살포는 관행의 지상약제살포와 비교하여 아주 효율적이었다. Diflubenzuron 25% WP 2,500배의 수관살포는 무처리의 피해율 30.4% 와 비교하여 2.3%(0.9-4.0%)로서 92%(86.7-97.0%)이상의 높은 방제효과가 있었다. 복숭아명나방에 대한 적정약제 살포시기 및 살포횟수는 7월 상순부터 8월 하순까지 10-15일 간격으로 4-5회 살포하는 것이 효과적이었다.

Keywords

References

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