Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Use of Sprinkler System for Control of Dryocosmus kuriphilus on Chestnut Orchards

스프링클러시스템을 이용한 밤나무흑벌 방제에 관한 연구

  • Published : 2006.10.01
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Abstract

In order to prevent chestnut from damaged by the chestnut gall wasp, Dryocosmus kuriphilus, a sprinkler system was installed on the chestnut orchard. Such a test was conducted at Sanchung-gun, Kyeongnam province, Korea in 2003 and 2004. Insecticide of carbaryl 50% WP, x1,500 was sprayed at every day and two-day intervals during the period of D. kuriphilus adult occurrence by sprinkler system. The chestnut gall wasps generally emerged for about 35 days from the middle June to the middle July, and peak emergence was 5 days of early July. Crown application of carbaryl by sprinkler system was found to be highly effective for control of the chestnut gall wasp. Gall formation rate of chestnut were 3.0 and 12.8% on average with crown insecticide spraying at every day and two-day intervals, while 82.9% when not treated. Control effectiveness of this insecticide spraying was 96.4% and 84.6%, respectively.

밤나무림내에 sprinkler system을 고정 설치하고, 이를 이용하여 적정한 시기에 일시에 그리고, 간편하게 약제를 살포함으로써 밤나무의 주요해충인 밤나무흑벌(Dryocosmus kuriphilus)의 피해를 효과적으로 방제할 목적으로 2003년부터 2년간 경남 산청군 신안면에서 본연구가 수행되었다. 공시약종은 carbaryl 50% WP, 1,500배액을 사용하였으며, 얻어진 결과는 다음과 같다. 밤나무흑벌 성충의 우화시기는 6월 중순부터 7월 중순까지 약35일간이며, 우화최성기는7월상순의 약 5일간이었다. 밤나무흑벌의 우화 및 산란시기에 Carbaryl 50% WP 1,500배액의 수관살포는 밤나무흑벌에 탁월한 방제효과가 있었다. 즉 매일살포구의 평균 충영형성율은 3.0%, 2일간격 살포구의 평균 충영형성율은 12.8%로서 이들은 무처리구의 평균충영형성율 82.9%와 비교하여 각각 96.4% 및 84.5%의 높은 방제효과가 인정되었으며 수관부위별로는 차이가 없었다.

Keywords

References

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