콜레마니진디벌에 대한 83종 농약의 독성평가 및 천적과 농약의 혼용에 의한 복숭아혹진딧물의 방제효과

Evaluation of Toxicity of 83 Pesticides against Aphid Parasitoid, Aphidius colemani (Hymenoptera: Braconidae), and Control Effects of the Green Peach Aphid, Myzus persicae with a Combination of Aphid Parasitoid and Pesticides

  • 김진주 ((주)세실 유용곤충부설연구소) ;
  • 서동규 (충북대학교 농업생명환경대학 식물의학과) ;
  • 김길하 (충북대학교 농업생명환경대학 식물의학과)
  • Kim, Jin-Ju (Beneficial Insect Research Institute Sesil Corp) ;
  • Seo, Dong-Kyu (Dept. of Plant Medicine, Chungbuk National University) ;
  • Kim, Gil-Hah (Dept. of Plant Medicine, Chungbuk National University)
  • 발행 : 2006.08.01

초록

원예용 병해충 방제약제로 등록되어 있는 79종과 농약보조제 4종의 농약에 대하여 콜레마니진디벌 (Aphidius colemani) 성충에 대한 독성을 조사한 결과, $\alpha$-cypermeth.in 외 5종의 살충제와, metalaxyl-M+mancozeb 외 12종의 살균제, bifenazate외 3종의 살비제가 독성이 낮았다. 그리고 농약보조제는 모두 낮은 독성을 보였다. 50%이상의 살충률을 보였던 40종의 약제에 대하여 잔류독성 평가를 수행한 결과, 11종의 약제가 처리 3일 이후에 콜레마니진디벌 성충에 안전하였고, 5일 이후에는 7종,그리고 처리 7일 이후에는 14종에 대하여 낮은 독성을 나타냈다. 그러나 chlorpyrifos-methyl, diflubenzuron+chlorpyrifos, etofenprox+diazinone, imidachloprid+chlorpyrifos 4종에 대해서는 7일차 이후에도 각각 100%, 97.7%, 100%, 100%의 높은 살충율을 보였다. 온실에서 콜레마니진디벌에 의한 복숭아혹진딧물의 방레효과를 조사하기 위하여, 복숭아혹진딧물의 밀도가 주당 50마리 일 때, 콜레마니진디벌을 50:1과 100:1의 비율로 방사하였다. 방사 후 진딧물 밀도가 크게 증가하지 않고, 20일차까지 지속적으로 60마리 수준으로 유지되었다. 조사기간 동안 흰가루병과 총채벌레 방제약제를 함께 처리하였으나, 콜레마니진디벌의 머미(mummy)형성에 영향을 미치지 않았다. 시설원예에서 콜레마니진디벌에 안전한 선택약제와 콜레마니진디벌을 함께 이용할 경우 효과적인 진딧물 방제가 가능할 것이다.

As the results achieved by the evaluation of toxicities on an aphid parasitoid, Aphidius colemani by 79 pesticides registered as horticultural pesticide and 4 adjuvants far pest control, 6 insecticides including a-cypermethrin, 13 fungicides including metalaxyl-M+mancozeb and 4 acaricides including bifenazate showed low toxicity against A. colemani adult. Low toxicity was showed in all the 4 adjuvants as well. In residual toxicity test from 40 pesticides which showed toxicity more than 50%, A. colemani was safe from 11 pesticides from the 3th day after treatment, 7 pesticides from the 5th day after treatment and 14 pesticides from the 7th day after treatment, respectively. But, chlorpyrifos-methyl, diflubenzuron+chlorpyrifos, etofenprox+diazinone and imidachloprid+chlorpyrifos showed high toxicities reaching 100%, 97.7%, 100% and 100% respectively, even from the 7th day after treatment. To evaluate the control effect by A. colemani against Myzus persicae in a greenhouse, A. colemani was released at parasitoid versus aphids rates of 1:50 and 1:100 when the population of M persicae was 50 per plant. After release, aphids population remained steady for 20 days after release at the level of around 60 aphids per plant. During the investigation, insecticides fur thrips control and fungicides for powdery mildew control were treated, but didn't affect the mummy forming of A. colemani. It may be suggested from these results that the selected insecticides, fungicides, acaricides and adjuvent could be incorporated into the integrated M. persicae management system with A. colemani on greenhouse cultivation.

키워드

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