Abstract

노린재류는 전작물과 과수를 포함하여 다양한 작물에 피해를 준다. 특히 사과원에서는 썩덩나무노린재와 갈색날개노린재의 피해가 심하다. 사과과실을 선호하는 2종 노린재류(썩덩나무노린재와 갈색날개노린재)에 대하여 적용약제로 등록된 7종(dinotefuran WP, etofenprox WP, chlorpyrifos WP, cabaryl WP, chlothianidin SC, flonicamid WG, and bifenthrin WG)으로 접촉독성과 잔효활성에 대해 수행하였다. 접촉독성 실험에서 디노테퓨란은 갈색날개노린재 수컷에 처리후 48시간에서 96.7%, 썩덩나무노린재 수컷에 처리후 48시간에서 74.5%의 유의성 있는 접촉독성을 보였지만 다른 약제들은 효과가 낮았다. 이들 노린재류에 대한 접촉독성은 암컷보다 수컷에서 더 높았다. 실내조건에서 플로니카미드를 제외한 모든 약제들은 갈색날개노린재 암수모두에 잔효활성의 효과가 있었고, 반면에 클로로피리포스와 비펜트린이 썩덩나무노린재 암수에 대해서 잔효효과가 높았다. 야외에서 비펜트린은 처리후 5일차까지 갈색날개노린재에 대해 높은 잔효효과를 보였고, 썩덩나무노린재에 대해서는 다소 떨어지는 잔효효과를 보였다. 하지만 클로피리포스는 실내 잔효활성 실험에서 높은 잔효효과를 보였으나 야외에서는 두종 노린재에 대하여 낮은 잔효효과를 보였다. Stink bugs do damage on various crops including upland crops and tree fruits. Especially, yellow-brown stink bug (Halyomorpha halys (<TEX>$St{\aa}l$</TEX>)) and brown-winged green (Plautia stali) are severely damaged on apple orchard. Using seven insecticides - dinotefuran WP, etofenprox WP, chlorpyrifos WP, cabaryl WP, chlothianidin SC, flonicamid WG, and bifenthrin WG - registered on apple, contact and residual toxicities were tested on both male and female of P. stali and H. halys that preferred apple fruit. Contact toxicity of dinotefuran WP was excellent on male P. stali 48 hours after treatment (HAT) with 96.7% and significant on male Halyomorpha halys 48 HAT with 74.5% but the others had low effect. Contact toxicity on these stink bugs were higher in male than female. All insecticides except flonicamid, residual effects were all effective on both male and female of P. stali, while chlorpyrifos and bifenthrin were showed higher residual toxicity on both male and female of H. halys in laboratory condition. Two insecticides, chlorpyrifos and bifenthrin, were selected for the field test. Bifenthrin have a high residual effect on P. stali until 5 days after treatment, but have a low residual toxicity on H. halys in the field test. Chlorpyrifos showed higher residual toxicity in the laboratory, however, showed low residual efficacy on two species stink bug onto the field.

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