Abstract
우리 나라 농가에서 담배역병 방제약제로 사용되고 있는 Metalaxyl의 약제 저항성균 발생억제 및 방제를 위한 대체 약제를 선발하기 위하여 시중에서 판매되고 있는 역병방제용 약제 중 Dimethomorph를 비롯한 5종의 약제를 구입하여 시험하였다. 실내 시험에서는 Propamocarb hydrochloride는 Metalaxyl과 유사한 반응을 보여 서로 교차저항성이 있는 것으로 조사되었으며 Oxadixyl + Mancozeb, Dimethomorph + Mancozeb 등이 실내시험 및 포장시험 결과 약효가 우수하여 Metalaxyl 대체약제로 선발되었다. Five commercial chemicals, Dimethomorph, Foseyl-Al, Oxadixyl + Mancozeb, Propamocarb hydrochloride, and Metalaxyl, were tested for control of tobacco black shank (Phytophthora nicotianae) and/or delaying buildup of the resistant population to Metalaxyl which has been used for control of the disease in Korean tobacco farms. Propamocarb hydrochloride seemed to have a cross-resistance to the Metalaxyl resistant isolates showing similar response with Metalaxyl in vitro. Meanwhile, Dimethomorph+Mancozeb and Oxadixyl+Mancozeb were selected to be the promising chemicals which are able to be alternative to Metalaxyl for the black shank control in accordance with in vitro and in field trial.
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