Screening of Fungicides for the Control of Colletotrichum acutatum in Carthamus tintorious L.

This study was carried out to select fungicides which are effective for the control of anthracnose disease of Carthamus tintorious L. caused by Cottetotrichum acutatum. Eive chemicals, i.e., thiophanate-methyl$.$triflumizole, iminoctadinetris$.$thiram, metiram, bitertanol$.$propineb, metalaxyl$.$dithianon were treated to Cheongiu native variety for the test of control effect. The results obtained were summarized as the follows; No. of harvested plants per ㎡ was most in iminoctadinetris$.$thiram and its value showed 21.2 compared with 16.8 in control. Iminoctadinetris$.$thiram and metiram were most effective to control the disease and their contyol values were 57.2%, and 49.4%, respectively. Chemical injury of five chemicals was not occurred at the double-diluted solution treatment. Seed yield was 47∼48% higher in iminoctadinetris$.$thiram and metiram than 75 kg/10 a in control.

홍화 탄저병 방제 약제 선발

홍화 탄저병에 방제 효과가 높은 약제를 선발하고자 지오판.리프졸 수화제 등 5종의 약제에 대하여 약효 및 약해시험을 실시한 결과를 요약하면 다음과 같다. 1, $m^2$당 수확주수는 무처리 16.8주에 비하여 이미녹타딘트리스치람 수화제 처리에서 21.2주로 가장 많았다. 2. 이미녹타딘트리스치람 수화제와 메티람과립 수화제 처리시 방제가가 49.4~57.2%를 나타내어 효과적 이었다. 3. 약해는 시험약제 5종이 모두 기준량과 배량처리에서 약해가발생하지 않았다. 4.홍화 종실수량은 무처리 75 kg/10a에 비하여 이미 녹타딘트리스치람 수화제와 메티람과립 수화제 처리에서 47~48% 증수되었다.