CAJ | 학술논문

在贵州省兴义市白碗窑镇，采用五点取样法对烤烟品种云烟87号的烟草赤星病发生为害情况进行了调查及药剂防治试验，结果表明：烟草赤星病于7月中下旬至8月初发生为害，多雨天气下扩展蔓延较快，成熟采收期的平均发病率达30．81％，平均病情指数为10．43；采用40％菌核净400～800倍液喷雾防治均有明显效果，防效为53．12％～64．60％，以600倍液喷雾处理的烟叶烘烤后质量等级最高，中上等烟比例较对照提高14个百分点，折合综合经济效益较对照提高6783．35元/hm2，增收效果明显，但不同施药浓度对烟叶产量的影响不明显。
재귀주성흥의시백완요진，채용오점취양법대고연품충운연87호적연초적성병발생위해정황진행료조사급약제방치시험，결과표명：연초적성병우7월중하순지8월초발생위해，다우천기하확전만연교쾌，성숙채수기적평균발병솔체30．81％，평균병정지수위10．43；채용40％균핵정400～800배액분무방치균유명현효과，방효위53．12％～64．60％，이600배액분무처리적연협홍고후질량등급최고，중상등연비례교대조제고14개백분점，절합종합경제효익교대조제고6783．35원/hm2，증수효과명현，단불동시약농도대연협산량적영향불명현。
Using five-point sampling method , we conducted an investigation on the occurrence and damage of tobacco ( Yun-yan No.87) Alternaria alternate ( Fr.) Keissler, as well as experiments for its control by fungicides in Baiwanyao town , Xingyi cit-y, Guizhou province .The experimental results showed that tobacco Alternaria alternate occurred and endangered from middle -late July to the beginning of August , and spread faster under rainy weather .The average incidence of this disease in tobacco ripe and harvest period reached 30.81%, and the average disease index was 10.43.Spraying 400~800-times dilutions of 40%Dimetha-chlon had remarkable control effect on tobacco Alternaria alternate, and the control effect was 53.12%~64.60%.Spraying 600-times dilution of 40%Dimethachlon could obtain the highest quality grade of baked tobacco leaves , 14 percent higher mid-high-grade tobacco leaf proportion than the control , and 6786.82 yuan/hm2 higher comprehensive economic benefit than the control .But the concentration of sprayed fungicides had no significant influence on the yield of tobacco leaf .