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甜菜褐斑病是甜菜产区发生普遍、为害较重的病害,尤其在多雨、气温较高地区更为严重。据调查,一般发生年份,块根因此病为害减产20—30%,根中糖分降低1—2度。1966年,我所利用醋苯锡进行了防治试验,效果良好。1970—1971年,在呼兰、双城、五常、巴彦等县九个生产大队900亩甜菜地上利用国产醋苯锡作了防治甜菜褐斑病的试验示范,获得显著成效,不仅防病效果好,块根和茎叶产量高,根中糖分显著增加,同时还能增强植株对根腐病的抗性,具有防治甘兰夜蛾的作用。据原野大队试验,未喷药的甜菜地亩产块根4,120
Sugar beet leaf spot is common in sugar beet producing areas and harms the most serious diseases, especially in rainy and high temperature areas. According to the survey, the general occurrence of the year, the root cause of the disease cut 20-30% of the crop, root sugar to reduce 1-2 degrees. In 1966, I used vinegar tin prevention and control test, the effect is good. From 1970 to 1971, the pilot demonstration of prevention and control of sugar beet leaf brown spot was conducted on 900 acres of sugar beet in nine production brigades of Hulan, Shuangcheng, Wuchang and Bayan counties, with notable effects of disease prevention Good, root and stem and leaf yield is high, the root sugar increased significantly, but also can enhance the resistance of plants to root rot, with the prevention and treatment of H. armigera role. According to the Wilderness Unit test, not sprayed beet acres per mu root 4,120