武威蔬菜区番茄早疫病发生十分严重,常造成植株早衰早枯,光合功能早期遭到严重破坏,致使番茄结果少,果实小,品质劣,产量低,经济效益差,是多年来影响我区番茄产量的重要因素。为了解决这一突出问题,1988年我们进行了不同化学药剂防治番茄早疫病的筛选试验,现初报如下: 一、材料与方法 1.供试农药及使用浓度:40％抗枯宁(山西临猗 Wuwei vegetable zone tomato early blight is very serious, often lead to plant early dry early, photosynthetic function was severely damaged early, resulting in less tomato, fruit, poor quality, low yield, poor economic efficiency, is affecting my area of ​​tomato An important factor in production. In order to solve this outstanding problem, in 1988 we conducted a screening test of different chemical agents against tomato early blight, are as follows: First, the material and methods 1. Test pesticides and the use of concentration: 40%猗