论文部分内容阅读
西瓜枯萎病是西瓜的严重病害,尤以苗期危害最烈,一般死苗达5～12％,高的达到50％以上。1985年武宁县种3560亩西瓜,其中死苗率30％以上的面积就有195亩,占总面积5.5％,1986年全县种植4060亩西瓜,死苗率30％以上的面积又有230亩,占面积5.7％。原用托布津、多菌灵农药防治,有一定效果,但这两种农药市场价格昂贵,且经多年使用,病菌也逐渐产生了耐药性,防效降低。因此,枯萎病已成为发展西瓜生产的主要障碍。为了控制此病的发生,寻求新的药剂,县植保站1986年引进抗枯宁,进行对比试验,现将结果简报如下:
Watermelon Fusarium wilt is a serious disease of watermelon, especially the hardest at seedling stage, the general dead seedlings up to 5 to 12%, high to 50% or more. 1985 Wuning County, 3560 acres of watermelon, of which more than 30% dead seedling area has 195 acres, accounting for a total area of 5.5%. In 1986, the county planted 4060 acres of watermelon, dead seedling rate of more than 30% area of 230 acres , Accounting for 5.7% of the area. The original Tuobu Jin, carbendazim pesticide control, have a certain effect, but the two kinds of pesticides market is expensive, and after years of use, the bacteria also gradually have resistance, reduce control efficiency. Therefore, blight has become a major obstacle to the development of watermelon production. In order to control the occurrence of the disease and seek new agents, the county plant protection station in 1986 to introduce anti-Kui Ning, the comparative test, the results of briefings are as follows: