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我县地处皖西山区,稻瘟病常年流行,穗颈瘟的为害尤其猖獗,一般年份损失稻谷2~3成,大流行时达5成,少数地区(田块)甚至绝收。因而,稻瘟病历来为我县粮食生产一大障碍。前几年使用春雷霉素防治稻瘟病效果较差,近年来使用三环唑防治稻瘟病防效很高。为了探讨三环唑的施用技术问题,1986年我们作了防治试验,现将试验结果整理如下。
My county is located in the western Anhui mountains, rice blast perennial epidemic, panicle blast damage is particularly rampant, the general year loss of rice 2 to 3 percent, up to 5 percent of the pandemic, a few areas (fields) even absolutely. Therefore, rice blast has always been a major obstacle to food production in our county. A few years ago the use of kasugamycin to combat blast is less effective. In recent years, the use of tricyclazole to control blast is very effective. In order to explore the application of tricyclazole technical problems, we made a control test in 1986, the test results are summarized below.