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:1999年一种玉米“新病害”在贵州省大方等县爆发流行。为了给防治此害提供理论依据 ,通过借助国内外报道过的有关资料 ,对此病进行了诊断。诊断结果为玉米鼠耳病。并在发病重的地域进行了发病因素调查。调查结果为 :(1)玉米品种间存在着抗病性差异 ;(2 )玉米与小麦套种的地块发病重 ;(3)同一乡 (镇 )内低海拔地区发病早而重 ;(4 )玉米地周围杂草多发病重 ;(5)播种期适当提早并加盖地膜的发病轻。根据发病因素 ,提出了防治意见
: A maize “new disease” broke out in 1999 in Dafang County of Guizhou Province. In order to provide a theoretical basis for the prevention and treatment of this disease, the disease has been diagnosed through the help of relevant information reported at home and abroad. The diagnosis is corn ear disease. And incidence of heavy areas in the incidence of disease investigation. The results are as follows: (1) there are differences in disease resistance between maize varieties; (2) the incidence of maize and wheat intercropping is heavy; (3) the incidence is earlier and heavier in the lower elevations of the same township; (4) The weeds in the corn field are more and more severe; (5) The sowing time is appropriate and the incidence of the cover film is light. According to the incidence of factors, put forward prevention and treatment advice