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近两年来有的地方绿豆供应紧缺,查其原因:一是种植面积减少;二是病虫防治不力,产量不高不稳。经我县农技站,驻区点技术干部调查:绿豆低产重要原因之一,就是白粉病危害所致。绿豆白粉病的病源是一种真菌,它具有菌丝体和病菌孢子。这种病菌孢子最易借风力进行传播。加上绿豆植株矮小密集,通风透光差,湿度大,导致绿豆容易感病。据观察,绿豆白粉病一般先发病于植株阴蔽的叶片,随后向植株上部茎叶蔓延,
Some places in the past two years, the lack of supply of green beans, check the reasons: First, reduced acreage; Second, pest control weak, not high yield instability. Agricultural Science and Technology Station by the county, the station technical cadres survey: one of the important reasons for mung bean low production, is the result of powdery mildew hazards. Mung bean powdery mildew is the source of a fungus, it has mycelium and bacteria spores. Spores of this bacteria most easily by wind force spread. Mung bean plants with short and dense, poor ventilation and humidity, humidity, resulting in susceptible mung bean. It is observed that mung bean powdery mildew generally first onset in the shade of the leaves of plants, followed by the upper stems and leaves of plants spread,