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大麦黄花叶病(BYMV),发病随种植面积的扩大有逐年增加的趋势,轻病田产量损失10—15％;发病重的损失40％左右。目前尚无抗病品种。1983年秋至1985年上半年对大麦黄花叶病的综合防治作了试验,并收到一定效果,方法如下: 1.轮作 采用大麦—水稻-油菜-水稻-绿肥-水稻-小麦-水稻-大麦等多种作物的合理轮作,可明显减少大麦黄花叶病的发生率。因大麦黄花叶病毒只为害大麦而不为害小麦,水稻、绿肥等作物。
Barley yellow mosaic disease (BYMV), the incidence of disease with the expansion of planting area has increased year by year trend, yield 10-15% of light sick field; the incidence of severe loss of about 40%. There is no disease-resistant variety. The comprehensive control of barley yellow mosaic disease was tested from autumn 1983 to the first half of 1985 and received some results as follows: 1. Rotation using barley - rice - rape - rice - green manure - rice - wheat - rice - barley, etc. Reasonable rotation of a variety of crops can significantly reduce the incidence of barley yellow mosaic disease. Barley Yellow Mosaic Virus is not harmful to wheat, rice, green manure and other crops because it is harmful to barley.