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夏玉米青枯病是一种较为复杂的土传病害，以往发病较轻，近年来有爆发流行趋势。由于青枯病的发生一般在复播玉米的灌浆乳熟期，所以染病后植株会突然青枯死亡，造成严重减产。据田间测产：收获前半个月发病的千粒重可下降146．1克，收获前10天发病的粒重可降低69、9克。据资料
Summer corn bacterial wilt is a more complex soil-borne diseases, the incidence of mild in the past, there is a trend of outbreak in recent years. Since the occurrence of bacterial wilt is generally in the process of grouting and milking of the resumed corn, the plants will suddenly die dead and wither and cause severe yield loss. According to the field test: the first half of the harvest incidence of 1000-grain weight can drop 146.1 grams, 10 days before harvest incidence of grain weight can be reduced 69,9 grams. According to the information