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近年来玉米丝黑穗病和玉米瘤黑粉病,在一些地区均有发生且有逐年加重之势。发病后均可造成玉米穗变黑,丝黑穗病主要在玉米穗部表现症状,而玉米瘤黑粉病除在穗部表现明显症状外,还会在玉米其他部位涌现黑瘤。病菌主要侵染植株幼嫩部位,形成的黑穗和黑粉瘤,会消耗大量养分,并有可能导致植株空秆不结实,严重影响玉米产量。玉米丝黑穗病和玉米瘤黑粉病的发生特点有些相似,在防治方法上也差不多,要真正做到有效防治,降低用药成本,各地有一条成功的经验:就是
In recent years, maize smut and maize smut have occurred in some areas and have been increasing year by year. After the onset of corn ear can cause black, head smut symptoms mainly in the ear of corn, and maize powdery mildew in addition to the obvious symptoms in the spike, but also in other parts of corn melanoma. Germs mainly invade plant tender sites, the formation of black ears and black powder tumors, will consume a lot of nutrients, and may lead to plant stalks are not strong, seriously affecting the yield of corn. Maize smut and maize smut are some of the similarities in the incidence of control methods are similar, we must effectively prevent and reduce the cost of medication, all over a successful experience: that is