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通过对河北省沧州地区种植的紫花苜蓿病虫发生情况进行调查,基本上摸清了该地区苜蓿病虫害的主要种类、发生时间及危害程度,并结合其实际情况,初步总结出了苜蓿主要病虫害的防治措施。
By investigating the occurrence of the diseases and pests of alfalfa planted in Cangzhou, Hebei Province, the main types, the occurrence time and the degree of harm of the alfalfa pests in the area were basically ascertained. Based on the actual situation, the main pests and diseases of alfalfa Prevention.