川麦冬蛴螬优势种生物学特性及危害规律研究

目的：为川麦冬蛴螬的防治提供依据。方法：实验观察与田间调查相结合。结果：危害川麦冬的蛴螬主要是灰胸突鳃金龟Ｈｏｐｌｏｓｔｅｒｎｕｓｉｎｃａｎｕｓ、暗黑鳃金龟Ｈｏｌｏｔｒｉｃｈｉａｐａｒａｕｌｅｌａ和铜绿丽金龟Ａｎｏｍａｌａｃｏｒｐｕｌｅｎｔａ。前者两年发生一代，世代重叠，以二、三龄幼虫越冬；后二者每年发生一代，均以三龄幼虫越冬。麦冬受蛴螬的危害程度与麦冬连作年限、间套作模式和土壤类型等因素有关。结论：蛴螬的防治应结合栽培措施以农业防治为主。

Biological Characteristics and Damaging Regularities of Grubs Endangering the Growth of Ophiopogen japonicus (Thunb.) Ker Gawl.

Objective:To provide a scientific basis for prevention and control of the damage done to Ophiopogen japonicus by grubs.Method:Conducting laboratory observation along with field investigation.Result:The grubs endange ring the growth of O.japonicus are mainly Hoplosternus incanus,Holotrichina paraullela and Anomala corpulenta,H.incanus takes two years to make a generation and overwinters in the form of second or third instar larvae.H.parallela and A.corpulenta generate yearly and overwinter in the form of third instar larvae.The extent of the damage done to O.japonicus by grubs is related to such factors as the number of sequential cropping years,the model of intercropping and the type of soil.Conclusion:Prevention and control of the pest grub should be based primarily on proper agricultural (cultivating) measures.