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随着玉米面积的扩大,桃蛀螟Dichocrocispunctiferalis Guenee已上升为玉米的主要害虫,其发生量超过玉米螟和高粱条螟。为制订测报方法和防治对策,笔者于1989年固定3块春玉米田和7块夏玉米田,从抽雄开始,5天一次,每次每块田顺序调查50株,逐株检查玉米各个部位桃蛀螟的虫量,直到玉米成熟为止。对
As maize area has expanded, Dichocrocispunctiferalis Guenee has risen to become a major maize pest, which occurs more than maize borer and sorghum borer. In order to formulate the method of reporting and prevention and control measures, the author fixed three spring corn fields and seven summer corn fields in 1989. From the beginning of tasseling, once in five days, each field investigation of each field 50, by plant inspection of various parts of corn peach Chilo suppressalis insects until the corn mature. Correct