三代玉米螟卵峰日与气象条件的关系及预报模式的研究

A Study on the Forecast Mode and the Relationship Between the G3 Maize Borer's Egg Peak Date and Meteorological Conditions

利用24年的资料,研究了三代玉米螟与气象条件的关系,确定了温度是影响卵峰日早晚的主导因素。6～7月是温度影响三代玉米螟卵峰日的关键时段,平均气温、最高气温和5cm地温均是影响卵峰日的关键因子。日照时数偏少,降水量偏大,均对玉米螟发育进程有一定的延缓作用。所建立的预报模式,经试报效果较好。

Having made use of 24-year data, this paper has studied the relationship between G3 maize borers and meteorological conditions and ascertained that temperature is the dominant factor affecting the time of egg peak date. June and July are the critical period of time of temperature affecting the G3 maize borer's egg peak date. The average air temperature, the highest air temperature, and 5-cm ground temperature are all crucial genes affecting the G3 maize borer's egg peak. Too few fours of sunlight and too much precipitation will both retard the growth process of the maize borers. The forecast mode based on the above research has turned out well.