温、湿度综合效应对粘虫蛾飞行能力的影响

采用D—饱和最优理论设计系统研究了不同温、湿度组合对粘虫蛾飞行能力的影响以及其与不同蛾龄、性别成虫飞行能力之间的关系。拟合的5日龄蛾吊飞12h的飞行距离与温、湿度的回归方程式为：Y^＝60．20-16．53X1 1．99X2—26．98X1^2-7．03X2^2—0．64X1X2(Y^代表飞行距离(km)，Xl代表温度编码值，X2代表相对湿度编码值)。粘虫蛾飞行的最适温、湿度分别为18．1℃、69．7％RH，适于成虫飞行的适宜温度范围为18—26℃，相对湿度范围为55％-75％，高于或低于这些范围，成虫飞行能力便会受到不利的影响，并且温度对粘虫蛾飞行的影响要比湿度大。这与单因素试验(温度或湿度)结果基本一致。成虫飞行能力受温、湿度影响程度会因蛾龄及性别而异，高日龄成虫在高温、低湿的条件下飞行能力较低日龄成虫弱。雌蛾在高温条件下的飞行能力比雄蛾强，而雄蛾在不适宜的湿度条件下飞行能力较雌蛾强。

Influences of temperature and humidity synthesize on flight capacity in the moth s of Oriental armyworm,Mythimna separata(Walker)

The Oriental armyworm Mythimna separata (Walker) is a long distance migrator y insect, it has a stronger flight potential whose longest flight distance can r each 1400 km according to the results of Insect mark-Release-Recapture techniq ues. In laboratory it also exhibited stronger flight potential relative to other well known migratory noctuids using tethered-flight, the largest flight dis tance and flight duration exceed 430 km and 40 hours respectively. Although the study on flight capacity affected by...