白背飞虱Sogatella furcifera(Horvath)在我省为害水稻渐趋严重,尤以早稻后期受害最重,损失较大。掌握白背飞虱的产卵习性,对于了解发生动态,搞好测报和指导防治是很重要的。现将我们1980—1981年有关产卵习性初步研究结果报道如下。 一、成虫产卵特性 1.成虫产卵时间和部位 各代观察成虫3—7对,每隔2小时检查一次产卵数,结果全天皆能产卵,但白天多于夜间。 White-backed planthopper Sogatella furcifera (Horvath) has become more and more harmful to rice in our province, especially in the latter part of early rice. Grasp the spawning habits of Sogatella furcifera, it is important to understand the occurrence of dynamic, do a good job reporting and guiding prevention and treatment. The results of our preliminary study on spawning habits from 1980 to 1981 are reported below. First, adult oviposition characteristics 1 adult ovipositing time and parts of the adult observation 3-7 pairs, check the number of eggs every 2 hours, the results all day can spawn, but more during the day than at night.