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斑翅果蝇(Drosophila suzukii Matsumura,1931)是樱桃、葡萄等软皮水果上的重要害虫。本文在室内实验条件下对斑翅果蝇生物学特性进行了较为系统研究。结果表明:斑翅果蝇在6~18点羽化百分率达80.17%,羽化后20~41.5 h(29.51±1.34 h)开始交配。成虫寿命、产卵与温度密切相关,补充营养能显著延长成虫寿命。斑翅果蝇生长、发育和繁殖的适宜温度为22~25℃。22℃和25℃时平均产卵量分别为407.07粒和516.38粒。发育起点温度和世代有效积温分别为10.90℃和154.16日度。温度与发育历期呈显著的负相关(r=-0.901)。本研究为斑翅果蝇风险评估、检疫处理以及田间防治技术研究提供了重要的基础资料。
Drosophila suzukii Matsumura (1931) is an important pest on soft-skinned fruits such as cherries and grapes. In this paper, the biological characteristics of Drosophila melanogaster were systematically studied under laboratory conditions. The results showed that the percentage of eclosion of Drosophila melanogaster was 80.17% at 6 ~ 18 points, and began to mate 20 ~ 41.5 h after emergence (29.51 ± 1.34 h). Adult life expectancy, spawning and temperature are closely related to nutritional supplements can significantly extend adult life expectancy. Drosophila melanogaster growth, development and reproduction of the appropriate temperature is 22 ~ 25 ℃. The average fecundity at 22 ℃ and 25 ℃ were 407.07 and 516.38, respectively. Developmental starting temperature and generation effective accumulated temperature were 10.90 ℃ and 154.16 days respectively. There was a significant negative correlation between temperature and developmental duration (r = -0.901). This study provided important basic information for the risk assessment of Drosophila melanogaster, quarantine treatment and field control technologies.