【摘要】 组建了韭菜迟眼蕈蚊Bradysiaodoriphaga在 15℃、2 0℃、2 5℃和 30℃温度下的实验种群生命表。结果表明 ,韭菜迟眼蕈蚊各虫态的发育速率随温度的升高而加快 ,在 15℃下卵—成虫的发育历期最长 (72 4天 ) ,而 30℃时仅为 2 1 2天 ,2 0℃和 2 5℃时分别为 2 7 3天和 2 3 9天 ;韭菜迟眼蕈蚊卵、幼虫 ,蛹和卵—成虫的发育起点温度分别为 5 9℃、8 7℃ ,3 3℃和 7 8℃ ,有效积温分别为 77 7、2 6 7 2、75 7和 4 18 2日·度 ;韭菜迟眼蕈蚊成虫寿命随温度升高而逐渐缩短 ,雌虫寿命在 2 0℃时最长 ,为 11 7天 ,在 30℃下最短 ,仅存活 4 1天 ,除 30℃外在其它温度下雌蚊寿命均长于雄蚊 ;单雌产卵量在 2 0℃时最高 ,平均为 15 9 9粒 ,30℃时最低 ,为 114 7粒。 2 0℃～ 2 5℃是韭菜迟眼蕈蚊的最适生长温度 ,成虫寿命长、繁殖力强、种群趋势指数大 ,温度过高或过低均不利于种群的繁衍更多还原

【Abstract】 Life tables of laboratory population of the Chinese chive maggot, Bradysia odoriphaga were constructed at four temperatures. The results showed that the developmental rate increased with the temperature increasing from 15℃ to 30℃. The longest duration of the generation was 72.4 days observed at 15℃, the shortest was 21.2 days at 30℃, and in between 27.3 days and 23.9 days at 20℃ and 25℃ respectively. The threshold temperatures and the effective accumulated temperatures required for egg, larva, pupa and whole generation were 5.9℃, 8.7℃, 3.3℃, 7.8℃ and 77.7, 267.2, 75.7, 418.2 degree-day respectively. The lifespan was shortened with the temperature increasing. The longest lifespan of female was 11.7 days at 20℃, and the shortest was 4.1 days at 30℃. In general, the adult longevity of female was longer than that of male. The maximum number of eggs laid per female was 159.9 at 20℃, while the least was 114.7 at 30℃. It could be concluded from the results that temperature had great effect on the development of B. odoriphaga. The most suitable temperature range was 20℃ to 25℃, during which there were longer longevity of the adult,higher oviposition and the highest population trend index. Too high or too low temperatures would be adverse to the establishment of the maggot population.更多还原