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不同日龄及交配前后小菜蛾飞行能力
Preliminary study of the effect of age and mating on the flight ability of the diamondback moth Plutella xylostella
魏书军1**,范潇2,顾耘2,王泽华1,宫亚军,金桂华1,石宝才1***
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DOI:
作者单位:1. 北京市农林科学院植物保护环境保护研究所北京100097;2. 青岛农业大学农学与植物保护学院青岛266109
中文关键词:小菜蛾, 飞行能力, 飞行磨, 寿命, 繁殖能力
英文关键词:Plutella xylostella, flight ability, flight mill, longevity, fecundity
中文摘要:

国内外研究表明小菜蛾Plutella xylostella (L.)具有迁飞现象。飞行能力的测定是了解其迁飞规律的重要基础。本研究利用飞行磨对不同日龄以及交配前后的小菜蛾飞行能力进行了研究。结果表明,不同日龄的小菜蛾雌虫飞行能力有差异,第1日龄飞行能力最弱,第3日龄飞行能力最强,12 h内最大飞行距离为10 546 m,最长飞行时间为11613 h;不同日龄的雄虫的飞行能力差异不明显,最大飞行距离为13 191 m,最长飞行时间为12 h;交配与否对雌雄虫的飞行能力的影响不明显。吊飞对小菜蛾的寿命及繁殖能力有较大的影响,吊飞后的寿命缩短,产卵量减少;吊飞前交配与否对存活及繁殖能力的影响不显著。

英文摘要:The diamondback moth, Plutella xylostella (L.), has been proven to be a migratory pest. The study of its flight ability is essential to understanding its pattern of migration. Here, the flight ability of 1, 3, 5 and 7 day old moths, and mated and unmated moths, were tested using a flight mill in a laboratory. The results show that female moths of different ages had different flight ability. Oneday old moths were the worst fliers, whereas 3 day old moths were the best, with a longest flight distance of 10 546 m and flight duration of 11613 h within 12 successive hours. There was no difference in the flight ability of males of 1, 3, 5 and 7 days of age; their longest flight distance was 13 191 m and flight duration was 12 h. Neither was there any difference in the flight ability of mated and unmated male and female moths. The longevity and fecundity of moths were reduced after flight. However, there was no difference in the postflight longevity and fecundity of mated and unmated moths.
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