金纹细蛾飞行能力测定

Determination of the flight capacity of Lithocolletis ringoniella(Lepidoptera:Gracillariidae)

【目的】明确金纹细蛾Lithocolletis ringoniella自身生理状态下的飞行能力,了解其飞行生物学的基础参数。【方法】利用昆虫飞行磨系统,室内测定了金纹细蛾雌雄成虫不同日龄和性别以及5日龄雌雄成虫补充营养(5%蜂蜜水)与交配状态下的飞行距离、飞行时间、飞行速度等参数。【结果】连续吊飞12 h的结果显示,金纹细蛾3-6日龄成虫飞行能力较强,5日龄成虫飞行能力最强;5日龄雌成虫的平均飞行距离、飞行时间和飞行速度分别为2.293±0.254 km,5.341±0.617 h和0.711±0.126 km/h,5日龄雄成虫的平均飞行距离、飞行时间和飞行速度分别为2.142±0.276 km,5.132±0.628 h和0.620±0.132 km/h,说明雌雄成虫间飞行能力差异不显著。金纹细蛾5日龄雌雄成虫取食5%蜂蜜水后其飞行能力较对照显著提高,取食5%蜂蜜水后5日龄雌成虫的飞行距离、飞行时间和飞行速度较对照(取食清水)的分别提高46.945%,15.430%和15.978%;5日龄雄成虫的飞行距离、飞行时间和飞行速度较对照分别提高42.610%,13.590%和6.529%。交配后5日龄雌成虫的飞行距离、飞行时间和飞行速度较未交配雌成虫的分别提高41.628%,7.152%和39.925%,而5日龄雄成虫交配后飞行能力则较未交配雄成虫的分别降低35.823%,17.888%和46.129%。【结论】金纹细蛾成虫具有一定的飞行能力,补充营养和雌雄交配状态对飞行能力有重要影响。

【Aim】To determine the flight capacity of the Asiatic apple leafminer,Lithocolletis ringoniella,under its own physiological state and to understand the basic parameters of its flight biology.【Methods】The flight distance,flight duration and flight speed of different day-old adults of both genders of L.ringoniella,and the 5-d-old female and male adults provided with complementary nutrition(5%honey water)and under different mating states were measured in the laboratory with insect flying mill system.【Results】Subjected to continuous 12 h tethered flight,the 3-6-d-old adults of L.ringoniella had better flight capacity,and the 5-d-old adults had the best flight capacity.The average flight distance,flight duration and flight speed of the 5-d-old female adults were 2.293±0.254 km,5.341±0.617 h and 0.711±0.126 km/h,respectively,and those of males were 2.142±0.276 km,5.132±0.628 h and 0.620±0.132 km/h,respectively,suggesting that the flight capacity is not significantly different between male and female adults.The flight capacities of the 5-d-old male and female adults were significantly improved after being fed with 5%honey water.The flight distance,flight duration and flight speed of the 5-d-old female adults fed with 5%honey water were increased by 46.945%,15.430%and 15.978%,respectively,and those of the 5-d-old male adults were increased by 42.610%,13.590%and 6.529%,respectively,as compared with those in the control(fed with water).After mating,the flight distance,flight duration and flight speed of the 5-d-old female adults were increased by 41.628%,7.152%and 39.925%,respectively,as compared with unmated females,while those of the 5-d-old male adults were decreased by 35.823%,17.888%and 46.129%,respectively,as compared with unmated males.【Conclusion】L.ringoniella adults have a certain flight capacity,which is affected by complementary nutrition and their own mating states.