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目的淡色库蚊是班氏丝虫病的主要传播媒介,了解淡色库蚊的飞行行为,为淡色库蚊的防治提供科学依据。方法采用吊飞技术对淡色库蚊实验室种群进行吊飞,设置为雌成虫1～10、15、20、25日龄,雄成虫为1～10日龄,每组至少10只试虫,采用单次最远飞行距离、单次最久飞行时间和单次最远飞行平均速度3项参数对不同性别淡色库蚊的飞行行为进行比较。结果对淡色库蚊的成蚊吊飞研究发现,雌雄蚊的单次最远飞行距离差异无统计学意义(F=2.66,P=0.1044);淡色库蚊在各个日龄之间的单次最远飞行距离差异有统计学意义(F=2.15,P=0.0148);淡色库蚊性别和日龄的交互作用对单次最远飞行距离也有显著影响(F=2.00,P=0.0397);淡色库蚊雌虫各个日龄之间的单次最远飞行距离差异有统计学意义(F=2.42,P<0.01);淡色库蚊雌蚊各日龄之间的单次最久飞行时间差异有统计学意义(F=2.91,P<0.01);研究发现,淡色库蚊雌蚊羽化后的首次扩散距离高峰期(4日龄)、飞行能力低谷期(5、6日龄)、第2次扩散高峰期(7日龄)与雌蚊首次吸血高峰日龄、卵巢发育成熟的时间、卵发育成熟以后开始产卵的活动时间基本一致;雌虫羽化后7日龄的第2次扩散高峰期对确定雌蚊产卵范围有较大借鉴意义;雌蚊在20日龄的扩散能力峰值对确定班氏丝虫病传播过程中雌蚊的第2次吸血活动范围有重要参考意义。结论淡色库蚊不同日龄之间的飞行能力有较明显差异,这种差异与淡色库蚊的生物学习性有较高的一致性,对指导班氏丝虫病的防控有较大的参考价值。
Objective Culex pipiens pallens is the main transmission medium of Bancroftian filariasis, understand the flight behavior of Culex pipiens pallens, and provide a scientific basis for the prevention and control of Culex pipiens pallens. Methods The hang-fly technique was used to suspend the laboratory population of Culex pipiens pallens, which was set at 1 to 10, 15, 20 and 25 days of age for female adults. The male adults were from 1 to 10 days old with at least 10 insects in each group. Single farthest flight distance, the longest flight time and the single farthest flight average speed of three parameters of Culex pipiens pallens flight sex comparison. Results The results showed that there was no significant difference in flies flies between Culex pipiens pallens and adults (F = 2.66, P = 0.1044). The single most frequent fly between Culex pipiens pallens (F = 2.15, P = 0.0148). The interaction between sex and age of Culex pipiens pallens also had a significant effect on the single farthest flight distance (F = 2.00, P = 0.0397) The single farthest flight distance between mosquito and females was statistically significant (F = 2.42, P <0.01). There was statistical difference between the single flight durations (F = 2.91, P <0.01). The results showed that the first diffusion distance (4 days), the low ability of flight (5 and 6 days old), the second diffusion The peak period (7-day-old) was the same as the first day of female vampire’s first vampire-sucking, the time of ovary maturation, and the time of oviposition after the egg matured. The peak of the second diffusion of 7-day-old females Female mosquitoes to determine the scope of spawning a greater reference; female mosquito at 20 days of peak diffusion capacity to determine the transmission of Bancroftian filariasis female mosquito 2 Sub-vampire range of activities has an important reference value. Conclusion The flight ability of Culex pipiens pallens has obvious difference between different days of age, which is in good agreement with the biological behavior of Culex pipiens pallens. It is of great reference to the prevention and control of Bancroftian filariasis value.