东亚飞蝗光电诱导的气吸捕集效应研究

为给蝗虫趋光捕集装置的研制提供技术支持，利用光照作用下蝗虫气吸滑移捕集试验装置，测试了蝗虫趋光气吸滑移捕集效果，分析了蝗虫趋光响应原因，探讨了蝗虫趋光气吸滑移捕集机理。结果表明：蝗虫视觉定向有效激发的光照诱导信息是蝗虫趋光响应的前提，频闪交变光照有效控制蝗虫行为取向、增强蝗虫趋光视觉敏感性及激发视觉敏锐性是其趋光响应的诱因，且蝗虫趋光视觉活性效应激发基础上，频闪交变偏振光强化蝗虫趋光视觉行为响应的敏感性，蝗虫响应偏振恒定光照的弱敏感性可通过提高光照强度来增强；6 m·s-1捕集入口负压风速气吸趋光蝗虫捕集进入的有效实现，需要蝗虫趋光敏感行为的激发，且在0～50 mm距离内增效显著，可有效激发蝗虫生物摩擦控制的趋光调控行为敏感性，加速蝗虫趋光滑移捕集行为的实现；6 m·s-1捕集入口负压风速、15°倾斜调控光照形成的偏振光可有效促使30°滑移面上蝗虫视觉敏感响应，弱化蝗虫滑移摩擦控制效应，增强趋光捕集行为调控强度，增效趋光捕集效果，相应趋光捕集率达到85%。

Study on the phototactic sucking and trapping regulation effect of Locusta migratoria stimulated by light and air|suction

To provide theoretical foundation for the manufacturing of mechanical trapping devices of locusts induced by light， the tests were performed to investigate the influence of light and air|suction on locusts phototactic sliding trap effect， using the testing device of the phototactic slipping of locusts and trapping behavior effect stimulated by light and air|suction， and analyze the reason of locusts phototactic response to discuss the mechanism of locusts phototactic sucking and slipping capture. The results showed that it was the premise of locusts phototactic response that photo|induction information can stimulate locust visual system to orient to optical target effectively， and it was the cause of locusts phototactic response that flashing and alternating light regulates locusts behavior orientation correctly to strengthen locusts phototactic sensibility and stimulate the locusts visual behavior acuity. Moreover， after arousing locusts phototactic visual activity stimulated by light effectively， the polarized light of the flashing and alternating light characteristics intensified the sensibility of locusts phototactic behavior response， and the weaker sensitivity of locusts phototactic response to polarized light of constant light characteristics could be enhanced through increasing light intensity. The good realization of the phototactic locusts entering the trapping channel sucked by the sucking wind speed of 6 m·s-1 at capture inlet needs the stimulation of the locusts phototactic sensitivity behavior， and the synergistic effect of the suction effect at 0-50 mm was significant. Simultaneously， the suction effect could effectively stimulate locusts phototactic regulatory sensitivity controlled by the biological friction effect， to accelerate to realize locusts phototactic sliding capture behavior. Furthermore， the polarized light， formed by 15° inclined regulating light with 33 Hz flashing and 640 ms alternating light passing through ordinary glass， with the sucking wind speed of 6 m·s-1 at capture inlet， can effectively promote the phototactic visual sensitive response， weaken locust sliding friction control effect， enhance the regulation intensity of locusts phototactic trapping behavior， and beneficiate locust phototactic trapping effect， which result in the phototactic capture rate of 85%.