摘要
灾害蝗虫光电诱导捕集技术中，致使蝗虫产生良好趋光效率的诱导光源是获取该技术高效应用的关键。为给诱导光源的研制提供最优设计参数，利用自行设计的发光二极管（light emitting diode，LED）阵列波谱光源与光电诱导蝗虫滑移捕集机分别进行了蝗虫趋光行为的对比试验和诱导捕集试验。结果表明：与其他诱导光源相比较，蓝色（465 nm）波谱光源和白色（395～720 nm）波谱光源均能促使蝗虫产生较为明确的趋向选择行为且具有相对较高的趋向运动速度，最终诱使较多的蝗虫集聚于诱导光源区域；气扰刺激能够激发处于栖息状态蝗虫的生理活性，促使蝗虫对波谱光源产生较强的趋向行为并表现出较高的趋向运动速度。气扰刺激与波谱光源的耦合作用可使蝗虫的趋光行为同时具有明确的方向选择性、较强的趋向运动持续性和较高的趋向运动速度，能够显著提高波谱光源对灾害蝗虫的诱导率，并能提高光电诱导蝗虫滑移捕集机对灾害蝗虫的捕集效率和捕集总量。研究结果为光电诱导蝗虫捕集技术中诱导光源的研制提供了设计参数方面的参考。
Control for locusts traditionally replies on chemical insecticide. However, the chemical insecticide has lead to serious environment pollution. A growing awareness of the environmental issues associated with insecticide control has expanded the demand for technologies that can not only control the plague locusts but also avoid the pollution. One of the recently proposed technologies is photoelectric inducing-trapping plague locust based on the phototaxis property of locusts. For the application of this technology, to obtain a light source that can induce high phototaxis efficiency for locusts is a key to high efficiency of locust trap. Therefore, this study compared phototaxis behaviors of locusts with respect to different wavelengths （465 nm, 520 nm, 630 nm, and 395-720 nm） using Light Emitting Diode （LED） arrays as light sources and the photoelectric inducing-trapping plague locust machine designed by ourselves in a locust phototactic behavior experiment and a locust inducing-trapping experiment in order to provide optimized parameters for design of light source. The experiments were carried out at 20：00-21：00 pm （60 min） in a locust （Locusta migratoria manilensis） breeding area of Shijiazhuang, China. During the test of locust phototactic behaviors, an air disturbance stimulation source （air blower） was utilized as supplementary of the light sources. Phototactic moving displacement, average phototactic moving velocity, inducing ratio, inducing efficiency and capturing ratio were determined to evaluate the phototactic property of locust and the trapping efficiency of photoelectric inducing-trapping plague locust machine with stimulations of different-spectra light source and air disturbance source. Results showed that compared with the other light sources, blue （465 nm） and white （395-720 nm） light had induced locust movement in a clearer direction and at a higher velocity, and hence more locusts gathered around the light sources. Air disturbance stimulation could activate the physiology activity of locusts, and result in strong phototaxis behaviors of locusts and high phototactic movement velocity. Combined with air disturbance stimulation, the white and blue light source could induce phototactic movement of locusts at an average moving velocity of 2.79 and 3.18 m/min, and had the inducing ratio of 50.9%and 54.3%, respectively. Moreover, the capturing ratio of locusts using the photoelectric inducing-trapping plague locust machine reached as high as 40.6% and 43.5%, respectively. The coupling effect of air disturbance stimulation and light source could induce the locusts’ phototactic behaviors of clear directional selection and strong movement continuity, which could not only improve the phototaxis efficiency of light source, but also enhance the locust capturing efficiency and locust capturing amount of photoelectric inducing-trapping machine. The results here provided valuable information for optimizing design of light source in the technology of photoelectric inducing-trapping plague locust, and provided an idea of developing equipments for control of the other agricultural insects.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2014年第5期108-115,共8页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学青年基金资助项目(51205107)
河北科技大学博士科研启动基金资助项目(QD201238)
关键词
害虫防治
光谱
试验
蝗虫
趋光行为
光电诱导捕集技术
气扰刺激
pest control
spectroscopy
experiments
locust
phototactic behaviors
photoelectric inducing trapping technology
air disturbance stimulation
