Tariq Kaleem, Noor Mah, Saeed Shafqat, Zhang Hongyu
State Key Laboratory of Agricultural Microbiology, Institute of Urban and Horticultural Pests, Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains, China.
National Key Laboratory of Agromicrobiology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; The Key Laboratory of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
Environ Entomol. 2015 Dec;44(6):1614-8. doi: 10.1093/ee/nvv133. Epub 2015 Aug 18.
Ultraviolet (UV) light has been used worldwide to monitor and trap insect pests. Whitefly adults show conspicuous positive phototactic behavior toward UV light stimuli; however, knowledge of the effect of UV light exposure on various life-history parameters of Dialeurodes citri remains limited. The present research aimed to investigate the effect of ultraviolet radiation (UV-A; long-wave) exposure on the reproduction and longevity of D. citri adults as well as the development of immature (eggs, larvae, and pupae) flies in the F1 generation. Paired D. citri adults were exposed to UV-A radiation for different periods (0, 1, 4, and 7 h/d) until the end of their life. The results of the experiment revealed that fecundity and oviposition rates increased when adults were irradiated for 1 and 4 h/d, but interestingly, both were significantly decreased compared with those of the controls after the longest exposure time (7 h/d). The longevity of adults of both sexes and the cumulative survival of F1 immatures were decreased with increased exposure time. Exposure to UV-A radiation prolonged the developmental time of immature stages, and a positive correlation was observed with exposure time. Exposure to UV light significantly inhibited egg hatching, larval development, pupation, and adult emergence. To the best of our knowledge, this is the first study describing the effect of UV radiation on a homopteran insect pest. This research may provide a foundation for the scientific community to use UV light in the field as an integrated pest management strategy to control this devastating agricultural pest.
紫外线（UV）已在全球范围内用于监测和诱捕害虫。粉虱成虫对紫外线刺激表现出明显的正向趋光行为；然而，关于紫外线照射对柑橘粉虱不同生活史参数的影响的了解仍然有限。本研究旨在调查紫外线辐射（UV-A；长波）照射对柑橘粉虱成虫繁殖和寿命以及F1代未成熟（卵、幼虫和蛹）粉虱发育的影响。将配对的柑橘粉虱成虫暴露于UV-A辐射不同时间段（0、1、4和7小时/天）直至其生命结束。实验结果表明，当成虫每天照射1小时和4小时时，产卵量和产卵率增加，但有趣的是，在最长暴露时间（7小时/天）后，与对照组相比，两者均显著下降。随着暴露时间的增加，两性成虫的寿命和F1代未成熟粉虱的累积存活率均下降。暴露于UV-A辐射延长了未成熟阶段的发育时间，并且观察到与暴露时间呈正相关。暴露于紫外线显著抑制卵孵化、幼虫发育、化蛹和成虫羽化。据我们所知，这是第一项描述紫外线辐射对同翅目害虫影响的研究。本研究可能为科学界在田间使用紫外线作为综合害虫管理策略来控制这种毁灭性农业害虫提供基础。
