title: Adult Tea Green Leafhoppers, Empoasca onukii (Matsuda), Change Behaviors under Varying Light Conditions.
abstract: Insect behaviors are often influenced by light conditions including photoperiod, light intensity, and wavelength. Understanding pest insect responses to changing light conditions may help with developing alternative strategies for pest control. Little is known about the behavioral responses of leafhoppers (Hemiptera: Cicadellidae) to light conditions. The behavior of the tea green leafhopper, Empoasca onukii Matsuda, was examined when exposed to different light photoperiods or wavelengths. Observations included the frequency of locomotion and cleaning activities, and the duration of time spent searching. The results suggested that under normal photoperiod both female and male adults were generally more active in darkness (i.e., at night) than in light. In continuous darkness (DD), the locomotion and cleaning events in Period 1 (7:00-19:00) were significantly increased, when compared to the leafhoppers under normal photoperiod (LD). Leafhoppers, especially females, changed their behavioral patterns to a two day cycle under DD. Under continuous illumination (continuous quartz lamp light, yellow light at night, and green light at night), the activities of locomotion, cleaning, and searching were significantly suppressed during the night (19:00-7:00) and locomotion activities of both females and males were significantly increased during the day (7:00-19:00), suggesting a shift in circadian rhythm. Our work suggests that changes in light conditions, including photoperiod and wavelength, can influence behavioral activities of leafhoppers, potentially affecting other life history traits such as reproduction and development, and may serve as a method for leafhopper behavioral control.
authors.affiliation: Institute of Applied Ecology and Research Centre for Biodiversity and Eco-Safety, Fujian Agriculture and Forestry University, Fuzhou, China.|Fujian-Taiwan Joint Innovation Centre for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China.|Key Laboratory of Integrated Pest Management of Fujian and Taiwan, China Ministry of Agriculture, Fuzhou, China.
authors.forename: Longqing
authors.initials: L
authors.lastname: Shi
authors.affiliation: Institute of Applied Ecology and Research Centre for Biodiversity and Eco-Safety, Fujian Agriculture and Forestry University, Fuzhou, China.|Fujian-Taiwan Joint Innovation Centre for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China.|Key Laboratory of Integrated Pest Management of Fujian and Taiwan, China Ministry of Agriculture, Fuzhou, China.|Department of Biological Sciences, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, ON L2S 3A1, Canada.
authors.forename: Liette
authors.initials: L
authors.lastname: Vasseur
authors.affiliation: Quanzhou Entry-exit Inspection and Quarantine Bureau of People's Republic of China, Quanzhou, China.
authors.forename: Huoshui
authors.initials: H
authors.lastname: Huang
authors.affiliation: Institute of Applied Ecology and Research Centre for Biodiversity and Eco-Safety, Fujian Agriculture and Forestry University, Fuzhou, China.|Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, China.
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Zeng
authors.affiliation: Jiangxi Serculture and Tea Research Institute, Nanchang County, Nanchang City, Jiangxi Province, People's Republic of China.
authors.forename: Guiping
authors.initials: G
authors.lastname: Hu
authors.affiliation: Institute of Applied Ecology and Research Centre for Biodiversity and Eco-Safety, Fujian Agriculture and Forestry University, Fuzhou, China.|Fujian-Taiwan Joint Innovation Centre for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China.|Key Laboratory of Integrated Pest Management of Fujian and Taiwan, China Ministry of Agriculture, Fuzhou, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.affiliation: Institute of Applied Ecology and Research Centre for Biodiversity and Eco-Safety, Fujian Agriculture and Forestry University, Fuzhou, China.|Fujian-Taiwan Joint Innovation Centre for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, China.|Key Laboratory of Integrated Pest Management of Fujian and Taiwan, China Ministry of Agriculture, Fuzhou, China.
authors.forename: Minsheng
authors.initials: M
authors.lastname: You
mesh_terms: D000818:Animals; D001070:Appetitive Behavior / Q000528:radiation effects; D001522:Behavior, Animal / Q000528:radiation effects*; D002940:Circadian Rhythm; D005260:Female; D006120:Grooming / Q000528:radiation effects; D006430:Hemiptera / Q000502:physiology* / Q000528:radiation effects*; D007300:Insect Control; D008027:Light; D008124:Locomotion / Q000528:radiation effects; D008297:Male; D017440:Photoperiod; D014741:Video Recording