荔枝蒂蛀虫成虫对LED光的趋性及其繁殖响应特征
Study on the photobehavioral and reproductive response of Conopomorpha sinensis adults to LED light
投稿时间:2021-09-01  修订日期:2021-10-01
DOI:
中文关键词:  荔枝蒂蛀虫  LED光  光行为反应  繁殖
英文关键词:Conopomorpha sinensis Bradley  LED light  Photobehavioral response  Reproduction
基金项目:财政部和农业农村部国家现代农业产业技术体系专项(CARS-32);国家自然科学基金(32102222);广东省农业科学院院长基金专项(201936);广东省荔枝产业攻关示范项目(403-2018-XMZC-0002-90);广东省现代农业产业技术体系绿色发展共性关键技术研发创新团队项目(2020KJ112)
作者单位地址
全林发 广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室 广东省广州市天河区金颖路7号
李文景 广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室 
董易之 广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室 
王凤英 广西农业科学院植物保护研究所/广西作物病虫害生物学重点实验室 
池艳艳 广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室 
陈炳旭 广东省农业科学院植物保护研究所/广东省植物保护新技术重点实验室 广东省广州市天河区金颖路7号
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中文摘要:
      为明确荔枝蒂蛀虫Conopomorpha sinensis成虫对不同LED光的趋性行为反应,初步筛选出该虫趋光性不同的光色并进一步研究其对成虫繁殖生物学特性的影响,以期为今后研发出特异性强且绿色高效的荔枝蒂蛀虫灯光防控技术提供理论依据。本试验采用对比实验法,测试了荔枝蒂蛀虫雌蛾对9种供试光源的趋性行为反应,并进一步研究夜间LED光照射对荔枝蒂蛀虫成虫交配率、繁殖力及寿命的影响。结果显示,荔枝蒂蛀虫雌成虫对不同LED光的趋光反应率由高到低为:蓝(445-450 nm)>紫(400-405 nm)>红(655-665 nm)>蓝绿(475-480 nm)>橙(600-605 nm)>绿(515-520 nm)>黄(570-575 nm)>白(400-700 nm)>黑暗>紫外(365 nm),试虫对紫外光表现出明显的避光性,对7种单色光表现为不同程度的趋光性,其中对黄光和白光的趋光率在50%以下。在繁殖生物学方面,夜间50 lx的LED黄光和白光持续照射能使荔枝蒂蛀虫成虫的交配率由93.75%降低至50%以下,且产卵前期延长,雌蛾产卵量显著降低。此外,夜间不同LED光源照射能抑制已交配荔枝蒂蛀虫雌蛾产卵活动,白光照射组的单雌日均产卵量降低最大,为50.71%,黄光次之(48.96%),蓝光最小,为38.06%。综上所述,荔枝蒂蛀虫雌蛾对LED白光和黄光的趋光性较弱,夜间适当的LED白光(400-700nm)和黄光(570-575nm)持续照射可有效降低成虫交配率和繁殖力,该结果对促进LED白光干扰防控荔枝蒂蛀虫技术的优化升级具有一定指导意义。
英文摘要:
      To clarify the photobehavioral and reproductive responses of Conopomorpha sinensis adults to different LED light, so as to provide theoretical basis for the development of highly specific, green and efficient light control technology of C.sinensis in the future. In this experiment, the photobehavioral responds of C.sinensis female to 9 kinds of light sources was tested by comparative experiment, then we further studied the effects of LED light exposure at night on the mating rate, fertility and longevity of the C.sinensis adults. Results: From high to low, the phototaxis response rate of the C.sinensis female were: blue light, red light, green light, purple light, blue-green light, orange light, yellow light, white light, dark and ultraviolet light. Among them, the female showed obvious photophobia to ultraviolet light and phototaxis to 7 kinds of LED light, in which the phototaxis to yellow and white light were less than 50%. In terms of reproductive biology, 50 lx yellow and white light at night can reduce the mating rate of C.sinensis adults from 93.75% to less than 50%, prolong the preoviposition period and significantly reduce their oviposition. In addition, LED light irradiation at night could inhibit the oviposition of mated female. The daily average oviposition of per female in the white light irradiation decreased the most by 50.71%, followed by yellow light (48.96%), and blue light was the least (38.06%). In conclusion, The C.sinensis female has weak phototaxis to white light and yellow light, Appropriate irradiation of white light (400-700nm) or yellow light (570-575nm) at night can effectively reduce the mating rate and fecundity of adults. The results have certain guiding for optimization and upgrading of LED white light interference in control of C.sinensis.
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