梨小食心虫对LED光的趋性及影响因素的研究  

Phototaxis of the oriental fruit moth,Grapholita molesta( Lepidoptera: Tortricidae) to LED lights and related affecting factors

作　　者：刘彦飞[1] 于海利[1] 仵均祥[1] 

机构地区：[1]植保资源与害虫治理教育部重点实验室,西北农林科技大学应用昆虫学重点实验室,杨凌712100

出　　处：《应用昆虫学报》2013年第3期735-741,共7页Chinese Journal of Applied Entomology

基　　金：公益性行业(农业)科研专项(201103024)

摘　　要：为了明确梨小食心虫对LED光的趋性及果园利用LED光诱捕梨小食心虫的效果，为开发基于梨小食心虫趋光行为的新防治手段提供依据。本研究通过室内观察梨小食心虫成虫对不同波长的4种LED光及白光的趋性及暗适应时间、性别、日龄和光照强度对趋光性的影响，进一步调查了LED光对田间梨小食心虫成虫的诱捕效果。结果表明：在室内条件下，梨小食心虫成虫对520nm的绿光趋性最强。1-5日龄成虫中，以3日龄成虫趋光性最强，且雌虫趋光性显著高于雄虫。在暗适应0.5-3.0h范围内，梨小食心虫成虫的趋光性表现为“抛物线形”，以暗适应2.0h时趋光性最强，并显著高于其它暗适应处理时间。在550、650、750、850Lux光照强度下，以650Lux光强时的趋光性最强。田间诱捕结果表明，不同颜色的LED灯对梨小食心虫的诱捕效果均不理想，不适于梨小食心虫的防治。A better understanding of phototaxis is essential for developing new control measures for pests such as the oriental fruit moth, Grapholita molesta Busck. We investigated the phototaxis of this pest to LED light of different wavelengths and the effects on phototaxis of dark adaptation time, gender, age and light intensity in orchards. The results show that the oriental fruit moth was most attracted by green LED light at a wavelength of 520 nm. Among 1-5 day-old adults, 3 day-old adults displayed the strongest phototaxis. The phototaxis of female adults was significantly higher than that of male adults of the same age in all experiments with the same wavelength of LED light. The phototaxis of the oriental fruit moth was of a parabolic-type with a dark adaptation time of 0.5-3.0 h. The strongest phototaxis was found after a dark adaptation time of 2.0 h and at a light intensity of 650 lx. Field experiments showed that the LED lights tested were not sufficiently effective lures to control the oriental fruit moth in orchards.

关 键 词：梨小食心虫 LED光 趋光性 诱捕效果 

分 类 号：S436.6[农业科学—农业昆虫与害虫防治]