不同光源和暗适应时间对棉铃虫蛾趋光行为的影响

1　引　　言诱虫灯是监测昆虫迁飞、扩散、发生期和发生量的重要工具 ,也是害虫综合治理的重要措施之一 .一般认为 ,昆虫飞向光源是一种趋光行为 ,但国内外很多学者认为这种行为是光源对昆虫正常活动的干扰 ,并非是昆虫的趋性4 ].昆虫对不同波长的光源反应不同 .丁岩钦6 ]对棉铃虫蛾 (Helicover paarmigera)进行了 1 3种单色光的行为选择实验 ,最高峰在333nm ;侯无危等9]对桃小食心虫 (Carposinaniponensis)的趋光性研究发现 ,其对 333nm以上的单色光均有趋光反应 .魏国树等12～ 14 ]在 340～ 6 0 5nm波谱范围内测定了棉铃虫蛾的行为反…

Effects of different light source and dark-adapted time on phototactic behavior of cotton bollworms (Helicoverpa armigera )

In this paper, the phototactic behaviors of different emergence period Helicoverpa armigera were studied in a phototactic box. The results showed that under the five test wavelength lights, different emergence period female and male moths had no significant difference in their phototactic behaviors. The phototactic rate differed significantly when the dark-adapted time was between 15 and 30 min, but had no significant difference among 30, 45 and 60 min. No significant difference was also found in phototactic rate between dark-adapted time 0 and 15 min under test wavelength lights except green one (500-565 nm).