关键词: 韭菜迟眼蕈蚊, LED光源, 求偶行为, 交配行为, 繁殖力

Abstract: 【Aim】 This study aims to clarify the effects of LED lights at different wavelengths on the reproductive behaviors such as courtship, mating and reproduction of Bradysia odoriphaga. 【Methods】 The behaviors of courtship and mating, the number of eggs laid per female, the egg hatching rate and the number of effective offspring of B. odoriphaga under six different LED lights (red, 625-630 nm; orange, 600-605 nm; yellow, 590-595 nm; green, 525-530 nm; blue, 455-460 nm; and white, 6 000-6 500 k) were observed and recorded. 【Results】 The precalling period of B.odoriphaga was the longest under orange light (28.48 min). The calling rate was the highest under blue light (86%), while was the lowest under orange light (48%). The mating period was the longest under blue light (4.59 min), and was lower under orange light (4.23 min). The number of eggs laid per female had no significant difference between the control group and any experimental group. The egg hatching rate was the lowest under blue light (43.41%). The number of effective offspring was the lowest under blue light (27.00) and was lower under orange light (43.40). 【Conclusion】 The wavelength of LED lights may influence the reproductive behaviors of B. odoriphaga. The orange LED light (600-605 nm) is detrimental to its courtship, mating behaviors and reproduction. Blue LED light (455-460 nm) is beneficial to its courtship and mating behaviors, but significantly restrains its reproduction.  

Key words: Bradysia odoriphaga, LED light, courtship behavior, mating behavior, fecundity