摘要
以杨梅园等果园害虫黑腹果蝇(Drosophila melanogaster)及其蛹期寄生蜂蝇蛹俑小蜂(Spalangia endius)为对象,在温度25±1℃、相对湿度(60±5)%以及光周期14L:10D的室内条件下,构建了蝇蛹俑小蜂实验种群生命表.结果表明雌蜂和雄蜂的成蜂寿命分别为17.28±5.29d和17.97±6.76d,平均每头雌蜂有60.31±35.08个后代,后代中雄性百分比为(28.08±13.29)%.雌雄蜂羽化后的生命期望分别为16.78d和17.47d.在实验条件下,蝇蛹俑小蜂种群内禀增长率(rm)和周限增长率(λ)分别为0.14±0.0009和1.16±0.001;净生殖率(R0)为45.17±1.05;世代时间(T)和种群倍增时间(DT)分别为26.31±0.07d和4.79±0.03d.研究表明,蝇蛹俑小蜂在实验室条件下可以利用黑腹果蝇完成生活史,对果蝇存在控制效果.
Life table of the pupal parasitoid Spalangia endius was obtained on the pupae o f Drosophila melanogaster ,a pest insect in such orchard as Chinese bayberries, at temperature （25 ± 1℃ ）,relative h um id ity （60% ± 5）,and a set l ight： dark photoperiod （ 14： 10）. The results showed that longevity of adult female and male parasitoids was 17.28 ± 5.29d and 17.97 ± 6.76d, respectively. The total number of S . endius offspring throughout a life time was 60.31 ±35.08, and the male proportion was 28.08% ±13.29. L ife expectancy of adult female and male parasitoids was 16.78d and 17.47d , respectively. The in tr in s ic natural increase （ rm ） and finite rate of increase of S . endius was 0.14 ± 0.0009 and 1.16 ± 0.001,and th e ir net reproductive rate （R0） was 45.17 ± 1.05. The mean generation time （T ） and doubling tome （DT ） was 26.31 ± 0.07d and 4.79 ± 0. 03d , respectively. Our results suggested that S . endius could finish life his tory with the fruit fly pupae as hosts in the laboratory condition, and would have positive effects on the control of fruit flies.
出处
《安徽师范大学学报（自然科学版）》
CAS
2017年第3期255-259,共5页
Journal of Anhui Normal University(Natural Science)
基金
国家自然科学基金(31672351
31172145)
安徽省自然科学基金(1408085MKL24)
校优秀毕业论文培育计划项目(pyjh2015326)
关键词
寄生蜂
果蝇
生命表
种群增长
生物防治
Parasitoid wasps
fruit flies
l ife ta b le
population increase
biological control
