梨小食心虫雄蛾的多次交配对雌蛾生殖力的影响  

Effect of multiple mating behavior of Grapholita molesta males on female fecundity

作　　者：王雪丽 何莉梅 张金勇[1] WANG Xueli;HE Limei;ZHANG Jinyong(Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,China;Institute of Urban Agriculture,Chinese Academy of Agricultural Sciences,Chengdu 610218,China)

机构地区：[1]中国农业科学院郑州果树研究所,郑州450009 [2]中国农业科学院都市农业研究所,成都610218

出　　处：《植物保护》2024年第3期176-180,246,共6页Plant Protection

基　　金：中央级公益性科研院所基本科研业务费专项(1610192023301,1610192022203);河南省重点研发与推广专项(232102110070)。

摘　　要：为明确梨小食心虫雄蛾的交配能力等生物学特性,正确评价梨小食心虫性信息素诱杀雄蛾的田间应用效果,本研究借助监控设备观察了梨小食心虫雄蛾与雌蛾的交配时间段、交配持续时间、雄蛾交配次数、雄蛾首次交配及末次交配日龄,研究了雄蛾日龄对交配率的影响,雄蛾交配次数对雌蛾产卵量及卵孵化率的影响。结果表明,梨小食心虫雄蛾能与多头雌蛾交配,且从1日龄至19日龄期间均能与雌蛾交配。随着雄蛾日龄的增加,其与雌蛾交配率降低,雄蛾交配次数的增加对雌蛾产卵量及卵孵化率没有显著影响。因此田间使用性信息素诱杀一定数量的雄蛾对降低后代种群数量有一定的作用,但只有在短时间内将雄蛾数量减少到一定范围内才可起到理想效果。To study the mating ability and other biological characteristics of Grapholita molesta males and to accurately evaluate the field application effectiveness of G.molesta sex pheromone in killing males,monitoring equipment was used to observe the mating time periods,mating durations,mating frequencies and day-age of first and last mating of males,the effect of males day-age on mating rates,and the effect of male mating frequency on female oviposition and egg hatching rates.The results indicated that single male of G.molesta could mate with multiple females and could engage in mating with females ranging from one day-age to 19 day-age.With increasing day-age of male,the mating rate with female decreased,but an increase in male mating frequency did not influence egg yield and egg hatchability.In conclusion,using sex pheromones in the field to kill a certain number of males is helpful in reducing the number of offspring populations,but the ideal effects can only be achieved when the number of males is reduced in a short period of time.

关 键 词：梨小食心虫 产卵 交配次数 交配率 

分 类 号：S436.6[农业科学—农业昆虫与害虫防治]