Effects of operational sex ratio, mating age, and male mating history on mating and reproductive behavior in Grapholita molesta

文献类型： 外文期刊

第一作者： Kong, Weina

作者： Kong, Weina;Wang, Yi;Guo, Yongfu;Chai, Xiaohan;Ma, Ruiyan;Kong, Weina;Wang, Yi;Li, Jie

作者机构：

关键词： male mating histories; mating age; mating propensity; mating system; operational sex ratio; oriental fruit moth

期刊名称：BULLETIN OF ENTOMOLOGICAL RESEARCH （ 影响因子：1.75； 五年影响因子：2.007 ）

ISSN： 0007-4853

年卷期： 2021 年 111 卷 5 期

页码：

收录情况： SCI

摘要： The short-lived polygamous moth Grapholita molesta (Busck) is an important fruit pest worldwide. Trapping males by synthetic female sex pheromones is not an effective reproductive control strategy. It is important to improve this technology by understanding the mating system of G. molesta. This study investigated mating opportunities and fertile egg production by altering the operational sex ratio, mating age, and male mating history in repeated single mating and multiple mating in the two sexes. Our results showed that the mating and reproductive parameters of virgin males were affected by the number and age of virgin females. Males preferred a female number <= three-fifths of the male number or <= 2-day-old females, while they discriminated against a female number >= three times of the male number or >= 5-day-old females. On the other hand, the mating and reproductive parameters of virgin females were affected by repeated single mating and especially multiple mating under different male mating histories. Females preferred once-mated males and discriminated against virgin males. These results indicated that mating systems including more and older virgin females for virgin males and different virgin males for virgin females may be suitable for suppressing G. molesta populations. Hence, these results revealed that preventing mating of virgin adults by synthetic female sex pheromones should be most effective in controlling G. molesta.

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