Yu Chendi, Huang Jun, Ren Xiaoyun, Fernández-Grandon G Mandela, Li Xiaowei, Hafeez Muhammad, Lu Yaobin
State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China.
University of Greenwich, Natural Resources Institute, Chatham Maritime, Kent, UK.
PeerJ. 2021 Jul 21;9:e11818. doi: 10.7717/peerj.11818. eCollection 2021.
Oviposition site selection is an important factor in determining the success of insect populations. spp. are widely used in the biological control of a wide range of soft-bodied insect pests such as thrips, aphids, and mites. (Heteroptera: Anthocoridae) is the dominant species in southern China; however, what factor drives its selection of an oviposition site after mating currently remains unknown.
Here, kidney bean pods (KBPs) were chosen as the oviposition substrate, and choice and nonchoice experiments were conducted to determine the preferences concerning oviposition sites on the KBPs of . The mechanism of oviposition behavior was revealed through observation and measurement of oviposition action, the egg hatching rate, and the oviposition time.
We found that preferred the seams of the pods for oviposition, especially the seams at the tips of the KBPs. Choice and nonchoice experiments showed that females did not lay eggs when the KBP tail parts were unavailable. The rates of egg hatching on different KBP parts were not significantly different, but the time required for females to lay eggs on the tip seam was significantly lower. Decreased oviposition time is achieved on the tip seam because the insect can exploit support points found there and gain leverage for insertion of the ovipositor.
The preferences for oviposition sites of are significantly influenced by the topography of the KBP surface. Revealing such behavior and mechanisms will provide an important scientific basis for the mass rearing of predatory bugs.
产卵场所的选择是决定昆虫种群成功的一个重要因素。 物种被广泛用于对蓟马、蚜虫和螨虫等多种软体害虫的生物防治。 （半翅目：花蝽科）是中国南方的优势物种；然而，目前尚不清楚交配后驱动其选择产卵场所的因素是什么。
在这里，选择菜豆荚作为产卵基质，进行了选择和非选择实验，以确定 对菜豆荚上产卵场所的偏好。通过观察和测量产卵行为、卵孵化率和产卵时间，揭示了产卵行为的机制。
我们发现 更喜欢在豆荚的接缝处产卵，尤其是菜豆荚尖端的接缝处。选择和非选择实验表明，当菜豆荚尾部不可用时，雌虫不产卵。不同菜豆荚部位的卵孵化率没有显著差异，但雌虫在尖端接缝处产卵所需的时间明显更短。在尖端接缝处产卵时间减少是因为昆虫可以利用那里的支撑点并获得插入产卵器的杠杆作用。
对产卵场所的偏好受到菜豆荚表面地形的显著影响。揭示这种行为和机制将为捕食性蝽类的大量饲养提供重要的科学依据。
