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中国生物防治学报 ›› 2024, Vol. 40 ›› Issue (3): 507-515.DOI: 10.16409/j.cnki.2095-039x.2023.01.038

• 研究论文 •    

松毛虫凸腿小蜂对林间不同寄主的选择性与适合度

郑泠芝1, 唐缙涵1, 陈祯鸿1, 卓强祯2, 翁怀锋3, 梁光红1   

  1. 1.福建农林大学林学院, 福州 350002;
    2. 福建省永泰大湖国有林场, 福州 350715;
    3. 福建省霞浦国有林场, 宁德 355100
  • 收稿日期:2023-03-13 发布日期:2024-06-07
  • 通讯作者: 梁光红,博士,教授,E-mail:fjlhg@126.com。
  • 作者简介:郑泠芝,硕士研究生,E-mail:1139858320@qq.com;唐缙涵,硕士研究生,E-mail:1056464536@qq.com。

Preference and Performance of Kriechbaumerella dendrolimi with relation to Different Forest Hosts

ZHENG Lingzhi1, TANG Jinhan1, CHEN Zhenhong1, ZHUO Qiangzhen2, WENG Huaifeng3, LIANG Guanghong1   

  1. 1. Forest College, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    2. Fujian Yongtai Dahu State-owned Forest Farm, Fuzhou 350715, China;
    3. Fujian Xiapu State-owned Forest Farm, Ningde 355100, China
  • Received:2023-03-13 Published:2024-06-07
  • Contact: 福建省科技厅引导性项目(2021N0002);2022 年福州市林业科学技术研究(2022-81);国家自然科学基金(31870641)
  • Supported by:
    10.16409/j.cnki.2095-039x.2023.01.038

摘要: 松毛虫凸腿小蜂Kriechbaumerella dendrolimi是我国南方针叶林重大食叶害虫柳杉毛虫Dendrolimus houi的蛹期优势天敌。通过调查该蜂的自然寄主种类,明确其对不同寄主的选择性与适合度,为其在野外转主寄生情况和潜在的控害能力提供理论依据。为此,在柳杉毛虫为害的柳杉Cryptomeria fortunei林分内展开调查,采集并鉴定大型鳞翅目昆虫,记录松毛虫凸腿小蜂对不同种类蛹的寄生特性及其寄生不同蛹后的子代情况。结果表明,在受害林分中,共获得10种大型鳞翅目昆虫,具有不同的蛹期;松毛虫凸腿小蜂对不同种类的蛹存在选择性差异,优先选择柳杉毛虫蛹(占93.33%),且耗时最短(163.98 s)。在寄生阶段,该蜂能准确定位、识别柳杉毛虫蛹等寄主,也能快速分辨非寄主如银杏大蚕蛾Saturnia japonica。从寄生结果来看,该蜂能在柳杉毛虫、乌桕大蚕蛾Attacus atlas、思茅松毛虫D. kikuchii、明目大蚕蛾Antheraea frithi、樗蚕Samia cynthia、樟蚕Saturnia pyretorum和马尾松毛虫D. punctatus这7种蛹内成功繁育子代,但其子代之间的生物学特性存在显著差异。除柞蚕Antheraea pernyi蛹外,柳杉毛虫蛹繁育的子代数量最多且雌蜂体型最大,马尾松毛虫蛹繁育的子代最少且雌蜂最小。研究表明,受害林分中存在着丰富的大型鳞翅目昆虫种类,理论上可供松毛虫凸腿小蜂完成其年生活史,有望实现林间持续防控的效果。

关键词: 松毛虫凸腿小蜂, 寄生特性, 寄主选择性, 寄主适合度

Abstract: Kriechbaumerella dendrolimi is a dominant natural enemy in the pupal stage of Dendrolimus houi, an overwhelming caterpillar in southern coniferous forests in China. The natural hosts of this species were investigated to test for the relationship between host preference and performance and to provide a theoretical basis for its host shift and biological control potential in the field. To this end, we surveyed the Cryptomeria fortunei stand infested by D. houi, collected and identified the large-size moths, recorded the parasitic characteristics of K. dendrolimi and offspring wasp development from different hosts. Ten moth species with different pupal stages were collected during this survey. The results showed that K. dendrolimi differed in preference for pupae of different species, preferring D. houi pupae (93.33%) and taking the shortest time (163.98 s) to make decision. During the parasitic stage, K. dendrolimi accurately located and identified hosts like D.houi and D. kikuchii but decisively refused non hosts Brahmaea hearseyi and Saturnia japonica. K. dendrolimi offspring were obtained from pupae of 7 species, such as D. houi,ttacus atlas,D. kikuchii, Antheraea frithi,Samia Cynthia,Saturnia pyretorum,andD. punctatus, although they differed in certain biological characteristics. K. dendrolimi offspring from D. houi were the greatest in population size and the biggest in body size, while those from D. punctatus were of the smallest population size and body size, except for Antheraea pernyi. In conclusion, there are abundant moth species in the forest stands that can support the annual life history of K. dendrolimi and the sustainable pest control in the forests.

Key words: Kriechbaumerella dendrolimi, parasitic characteristics, host selectivity, host fitness

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