寄生竹弯茎野螟的兰氏原绒茧蜂(膜翅目:茧蜂科)寄生生物学特性  

Parasitic Characteristics of Protapanteles lamborni(Hymenoptera:Braconidae),A Dominant Larval Parasitoid of Crypsiptya coclesalis(Lepidoptera:Pyralidae)

作　　者：柴苗 何孙强[1] 郭瑞 齐婷 王义平[1] Chai Miao;He Sunqiang;Guo Rui;Qi Ting;Wang Yiping(School of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University Lin＇ an 311300;Administration Bureau of Zhefiang Qingliangfeng National Nature Reserve Lin＇an 311300)

机构地区：[1]浙江农林大学林业与生物技术学院,临安311300 [2]浙江清凉峰国家级自然保护区管理局,临安311300

出　　处：《林业科学》2018年第2期186-190,共5页Scientia Silvae Sinicae

基　　金：林业公益性行业科研重大专项"亚热带主要经济林重大病虫害监测及生态调控技术"(201304403)

摘　　要：【目的】研究兰氏原绒茧蜂的生物学特性,为竹弯茎野螟的生物防治提供科学依据。【方法】采用野外调查与室内试验相结合的方法,对兰氏原绒茧蜂的寄生生物学特性进行研究。【结果】兰氏原绒茧蜂成虫羽化主要发生在上午8:00—10:00,且羽化当天即可交配、产卵;该成虫可兼营两性生殖和孤雌生殖,但孤雌生殖未见雌性后代;在16~32℃范围内,16℃的成虫发育历期最长为6.65±0.24天,以10%蜂蜜水作为补充营养成虫发育历期则增加到13.35±0.37天。【结论】兰氏原绒茧蜂的寄生率随寄主发生代数增加而增加,且主要选择3-4龄幼虫期寄主寄生。在一定温度范围内,兰氏原绒茧蜂的发育历期随温度升高而降低,以10%蜂蜜水作为补充营养可显著延长成虫寿命。【Objective】Protapanteles lamborni is a dominant larval parasitoid of Crypsiptya coclesalis. Understanding of biological habits of P. lamborni would provide the fundamental information for biological control of C. coclesalis.【Method】In this paper,the field investigation and laboratory tests were used to study the parasitic characteristics of P.lamborni.【Result】 Result showed that adults of P. lamborni mainly emerged between 8： 00 and 10： 00 am,so that they could copulate and lay eggs on the same day. The adult could perform both amphigony and arrhenotoky. In the range of16 ℃ to 32 ℃,the adult development period at 16 ℃ lasted maximally for 6. 65 ± 0. 24 days,however it could be 13. 35± 0. 37 days if 10% honey solution was added as supplementary nutrition.【Conclusion】 P. lamborni had an increasing parasitic rate with generations of the host of C. codesalis,and it mainly parasitized the third or fourth instar larvae of C.codesalis. Within a certain range of temperature,the developmental duration of P. lamborni decreased with the increase in temperature,but the adults could extend their longevity significantly if being supplied with 10% honey solution as supplementary nutrition.

关 键 词：竹弯茎野螟 寄生蜂 生物学 兰氏原绒茧蜂 补充营养 

分 类 号：S718.7[农业科学—林学]