Functional response, host stage preference and interference of two whitefly parasitoids

doi:10.1111/1744-7917.12186

CORC > 中国农业科学院 > 植物保护研究所

	Functional response, host stage preference and interference of two whitefly parasitoids
	Xu, Hai-Yun 1; Yang, Nian-Wan 1; Duan, Min 1,3; Wan, Fang-Hao 1,2
刊名	INSECT SCIENCE
	2016
卷号	23 期号:1 页码:134-144
关键词	Bemisia tabaci Encarsia sophia Eretmocerus hayati functional response interspecific competition
ISSN号	1672-9609
DOI	10.1111/1744-7917.12186
通讯作者	Xu, Hai-Yun
英文摘要	The functional responses of two parasitoids, Eretmocerus hayati Zolnerowich & Rose and Encarsia sophia Girault & Dodd, of whitefly Bemisia tabaci Gennadius Middle East-Asia Minor 1 were studied under laboratory conditions. In addition, the influence of host density and host stage on the competitive interactions between the two parasitoids, and biological control effect on whitefly were evaluated. In the functional response study, adult parasitoids were tested individually, with a conspecific or heterospecific competitor. Both Er. hayati and En. sophia exhibited a type II response to increasing host density, whether a conspecific or heterospecific competitor was present or not. Difference of searching rates and handling times between treatments suggested interference interactions existed between two parasitoid species. In the host stage preference study, two parasitoid species were jointly tested. Er. hayati had a competitive advantage over En. sophia when provided young host instars (first and second instar), whereas no advantage was found on old host instars (third and fourth instar). The biological control effect of Er. hayati and En. sophia in different introductions varied with host density. However, the effect of host instar on host mortality was not significant. These findings provide information for the practice of biological control and give better insight into how parasitoid species may coexist in diverse environments.
学科主题	Entomology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000368829000013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/11554]
专题	植物保护研究所
作者单位	1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, 2 Yuan Ming Yuan West Rd, Beijing 100193, Peoples R China 2.Chinese Acad Agr Sci, Agr Genome Inst Shenzhen, Shenzhen, Peoples R China 3.Qingdao Agr Univ, Qingdao, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hai-Yun,Yang, Nian-Wan,Duan, Min,et al. Functional response, host stage preference and interference of two whitefly parasitoids[J]. INSECT SCIENCE,2016,23(1):134-144.
APA	Xu, Hai-Yun,Yang, Nian-Wan,Duan, Min,&Wan, Fang-Hao.(2016).Functional response, host stage preference and interference of two whitefly parasitoids.INSECT SCIENCE,23(1),134-144.
MLA	Xu, Hai-Yun,et al."Functional response, host stage preference and interference of two whitefly parasitoids".INSECT SCIENCE 23.1(2016):134-144.