Sublethal effects of spinosad on Plutella xylostella (Lepidoptera : Yponomeutidae)

doi:10.1016/j.cropro.2008.05.008

	Sublethal effects of spinosad on Plutella xylostella (Lepidoptera : Yponomeutidae)
	Yin, Xian-Hui 1,2,3; Wu, Qing-Jun 1; Li, Xue-Feng 2; Zhang, You-Jun 1; Xu, Bao-Yun 1
刊名	CROP PROTECTION
	2008
卷号	27 期号:10 页码:1385-1391
关键词	Plutella xylostella spinosad sublethal effect biological parameters
ISSN号	0261-2194
DOI	10.1016/j.cropro.2008.05.008
通讯作者	Yin, Xian-Hui
英文摘要	The effects of sublethal concentrations of spinosad applied for 48 h at LC25 (0.12 mg L-1) and LC50 (0.28 mg L-1) on the biological characteristics of the diamondback moth, Plutella xylostella (Lepidoptera: Yponomeutidae), were investigated. The characteristics studied including development time, pupation rate, pupal weight, fecundity, fertility, larval weight and survival rate in the parent and offspring. The pupation rate and Papal weight were significantly lower in treated groups in which the third instars were treated with spinosad at LC25 or LC50 than in the control group. The fecundity, egg size and reproductive effort (fecundity x egg size) were strongly reduced, and the hatchability of smaller eggs tended to be lower in treated groups. The survival rate of the offspring at immature stages was lower in the LC25 and LC50 treatment groups than in the control group, and the development time tended to be prolonged in the treatment groups. The mean values of the intrinsic rate of increase (r(m)), finite rate of increase (lambda), gross reproductive rate (GRR) and net reproductive rate (R-0) were significantly lower in the treatment groups than in the untreated group. Generally, the effects on biological characteristics were greater in the LC50 treatment group, and the effects on the offspring were much smaller than those on the parent generation. Our results suggest that sublethal concentrations of spinosad may reduce population growth of P xylostella by affecting its survival, development and reproduction. (C) 2008 Elsevier Ltd. All rights reserved.
学科主题	Agronomy ; AGRONOMY
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000259132300013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101227]
专题	蔬菜花卉研究所_植物保护研究室
作者单位	1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Dept Plant Protect, Beijing 100081, Peoples R China 2.China Agr Univ, Coll Sci, Beijing 100094, Peoples R China 3.Guizhou Univ, Coll Agr, Guiyang 550025, Peoples R China
推荐引用方式 GB/T 7714	Yin, Xian-Hui,Wu, Qing-Jun,Li, Xue-Feng,et al. Sublethal effects of spinosad on Plutella xylostella (Lepidoptera : Yponomeutidae)[J]. CROP PROTECTION,2008,27(10):1385-1391.
APA	Yin, Xian-Hui,Wu, Qing-Jun,Li, Xue-Feng,Zhang, You-Jun,&Xu, Bao-Yun.(2008).Sublethal effects of spinosad on Plutella xylostella (Lepidoptera : Yponomeutidae).CROP PROTECTION,27(10),1385-1391.
MLA	Yin, Xian-Hui,et al."Sublethal effects of spinosad on Plutella xylostella (Lepidoptera : Yponomeutidae)".CROP PROTECTION 27.10(2008):1385-1391.