Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China

doi:10.1088/1748-9326/aabfb0

	Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China
	Huang, Jikun 1,2; Zhou, Ke 2,3; Zhang, Wei 4; Deng, Xiangzheng 2; van der Werf, Wopke 5; Lu, Yanhui 6; Wu, Kongming 6; Rosegrant, Mark W.4
刊名	ENVIRONMENTAL RESEARCH LETTERS
	2018-06-01
卷号	13 期号:6 页码:11
关键词	economic value natural enemies insecticides smallholder farming biological control
ISSN号	1748-9326
DOI	10.1088/1748-9326/aabfb0
通讯作者	Huang, Jikun(jkhuang.ccap@pku.edu.cn) ; Zhang, Wei(w.zhang@cgiar.org)
英文摘要	Little empirical evidence on the economic value of biological control of pests at farm level is available to improve economic decision-making by farmers and policy makers. Using insect sampling and household survey in an integrated bio-economic analysis framework, this paper studies farmers' crop management practices in cotton in the North China Plain, and estimates the marginal value of natural enemies and costs of chemical insecticides to farmers. Ladybeetles (mainly Harmonia axyridis, Propylea japonica, and Coccinella septempunctata), the dominant natural enemy group that controls the primary pest (aphid) in cotton in our study area, provide a significant economic benefit that is unknown to the farmers. Even at the current high levels of insecticide use, an additional ladybeetle provides an economic benefit of 0.05 CNY (almost USD 0.01) to farmers. The use of broad-spectrum insecticides by farmers is alarmingly excessive, not only undermining farmers' cotton profitability but also inducing social costs as well as disruption of the natural pest suppression system. Doubling current ladybeetle density in cotton field could gain an estimated USD 300 million for cotton farmers in China, providing a strong economic case for policies to move the pest control system towards a more ecologically-based regime, with positive consequences for farm income and environmental health. With rising use of biological control service provided by natural enemies such as ladybeetles in cotton fields, significant falls in farmers' insecticide use would be expected, which could raise the value of ladybeetles and other natural enemies even further. The results indicate that there is an urgent need to rationalize inputs and move forward to improved agro-ecosystem management in smallholder farming system. Raising knowledge and awareness on the costs and value of biological pest control versus insecticides among farmers and policy makers and having effective extension service, are priorities towards achieving a more ecologically-based approach to crop protection on smallholder farms.
资助项目	United Kingdom's Ecosystem Services for Poverty Alleviation (ESPA) Programme[NE/I004335/1] ; External Cooperation Program of the Chinese Academy of Sciences[GJHZ1312] ; Dutch Science Foundation[833.13.004] ; National Science Foundation of China[71333013] ; Ministry of Science and Technology, China[2012CB955700]
WOS关键词	INTEGRATED PEST-MANAGEMENT ; BT COTTON ; AGRICULTURAL LANDSCAPES ; ECOSYSTEM SERVICES ; FARMING PRACTICES ; NORTH CHINA ; PRODUCTIVITY ; ADOPTION ; HEALTH ; SUSTAINABILITY
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000434819300002
资助机构	United Kingdom's Ecosystem Services for Poverty Alleviation (ESPA) Programme ; External Cooperation Program of the Chinese Academy of Sciences ; Dutch Science Foundation ; National Science Foundation of China ; Ministry of Science and Technology, China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54866]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Jikun; Zhang, Wei
作者单位	1.Peking Univ, Sch Adv Agr Sci, China Ctr Agr Policy, 5 Yiheyuan Rd, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resource Res, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China 3.Huzhou Univ, Inst Rural Dev, Huzhou 313000, Peoples R China 4.Int Food Policy Res Inst, Environm & Prod Technol Div, 1201 Eye St NW, Washington, DC 20005 USA 5.Wageningen Univ, Dept Plant Sci, Ctr Crop Syst Anal, POB 430, NL-6700 AK Wageningen, Netherlands 6.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jikun,Zhou, Ke,Zhang, Wei,et al. Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(6):11.
APA	Huang, Jikun.,Zhou, Ke.,Zhang, Wei.,Deng, Xiangzheng.,van der Werf, Wopke.,...&Rosegrant, Mark W..(2018).Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China.ENVIRONMENTAL RESEARCH LETTERS,13(6),11.
MLA	Huang, Jikun,et al."Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China".ENVIRONMENTAL RESEARCH LETTERS 13.6(2018):11.