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Uncovering the economic value of natural enemies and true costs of chemical insecticides to cotton farmers in China
Huang, Jikun1,2; Zhou, Ke2,3; Zhang, Wei4; Deng, Xiangzheng2; van der Werf, Wopke5; Lu, Yanhui6; Wu, Kongming6; Rosegrant, Mark W.4
2018-06-01
Source PublicationENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
Volume13Issue:6Pages:11
Corresponding AuthorHuang, Jikun(jkhuang.ccap@pku.edu.cn) ; Zhang, Wei(w.zhang@cgiar.org)
AbstractLittle 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.
Keywordeconomic value natural enemies insecticides smallholder farming biological control
DOI10.1088/1748-9326/aabfb0
WOS KeywordINTEGRATED PEST-MANAGEMENT ; BT COTTON ; AGRICULTURAL LANDSCAPES ; ECOSYSTEM SERVICES ; FARMING PRACTICES ; NORTH CHINA ; PRODUCTIVITY ; ADOPTION ; HEALTH ; SUSTAINABILITY
Indexed BySCI
Language英语
Funding ProjectUnited 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]
Funding OrganizationUnited 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
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000434819300002
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54867
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHuang, Jikun; Zhang, Wei
Affiliation1.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
Recommended Citation
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.
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