Effects of land use and insecticides on natural enemies of aphids in cotton: First evidence from smallholder agriculture in the North China Plain

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cg.contributor.affiliationChinese Academy of Sciencesen
cg.contributor.affiliationHuzhou Teachers Collegeen
cg.contributor.affiliationWageningen University & Researchen
cg.contributor.affiliationInternational Food Policy Research Instituteen
cg.contributor.affiliationChinese Academy of Agricultural Sciencesen
cg.contributor.affiliationBeijing Normal Universityen
cg.contributor.crpWater, Land and Ecosystems
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.agee.2013.11.008en
cg.identifier.projectIFPRI - Environment and Production Technology Divisionen
cg.identifier.publicationRankAen
cg.identifier.wlethemeRegenerating Degraded Agricultural Ecosystemsen
cg.isijournalISI Journalen
cg.issn0167-8809en
cg.journalAgriculture, Ecosystems and Environmenten
cg.reviewStatusPeer Reviewen
cg.subject.wleECOSYSTEM SERVICESen
cg.subject.wleLANDSCAPE CONSERVATIONen
cg.volume183en
dc.contributor.authorKe Zhouen
dc.contributor.authorJikun Huangen
dc.contributor.authorXiangzheng Dengen
dc.contributor.authorWerf, A.W. van deren
dc.contributor.authorZhang, Weien
dc.contributor.authorYanhui Luen
dc.contributor.authorKongming Wuen
dc.contributor.authorFeng Wuen
dc.date.accessioned2015-10-02T07:42:17Zen
dc.date.available2015-10-02T07:42:17Zen
dc.identifier.urihttps://hdl.handle.net/10568/68415
dc.titleEffects of land use and insecticides on natural enemies of aphids in cotton: First evidence from smallholder agriculture in the North China Plainen
dcterms.abstractStudies conducted in the USA and Europe have shown that diverse landscapes in general support greater natural enemy abundance. No quantitative evidence on the relationship between land use diversity and natural enemies has been reported from developing countries, where fields and farms are much smaller than in modernized agriculture in the west, and where insecticide use is often high and indiscriminate. This paper examines the effects of land use and farmers’ insecticide application on natural enemies of aphids in cotton production, based on a unique dataset that links household and cotton field surveys to a detailed assessment of land uses in the landscapes surrounding the cotton fields in the North China Plain (NCP), a major grain and cotton production region in China. Our results show that, in the NCP where farms are small and landscape is dominated by a few crops, Shannon or Simpson land use diversity index is not a good indicator for explaining the relationship between land use and densities of aphid natural enemies. Instead, the types and proportions of cropland habitat mattered. Landscapes with more maize and grassland have higher ladybeetle populations in cotton fields. Farmers’ pest management practices such as the amount and timing of insecticide use significantly affect ladybeetle densities. These results imply that there is a need to recognize the potential positive role of cropland use in pest management and call for more judicious insecticide use strategies by smallholder farmers in the North China Plain.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationKe Zhou, Jikun Huang, Xiangzheng Deng, Werf, W. van der, Wei Zhang, Yanhui Lu, Kongming Wu and Feng Wu. 2014. Effects of land use and insecticides on natural enemies of aphids in cotton: First evidence from smallholder agriculture in the North China Plain. Agriculture, Ecosystems and Environment 183:176-184.en
dcterms.extentp. 176-184en
dcterms.issued2014-01en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherElsevieren
dcterms.replaceshttps://ebrary.ifpri.org/digital/collection/p15738coll5/id/4195en
dcterms.subjectinsecticide useen
dcterms.subjectcottonen
dcterms.subjectnatural enemiesen
dcterms.subjectinsecticidesen
dcterms.subjectlandscapeen
dcterms.subjectladybeetleen
dcterms.subjectecosystem servicesen
dcterms.typeJournal Article

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