A simple, hand-held decision support designed tool to help resource-poor farmers improve potato late blight management

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cg.authorship.typesCGIAR and advanced research institute
cg.contributor.affiliationInternational Potato Center
cg.contributor.affiliationUniversidad Nacional Daniel Alcides Carrion, Peru
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorEuropean Union
cg.contributor.donorOPEC Fund for International Development
cg.coverage.countryEcuador
cg.coverage.countryPeru
cg.coverage.iso3166-alpha2EC
cg.coverage.iso3166-alpha2PE
cg.coverage.regionLatin America
cg.coverage.regionSouth America
cg.creator.identifierWillmer Perez: 0000-0003-2807-7256
cg.creator.identifierJorge Andrade-Piedra: 0000-0001-7617-0506
cg.identifier.doihttps://doi.org/10.1016/j.cropro.2020.105186
cg.isijournalISI Journal
cg.issn0261-2194
cg.journalCrop Protection
cg.number105186
cg.river.basinANDES
cg.subject.cipCROP PROTECTION
cg.subject.cipCROP AND SYSTEMS SCIENCES CSS
cg.subject.cipPOTATO AGRI-FOOD SYSTEMS
cg.subject.cipPOTATOES
cg.subject.cipSEED SYSTEMS
cg.volume134
dc.contributor.authorPérez, W.
dc.contributor.authorArias, R.
dc.contributor.authorTaipe, A.
dc.contributor.authorOrtíz, O.
dc.contributor.authorForbes, G.
dc.contributor.authorAndrade-Piedra, J.L.
dc.contributor.authorKromann, P.
dc.date.accessioned2020-04-27T16:10:44Zen
dc.date.available2020-04-27T16:10:44Zen
dc.identifier.urihttps://hdl.handle.net/10568/108073
dc.titleA simple, hand-held decision support designed tool to help resource-poor farmers improve potato late blight managementen
dcterms.abstractMany decision support systems (DSS) have been developed to manage potato late blight caused by Phytophthora infestans, but most of these require sophisticated equipment and are not realistic alternatives for small-scale farmers in low-income countries. This research evaluates a simple, hand-held decision support tool (HH-DST) consisting of a disk with three concentric circles, two of which represent factors that drive late blight epidemics and the third providing a spray recommendation. Three disks of different colors have been designed for potato varieties of varying levels of host resistance. The HH-DST was compared with locally used fungicide spray regimes in three trials in Peru, and in six trials in Ecuador, where the tool had been slightly modified. In two additional trials in Peru, the HH-DST was compared with local practices, calendar spraying and two other DSS. The HH-DST and local spray regimes both gave relatively good disease control in all cases, however, the HH-DST was more effective with highly susceptible cultivars both in Ecuador and Peru. The HH-DST also had equal or lower number of sprays per season and had a lower environmental impact, based on the environmental impact quotient (EIQ), than did the local practices. Results were similar in trials comparing different DSS, where all approaches, including the HH-DST, adequately controlled disease, and the HH-DST was among the lowest for both number of sprays per season and environmental impact. The HH-DST is a simple tool that can help resource-poor farmers improve management of potato late blight.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.audienceAcademics
dcterms.audienceCGIAR
dcterms.bibliographicCitationPérez, W., Arias, R., Taipe, A., Ortiz, O., Forbes, G., Andrade-Piedra, J.L. and Kromann, P. (2020). A simple, hand-held decision support designed tool to help resource-poor farmers improve potato late blight management Crop Protection. ISSN 0261-2194. v134. 7p.en
dcterms.extent7 p.
dcterms.issued2020-08
dcterms.languageen
dcterms.licenseCC-BY-NC-ND-4.0
dcterms.publisherElsevier
dcterms.subjectpotatoesen
dcterms.subjectphytophthora infestansen
dcterms.subjectdecision supporten
dcterms.subjectdecision support systemsen
dcterms.subjectpest managementen
dcterms.typeJournal Article

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