Epidemic network analysis for mitigation of invasive pathogens in seed systems: potato in Ecuador

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cg.authorship.typesCGIAR single centreen
cg.contributor.affiliationUniversity of Floridaen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationKansas State Universityen
cg.contributor.crpRoots, Tubers and Bananas
cg.coverage.countryEcuador
cg.coverage.iso3166-alpha2EC
cg.coverage.regionSouth America
cg.creator.identifierChristopher Buddenhagen: 0000-0002-3016-1054
cg.creator.identifierJorge Andrade-Piedra: 0000-0001-7617-0506
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1094/phyto-03-17-0108-fien
cg.isijournalISI Journalen
cg.issn0031-949Xen
cg.issue10en
cg.journalPhytopathologyen
cg.reviewStatusPeer Reviewen
cg.subject.cipSEED SYSTEMSen
cg.subject.cipCROP AND SYSTEMS SCIENCES CSSen
cg.subject.cipPOTATOESen
cg.subject.cipPOTATO AGRI-FOOD SYSTEMSen
cg.volume107en
dc.contributor.authorBuddenhagen, C.en
dc.contributor.authorHernández Nopsa, J.F.en
dc.contributor.authorAndersen, K.F.en
dc.contributor.authorAndrade-Piedra, J.L.en
dc.contributor.authorForbes, G.en
dc.contributor.authorKromann, P.en
dc.contributor.authorThomas-Sharma, Saraen
dc.contributor.authorUseche, Pilaren
dc.contributor.authorGarrett, K.A.en
dc.date.accessioned2018-01-26T02:39:45Zen
dc.date.available2018-01-26T02:39:45Zen
dc.identifier.urihttps://hdl.handle.net/10568/90586
dc.titleEpidemic network analysis for mitigation of invasive pathogens in seed systems: potato in Ecuadoren
dcterms.abstractSeed systems have an important role in the distribution of high-quality seed and improved varieties. The structure of seed networks also helps to determine the epidemiological risk for seedborne disease. We present a new approach for evaluating the epidemiological role of nodes in seed networks, and apply it to a regional potato farmer consortium (Consorcio de Productores de Papa [CONPAPA]) in Ecuador. We surveyed farmers to estimate the structure of networks of farmer seed tuber and ware potato transactions, and farmer information sources about pest and disease management. Then, we simulated pathogen spread through seed transaction networks to identify priority nodes for disease detection. The likelihood of pathogen establishment was weighted based on the quality or quantity of information sources about disease management. CONPAPA staff and facilities, a market, and certain farms are priorities for disease management interventions such as training, monitoring, and variety dissemination. Advice from agrochemical store staff was common but assessed as significantly less reliable. Farmer access to information (reported number and quality of sources) was similar for both genders. However, women had a smaller amount of the market share for seed tubers and ware potato. Understanding seed system networks provides input for scenario analyses to evaluate potential system improvements.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.bibliographicCitationBuddenhagen, C.E.; Hernandez Nopsa, J.F.; Andersen, K.F.; Andrade-Piedra, J.L.; Forbes, G.A.; Kromann, P.; Thomas-Sharma, S.; Useche, P.; Garrett, K.A. 2017. Epidemic network analysis for mitigation of invasive pathogens in seed systems: potato in Ecuador. Phytopatology. 107:10. ISSN 0031-949X. 107(10): 1209-1218en
dcterms.extent1209-1218en
dcterms.issued2017-10
dcterms.languageen
dcterms.publisherScientific Societiesen
dcterms.subjectpathogensen
dcterms.subjectseedsen
dcterms.subjectfarming systemsen
dcterms.subjectnetworksen
dcterms.typeJournal Article

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