Emerging pests and diseases of Southeast Asian cassava: a comprehensive evaluation of geographic priorities, management options and research needs

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cg.contributor.crpRoots, Tubers and Bananas
cg.coverage.regionAsia
cg.coverage.regionSouth-eastern Asia
cg.creator.identifierKris Wyckhuys: 0000-0003-0922-488X
cg.howPublishedFormally Publisheden
cg.identifier.dataurlhttps://doi.org/10.7910/dvn/zpusmsen
cg.identifier.doihttps://doi.org/10.1002/ps.4250en
cg.isijournalISI Journalen
cg.issn1526-498Xen
cg.issue6en
cg.journalPest Management Scienceen
cg.reviewStatusPeer Reviewen
cg.subject.ciatCASSAVAen
cg.subject.ciatPESTS AND DISEASESen
cg.volume72en
dc.contributor.authorGraziosi, Ignazioen
dc.contributor.authorMinato, Namien
dc.contributor.authorÁlvarez, Elizabethen
dc.contributor.authorNgo, Dung Tienen
dc.contributor.authorTrinh, Hoat Xuanen
dc.contributor.authorAye, Tin Maungen
dc.contributor.authorPardo, Juan Manuelen
dc.contributor.authorWongtiem, Prapiten
dc.contributor.authorWyckhuys, Kris A.G.en
dc.date.accessioned2016-02-23T14:27:09Zen
dc.date.available2016-02-23T14:27:09Zen
dc.identifier.urihttps://hdl.handle.net/10568/71130
dc.titleEmerging pests and diseases of Southeast Asian cassava: a comprehensive evaluation of geographic priorities, management options and research needsen
dcterms.abstractCassava is a major staple, bio‐energy and industrial crop in many parts of the developing world. In Southeast Asia, cassava is grown on >4 million ha by nearly 8 million (small‐scale) farming households, under (climatic, biophysical) conditions that often prove unsuitable for many other crops. While SE Asian cassava has been virtually free of phytosanitary constraints for most of its history, a complex of invasive arthropod pests and plant diseases has recently come to affect local crops. We describe results from a region‐wide monitoring effort in the 2014 dry season, covering 429 fields across five countries. We present geographic distribution and field‐level incidence of the most prominent pest and disease invaders, introduce readily‐available management options and research needs. Monitoring work reveals that several exotic mealybug and (red) mite species have effectively colonised SE Asia's main cassava‐growing areas, occurring in respectively 70% and 54% of fields, at average field‐level incidence of 27 ± 2% and 16 ± 2%. Cassava witches broom (CWB), a systemic phytoplasma disease, was reported from 64% of plots, at incidence levels of 32 ± 2%. Although all main pests and diseases are non‐natives, we hypothesise that accelerating intensification of cropping systems, increased climate change and variability, and deficient crop husbandry are aggravating both organism activity and crop susceptibility. Future efforts need to consolidate local capacity to tackle current (and future) pest invaders, boost detection capacity, devise locally‐appropriate integrated pest management (IPM) tactics, and transfer key concepts and technologies to SE Asia's cassava growers. Urgent action is needed to mobilise regional as well as international scientific support, to effectively tackle this phytosanitary emergency and thus safeguard the sustainability and profitability of one of Asia's key agricultural commodities. © 2016 Society of Chemical Industryen
dcterms.accessRightsLimited Access
dcterms.available2016-03-24
dcterms.bibliographicCitationGraziosi, Ignazio; Minato, Nami; Álvarez, Elizabeth; Ngo, Dung Tien; Trinh, Hoat Xuan; Aye, Tin Maung; Pardo, Juan Manuel; Wongtiem, Prapit; Wyckhuys, Kris A.G.. 2016. Emerging pests and diseases of Southeast Asian cassava: a comprehensive evaluation of geographic priorities, management options and research needs . Pest Management Science 72(6): 1071-1089.en
dcterms.extent1071-1089en
dcterms.issued2016-06
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectmanihot esculentaen
dcterms.subjectphenacoccus manihotien
dcterms.subjectbiological controlen
dcterms.subjectpest insectsen
dcterms.subjectinsect controlen
dcterms.subjectcassavaen
dcterms.subjectfood securityen
dcterms.subjectsouth east asiaen
dcterms.subjectcontrol biológicoen
dcterms.subjectinsectos dañinosen
dcterms.subjectyucaen
dcterms.subjectinvasive speciesen
dcterms.subjectasia sudorientalen
dcterms.subjectespecie invasivaen
dcterms.subjectseguridad alimentariaen
dcterms.typeJournal Article

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