Sumatran Fleabane (Conyza sumatrensis) Resistance to Glyphosate in Peach Orchards in Turkey

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dc.contributor.authorİnci, Deniz
dc.contributor.authorGalvin, Liberty
dc.contributor.authorAl-Khatib, Kassim
dc.contributor.authorUludağ, Ahmet
dc.date.accessioned2020-04-30T23:32:19Z
dc.date.available2020-04-30T23:32:19Z
dc.date.issued2019
dc.departmentDÜ, Ziraat Fakültesi, Bitki Koruma Bölümüen_US
dc.descriptionInci, Deniz/0000-0002-7383-559Xen_US
dc.descriptionWOS: 000469238600019en_US
dc.description.abstractGlyphosate has been widely used to control annual, perennial, and biennial weeds including Conyza species. Conyza sumatrensis (Sumatran fleabane) is considered a highly invasive and troublesome weed worldwide, including in European and Mediterranean regions. In Turkey, the use of glyphosate in orchards has recently increased; however, extensive use of glyphosate has resulted in poor control of C. sumatrensis in several peach orchards. The objectives of this research were to determine if C. sumatrensis is resistant to glyphosate and identify alternative herbicides with different modes of action that can be used instead of glyphosate. Two dose response studies were conducted in the greenhouse to evaluate the response of four C. sumatrensis populations to glyphosate, chlorsulfuron, and metribuzin. Glyphosate isopropyl amine and glyphosate potassium was applied at 0, 0.25, 0.5, 1, 2, 4, and 8 times the use rate of 1080 g a.e./ha (a.e. indicates acid equivalent) when the plants were at rosette (5-6 true leaves) and vegetative (20-22 cm tall) stages. Effects of both glyphosate formulations were combined. The resistant populations showed higher resistance 3.8 to 6.6 and 5.3 to 7.8 times at rosette stage and vegetative stage, respectively, compared with the susceptible population. Furthermore, glyphosate-resistant populations were treated with chlorsulfuron and metribuzin at 0, 0.25, 0.5, 1, 2, 4, and 8 times use rate of 7.5 and 350 g a.i./ha, respectively at the rosette stage. The glyphosate-resistant populations exhibited 2.4 to 3.8 times more resistance to chlorsulfuron, but were adequately controlled with metribuzin.en_US
dc.description.sponsorshipPlant Sciences Department of University of California, Davisen_US
dc.description.sponsorshipWe thank the Plant Sciences Department of University of California, Davis for their support.en_US
dc.identifier.doi10.21273/HORTSCI13749-18en_US
dc.identifier.endpage879en_US
dc.identifier.issn0018-5345
dc.identifier.issn2327-9834
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage873en_US
dc.identifier.urihttps://doi.org/10.21273/HORTSCI13749-18
dc.identifier.urihttps://hdl.handle.net/20.500.12684/4681
dc.identifier.volume54en_US
dc.identifier.wosWOS:000469238600019en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmer Soc Horticultural Scienceen_US
dc.relation.ispartofHortscienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectglyphosate isopropyl aminen_US
dc.subjectglyphosate potassiumen_US
dc.subjectchlorsulfuronen_US
dc.subjectmetribuzinen_US
dc.subjectConyza sumatrensis (Retz.) E. H. Walkeren_US
dc.subjectPrunus persica Batschen_US
dc.subjectherbicide resistanceen_US
dc.subjectdose responseen_US
dc.titleSumatran Fleabane (Conyza sumatrensis) Resistance to Glyphosate in Peach Orchards in Turkeyen_US
dc.typeArticleen_US

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