Management Options for Multiple Herbicide–Resistant Corn Poppy (Papaver rhoeas) in Spain

dc.contributor.authorRey Caballero, Jordi
dc.contributor.authorRoyo-Esnal, Aritz
dc.contributor.authorRecasens i Guinjuan, Jordi
dc.contributor.authorGonzález, Ignacio
dc.contributor.authorTorra Farré, Joel
dc.description.abstractCorn poppy is the most widespread broadleaf weed infesting winter cereals in Europe. Biotypes that are resistant (R) to both 2,4-D and tribenuron-methyl have evolved in recent decades, thus complicating their chemical control. In this study, field experiments at two locations over three seasons were conducted to evaluate the effects of different weed management strategies on corn poppy resistant to 2,4-D and tribenuron-methyl, including crop rotations, delayed sowing and different herbicide programs. After 3 yr, all integrated weed management (IWM) strategies reduced the initial density of corn poppy, although the most successful strategies were those which either included a suitable crop rotation (sunflower or field peas), or had a variation in the herbicide application timing (early POST or combining PRE or early POST and POST). The efficacy of IWM strategies differed between both locations, possibly due to different population dynamics and the genetic basis of herbicide resistance. Integrated management of multiple herbicide–resistant corn poppy is necessary in order to reduce selection pressure by herbicides, mitigate the evolution of new R biotypes, and reduce the weed density in highly infested fields.ca_ES
dc.description.sponsorshipThe authors gratefully acknowledge Dow Agro- Sciences for funding the trials. They thank E. Edo, L. Pallares, L. Mateu, and N. Moix for their help in the field trials. Rey-Caballero was funded by Ph.D. grants from the Agència de Gestió d ’ Ajuts Universitaris i de Recerca (FI-2013) from Generalitat de Catalunya.ca_ES
dc.publisherWeed Science Society of Americaca_ES
dc.relation.isformatofVersió postprint del document publicat a:
dc.relation.ispartofWeed Science, 2017, vol.65, núm. 2, p. 295-304ca_ES
dc.rights(c) Weed Science Society of America, 2017ca_ES
dc.subjectChemical programca_ES
dc.subjectCrop rotationca_ES
dc.subjectHerbicide managementca_ES
dc.subjectIntegrated weed management strategyca_ES
dc.titleManagement Options for Multiple Herbicide–Resistant Corn Poppy (Papaver rhoeas) in Spainca_ES
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