Case Report of Avena sterilis subsp. sterilis ACCase Herbicide Resistance in Southern Spain

Carlos Sousa-Ortega, José Luis Fernandez and Mino Sportelli ()
Additional contact information
Carlos Sousa-Ortega: Departamento de Agronomía, Escuela Técnica Superior de Ingeniería Agrícola, Universidad de Sevilla, Ctr. Utrera Km 1, 41013 Seville, Spain
José Luis Fernandez: Departamento de Agronomía, Escuela Técnica Superior de Ingeniería Agrícola, Universidad de Sevilla, Ctr. Utrera Km 1, 41013 Seville, Spain
Mino Sportelli: Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy

Agriculture, 2022, vol. 13, issue 1, 1-7

Abstract: Wild oats are worldwide grassy weeds that cause substantial yield losses, particularly in winter cereal crops. In addition, wild oat herbicide resistant cases have increased; indeed, up to 52 cases have been registered. Despite this, no wild oat herbicide resistant cases have been described in Spain, where farmers and technicians have reported poor herbicide efficacy in sterile oats ( Avena sterilis subsp. sterilis L.). A dose-response experiment was conducted comparing the behavior of two populations of A. sterilis from southern Spain to a susceptible population. These populations were collected from two commercial farms where a low efficacy of chemical control had been described. Clodinafop-propargyl and Pinoxaden were tested as active ingredients in the dose-response experiment. Additionally, an alternative herbicide, which consisted of a mixture of Mesosulfuron-methyl and Propoxycarbazone-Na, was also tested at a field dose. The two populations of A. sterilis studied provided a resistant factor higher than 10 for Clodinafop-propargyl and higher than 4 for Pinoxaden. A total control was achieved for plants treated with Mesosulfuron-methyl and Propoxycarbazone-Na.

Keywords: wild oat; Avena sterilis; herbicide resistance; acetyl-CoA carboxylase; Clodinafop-propargyl; Pinoxaden (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/13/1/85/pdf (application/pdf)
https://www.mdpi.com/2077-0472/13/1/85/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:13:y:2022:i:1:p:85-:d:1018195

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().