Journal Article

Control of Conyza spp. with glyphosate - a review of the situation in Europe

Dubois, M., Monsanto International Sarl, Morges (Switzerland), Sansom, M., Monsanto International Sarl, Morges (Switzerland), Saborido, A.A., Monsanto International Sarl, Morges (Switzerland)

2013

Overview

In Europe, glyphosate resistant populations have developed in some weed species in perennial crops, including three species of the genus Conyza documented by the International Survey of Herbicide Resistant Weeds. Conyza spp. biology is reviewed in this paper and related to population dynamics and the development of resistant populations. Suboptimal growth stage at application, improper agricultural practices such as overreliance on glyphosate and long-term use of sublethal doses are identified as the most important factors of resistance development. Current control methods in perennial crops including mixtures of glyphosate with other active ingredients are discussed and effective weed management strategies are described to manage the development and spread of glyphosate resistant Conyza spp. in Europe.

• Publisher: Czech Academy of Agricultural Sciences (CAAS),Czech Academy of Agricultural Sciences
• Subject: Agricultural practices / ALTURA / APPLICATION RATES / BIOLOGIA / BIOLOGICAL DEVELOPMENT / BIOLOGIE / BIOLOGY / CICLO VITAL / CONTROL METHODS / CONYZA / conyza bonariensis (l.) cronquist / conyza canadensis (l.) cronquist / conyza sumatrensis (retz.) e. h. walker / Crops / CYCLE DE DEVELOPPEMENT / DESARROLLO BIOLOGICO / DESHERBAGE / developmental stages / DEVELOPPEMENT BIOLOGIQUE / DOSAGE EFFECTS / DOSE D'APPLICATION / DOSIS DE APLICACION / EFECTOS DE DOSIFICACION / EFFET DOSE / ESCARDA / EUROPA / EUROPE / GLIFOSATO / GLYPHOSATE / glyphosate resistance / Growth stage / HAUTEUR / HEIGHT / Herbicide resistance / Herbicides / http://www.fao.org/aos/agrovoc#c_16113 / http://www.fao.org/aos/agrovoc#c_24849 / http://www.fao.org/aos/agrovoc#c_25427 / http://www.fao.org/aos/agrovoc#c_26452 / http://www.fao.org/aos/agrovoc#c_2724 / http://www.fao.org/aos/agrovoc#c_3536 / http://www.fao.org/aos/agrovoc#c_36907 / http://www.fao.org/aos/agrovoc#c_4317 / http://www.fao.org/aos/agrovoc#c_5728 / http://www.fao.org/aos/agrovoc#c_5736 / http://www.fao.org/aos/agrovoc#c_7390 / http://www.fao.org/aos/agrovoc#c_8345 / http://www.fao.org/aos/agrovoc#c_8347 / http://www.fao.org/aos/agrovoc#c_921 / http://www.fao.org/aos/agrovoc#c_925 / LIFE CYCLE / MALEZAS / MAUVAISE HERBE / METHODE DE LUTTE / METODOS DE CONTROL / Perennial crops / PESTICIDE RESISTANCE / plant protection / Population dynamics / Populations / resistance / RESISTANCE AUX PESTICIDES / RESISTANCE AUX PRODUITS CHIMIQUES / Resistance factors / RESISTANCE TO CHEMICALS / RESISTENCIA A LOS PLAGUICIDAS / RESISTENCIA A PRODUCTOS QUIMICOS / STEMS / surveys / TALLOS / TIGE / WEED CONTROL / weed management / WEEDS