Search results for " Glyphosate"
showing 10 items of 13 documents
El problema de la aplicación tardía del principio de precaución en las aspersiones aéreas con Glifosato contra cultivos de uso ilícito en Colombia: L…
Female preference and adverse developmental effects of glyphosate-based herbicides on ecologically relevant traits in Japanese quail
2019
Controversial glyphosate-based herbicides (GBHs) are the most frequently used herbicides globally. An increasing number of studies have identified GBH residues in soil, water and even human food that may expose non-target organism including wildlife, livestock, and humans to health risks. After a heated debate, European Union allowed the use of GBHs to continue until 2022, after which their risks will be re-evaluated. Thus, decision makers urgently need scientific evidence on GBH residues and their possible effects on ecosystems. An important, yet neglected, aspect is to assess whether animals show preference or avoidance for GBH contaminated food, as it can influence the likelihood of adve…
Biochemical bases for a widespread tolerance of cyanobacteria to the phosphonate herbicide glyphosate
2008
Possible non-target effects of the widely used, non-selective herbicide glyphosate were examined in six cyanobacterial strains, and the basis of their resistance was investigated. All cyanobacteria showed a remarkable tolerance to the herbicide up to millimolar levels. Two of them were found to possess an insensitive form of glyphosate target, the shikimate pathway enzyme 5-enol-pyruvyl-shikimate-3-phosphate synthase. Four strains were able to use the phosphonate as the only phosphorus source. Low uptake rates were measured only under phosphorus deprivation. Experimental evidence for glyphosate metabolism was also obtained in strains apparently unable to use the phosphonate. Results suggest…
Stem-injection of herbicide for control of Ailanthus altissima (Mill.) Swingle: a practical source of power for drilling holes in stems
2013
Abstract: Ailanthus altissima is a well-known invasive tree in many parts of the world showing an outstanding ability to establish within woodlands and other less-disturbed habitats. Previous studies have reported that control of this species is very difficult because of its strong resprouting. Indeed, effective control can be achieved only by mechanical treatment followed by the application of a systemic herbicide. Operating drills or saws and other mechanical equipment require electric power supply which is not readily available in many invaded sites, notably shrubslands and woodlands. In two study sites, we evaluated control obtained by glyphosate through a stem-injection technique and c…
Herbicidal derivatives of aminomethylenebisphosphonic acid. Part III. Structure-activity relationship.
1997
Derivatives of aminomethylenebisphosphonic acids constitute a class of promising herbicides. More than 40 N-substituted aminomethylenephosphonic acids were synthesized and evaluated for their herbicidal activity on common cress (Lepidium sativum L.) and cucumber (Cucumis sativus L.). Some of the tested compounds were found to exhibit strong herbicidal properties being equal in activity with the popular herbicide glyphosate as well as parent N-pyridylaminomethylenephosphonic acids. N-Substituted iminodi(methylenephosphonic) acids, which may be considered as close analog of glyphosate, were inactive toward test plants.
Mode of action of herbicidal derivatives of aminomethylenebisphosphonic acid. I. Physiologic activity and inhibition of anthocyanin biosynthesis
1996
N-Pyridylaminomethylenebisphosphonic acids constitute a class of promising herbicides. Since their mode of action at the cellular level is still poorly understood, we studied the influence of N-pyridylaminomethylenebisphosphonic acids on plant growth, at the whole plant and undifferentiated tissue levels, using seedlings and cell suspension cultures of mono- and dicotyledonous species. These compounds exhibited strong herbicidal properties, being equipotent with the popular herbicide glyphosate. Since they also depressed buckweed anthocyanin biosynthesis, the shikimate pathway could represent a site of action of N-pyridylaminomethylenebisphosphonic acids.
Glyphosate : comment sortir de l’impasse ? L’expertise d’un chercheur agronome
2018
International audience
Reportage chaine You tube " Tous Terriens" Arte, "Situation d'impasse en agriculture de conservation"
2020
« Arrêt du glyphosate : les alternatives en Agriculture de conservation des sols », sur Tous Terriens
Reportage chaine You tube " Tous Terriens" Arte, sur l'exploitation de l'agriculteur Alain Krebs, à Suilly-la-Tour, avec les interventions de Stéphan…
2020
« Arrêt du glyphosate : les alternatives en Agriculture de conservation des sols », sur Tous TerriensLes expérimentations conduites au sein de la plateforme CA-SYS et dans le réseau de ses agriculteurs partenaires pour tester les alternatives au glyphosate sont mises à l’honneur dans ce reportage signé du journaliste Pierre Girard (Xenius, sur Arte) pour sa chaîne YouTube « Tous Terriens ».Voir ici le reportage sur l'exploitation de l'agriculteur Alain Krebs, à Suilly-la-Tour, avec les interventions de Stéphane Cordeau sur la plateforme CA-SYS, à Bretenière.
LCP-AN Emission 20h00. "Ca vous regarde : le débat". Spécial sortie du Glyphosate, interview sur terrain. 17 décembre 2020
2020
Invitée : Aurélie Filippetti, ancienne ministre de la Culture, professeure des Universités à Sciences Po, écrivaine. L'un des promesses du président de la République est la sortie du glyphosate en trois ans. 20:05:40 L'INRAE travaille à la recherche d'alternatives à cet herbicide. 20:05:50 Reportage 20:06:16 Interview de Xavier Reboud, chercheur en agroécologie à l'INRAE Dijon. 20:08:06 Retour plateau Aurélie Filippetti dit que ce qui détruit la planète détruit aussi la santé des agriculteurs et notre santé.