et je suis tombé la dessus : http://www.nacaa.com/journal/2008/Kichl ... bean08.pdf
Ca a donc commencé il y a 4 ans.Introduction
Glyphosate-resistant Palmer amaranth (Amaranthus palmeri) was confirmed in Macon County,
Georgia in 2005 (Culpepper et al, 2006). Initially, GR-Palmer amaranth was confirmed on 500
acres in Macon County in 2005 (Culpepper and Brown, 2006). Since 2005, this pest has spread
very quickly across Georgia. As of May 2008, 20 Georgia counties have confirmed GR-Palmer
amaranth populations. (Culpepper, 2008). Palmer amaranth can grow one to two inches a day
and a single female can produce 500,000 seeds making this pest hard to control with
postemergence herbicides (Culpepper et al, 2007).
In 2005, it has been estimated that 87 percent of the soybeans planted in the U.S. were
herbicide tolerant varieties. Growers have reduced the use of residual herbicides in herbicide
tolerant crops and have depended more on postemergence herbicides for weed control. Weed
management programs recommended to control glyphosate-resistant Palmer amaranth depends
on the activation of residual herbicides and timely postemergence herbicide applications.
Dryland producers struggle getting residual herbicides activated making Palmer amaranth
management difficult.
J' imagine combien de tuiles va encore arriver à Monsanto avec ses produits d' ici les 4 prochaines années.
J' espére que cette histoire va arriver aux oreilles de nos députés nationaux , et surtout aux oreilles des députés Européens .
