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Glyphosate-Resistant Weeds Spreading

In 2007, glyphosate-resistant waterhemp was confirmed in southern Minnesota. It has now spread to west-central Minnesota and continues to increase in frequency due to the continued planting of Monsanto’s Round-up Ready crops and exclusive use of glyphosate.

http://www.sleepyeyenews.com/news/agriculture/x1739184427/Take-control-of-waterhemp

In 2010, glyphosate-resistant giant ragweed was first confirmed on Ontario farms in Essex County.

http://www.youtube.com/watch?v=fCc2HHPyHP0

Irrigators in the Ord Valley of western Australia are attempting to tackle the ongoing issue of patches of awnless barnyard grass, which have developed a resistance to glyphosate.

http://www.abc.net.au/rural/news/content/201105/s3226473.htm

Next month, the University of Tennessee will hold a Weed Tour, covering research on management of glyphosate-resistant horseweed and amaranth.

http://deltafarmpress.com/management/ut-institute-agriculture-hosts-weed-tour

After more than a decade of discussions about glyphosate resistant weeds, three glyphosate-resistant species (horseweed, waterhemp and giant ragweed) have been verified in Iowa. Research conducted by Iowa State and others has confirmed glyphosate-resistance in isolated fields across Iowa.

http://www.extension.iastate.edu/CropNews/2011/0120hartzler.htm

Just as the heavy use of antibiotics contributed to the rise of drug-resistant supergerms, American farmers’ near-ubiquitous use of the weedkiller Roundup has led to the rapid growth of tenacious new superweeds.

http://www.nytimes.com/2010/05/04/business/energy-environment/04weed.html

Mother Nature is pretty clever. So when are we going to smarten up?

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