Roundup's potency declines and foils U.S. farmers
http://www.gmwatch.org, 30.07.2010

Glyphosate resistance threatens Roundup hegemony
Nature Biotechnology, Volume 28 Number 6, JUNE 2010

Genetically Engineered Backslide: The Impact of Glyphosate-Resistant Palmer Pigweed on Agriculture in the United States

By Edward Hammond, TWN Biotechnology & Biosafety Series, 2010

The resistance to resistance: What is a weed?
23.06.2010, Dennis Keeney

Monsanto's Glyphosate Problems: Scientist Warns of Dire Consequences with Widespread Use

By Ken Roseboro, ed.
The Organic and Non-GMO Report,  14/06/2010

Superweeds Threaten U.S. Farms
Spray-resistant superweeds hit the U.S. farm belt hard, with big issues for food and chemicals.
Monday, June 7, 2010

Scientist warns of dire consequences with widespread use of glyphosate

Powles: weed resistance will worsen
Mar 4, 2010 9:46 AM, By David Bennett, Farm Press Editorial Staff

Weeds Are Now Resisting Monsanto Weed Killer, Spurring Crisis in American Agriculture

Superchwasty w USA
By Susie Madrak, Wednesday, May 05, 2010

Invasion of the Superweeds

Inwazja superchwastów

Farmers Cope With Roundup-Resistant Weeds
By WILLIAM NEUMAN and ANDREW POLLACK, May 3, 2010

­Herbicide Used in Argentina Could Cause Birth Defects
­Guest Editorial by TraceConsult™: Glyfosat-Weckruf
Freitag, 30. April 2010

International Survey of Herbicide Resistant Weeds
http://www.weedscience.org/In.asp

Resistant Weeds Globally
http://www.weedscience.org/summary/countrysummary.asp

Managing Herbicide Resistant Weeds in Iowa
http://www.weedscience.org/usa/State.asp?StateID=13#Table 1

Glyphosate Resistant Weeds
http://www.weedscience.org/glyphosate.gif

Resistant weeds threaten to cripple Iowa's agriculture economy
Chwasty odporne na glyphosat zagrożeniem dla rolnictwa w stanie Iowa
Lynda Waddington
The Iowa Independent, 10 III 2010

Ban on glyphosate spraying near town in Argentina
Zakaz stosowania glyphosatu w pobliżu miast w Argentynie
18 III 2010

"Impacts of Genetically Engineered Crops on Pesticide Use: The First Thirteen Years"  November 2009

­Monsanto Soy Herbicide Could Pose Health Risks, Study Released in Argentina Puts Glyphosate Under Fire
Marie Trigona, July 13, 2009, Americas Program, Center for International Policy (CIP)