From Non-GMO’s guest blogger Deniza Gertsberg, author of the GMO Journal.
A fundamental change occurred when the first genetically engineered crops went commercial in 1996. Farmers who planted GE crops that were altered to withstand continued application of herbicide glyphosate began to rely on a single system for weed management — the use of glyphosate, sold under brand name Roundup and manufactured by Monsanto. As Dr. David A. Mortensen of the Pennsylvania State University noted in his testimony before the Domestic Policy Subcommittee of the Oversight and Government Reform Committee on July 28, 2010, “[i]n evolutionary terms, widespread and persistent glyphosate use without diversity in weed control practices is a strong selection pressure for weeds able to survive glyphosate.” (”Mortensen Testimony”). In other words, get ready for the invasion of superweeds.