Controlling Volunteer Corn in Soybeans in Glyphosate Tolerant Systems

As was discussed in Ask the Expert earlier this week, it seems that the use of pre-emergence herbicide applications in glyphosate tolerant soybeans is picking up steam as glyphosate-resistant weeds become a reality to more and more growers.  A perhaps equally compelling reason to adopt resistance management practices in soybeans is for control of volunteer glyphosate-tolerant (GT) corn, especially as corn production continues to rapidly expand throughout the U.S. in response to increased demand for ethanol.  Among those acres, GT corn hybrids are being planted on a larger portion of acres.

In a corn and soybean rotation, volunteer corn is becoming a more frequent problem.  In this case using a post-emergence herbicide other than or in combination with glyphosate is most effective, and is also a good resistance management tactic.  These articles, from the University of Illinois Extension and University of Nebraska-Lincoln Extension, discuss specific control options for volunteer GT corn in soybeans.

How has the problem increased in recent years for yourself or your neighbors?  What advice would you give other growers facing increased populations of volunteer GT corn this season?