In areas where soybeans are still in the field and weeds still have some gree in them, there is a potential for problems when the combine starts rolling, says Penn State University weed expert Bill Curran.

Many might consider 2,4-D a dinosaur, but it may be the best solution for growers fighting weed resistance today, said Dean Riechers, University of Illinois associate professor of weed physiology.

Waterhemp has been present in Indiana field surveys for at least the last 10 years but recent control issues with glyphosate is moving this weed up on the radar of concern for Indiana growers.

You may have only 3 years left. No, I'm not talking about attractive corn and soybean prices. I'm talking about something that could really eat away at your bottom line.

We are now limited to herbicide treatments that can be applied just prior to harvest to help dry down weed vegetation prior to a killing frost.

Glyphosate herbicide was found in significant levels in Mississippi as part of a U.S. Geological Survey Office (USGS) project, and the findings have been submitted to the Environmental Protection Agency to be used as part of the agency's evaluation of the registration of glyphosate.

The list of herbicide active ingredients available for pre-harvest applications in corn or soybeans is relatively short, says University of Illinois Extension weed specialist Aaron Hager.