More in Weed Resistance

  Information presented recently on the Web and in seminars across the Midwest has portrayed devastating consequences due to the widespread use of glyphosate and glyphosate resistant crops. It is important to recognize that there is little data published in refereed journals to support these claims. Data that are available have been taken greatly out of context to support the accusations....More

The early weeds in corn are too small to hurt anything, right?Wrong. Very wrong, according to Corn Belt weed scientists. “Early season weed control is vital to both future yields and profitability, because early weed flushes compete intensely with corn for both nitrogen (N) and water,” says Jeff Gunsolus, University of Minnesota Extension weed scientist. “Dense weeds can also shade soils and make them cooler so that corn grows more slowly.”...More

If you have been growing corn and soybean or advising growers for several decades, it’s possible to remember how the ease of controlling weeds has switched back and forth between the two crops. There have been periods when control is easier in corn than soybeans (early days of atrazine) and then those when the reverse has been true (early days of Roundup Ready soybeans). The development of glyphosate resistance issues has resulted in a trend where currently several weeds are more effectively and/or less expensively controlled in corn than in soybeans....More

They pop up in farm fields across 22 states, and they’ve been called the single largest threat to production agriculture that farmers have ever seen. They are “superweeds” – undesirable plants that can tolerate multiple herbicides, including the popular gylphosate, also known as Roundup – and they cost time and money because the only real solution is for farmers to plow them out of the field before they suffocate corn, soybeans or cotton....More

The new year is well on its way and I imagine that means you’re hitting every winter meeting possible to stay on top of your game. Before you get too far into 2011, maybe it’s a good idea to take a breath and look back at 2010. It might help you get a better perspective on how agriculture has coped during the recession compared to what most other industries have gone through. Granted, you already know agriculture has fared pretty well, but how well?...More

Fall herbicide applications are becoming a common practice for Illinois farmers. Recent interest has focused on applying herbicides after fall harvest to control winter annual weed species, such as common chickweed, henbit and various mustard species....More

The list of herbicide resistance in waterhemp populations is growing. University of Illinois (U of I) weed scientists...More

As U.S. growers wrap up planting an estimated 90 million acres of corn this spring, there’s a good chance many of those...More

Growers who got their corn in the ground, but missed their window to apply pre-emergent herbicides to control weeds...More

Recovery from the frost damage that occurred on May 9 across the Upper Midwest has been quite slow, due to extended...More