May 2008 - Posts

Friday, May 30, 2008 11:26 AM

Weeds to Watch: Giant Ragweed

Giant ragweed, if left uncontrolled, can grow up to 15 feet in fertile moist soil. Its rapid emergence and fierce competitiveness make it one of the most difficult weeds in U.S. corn and soybean fields. In Kansas, Indiana, Ohio and most recently Minnesota
Posted by Chuck Foresman | 0 Comments
Thursday, May 29, 2008 6:20 PM

Weeds to Watch: Common waterhemp

Glyphosate-resistant common waterhemp was first identified in northwest Missouri in 2006 where weed scientists found plants surviving up to eight times the labeled rate. In the past two years Kansas, Illinois and Minnesota have also confirmed glyphosate-resistant
Posted by Chuck Foresman | 0 Comments
Friday, May 23, 2008 4:10 PM

Horseweed: the impact of glyphosate resistance

Horseweed (marestail) was the first confirmed glyphosate-resistant weed species that caused headlines in the United States. Eight years later, glyphosate-resistant horseweed now exists in 17 different states. It threatens the yield potential of row, tree
Posted by Chuck Foresman | 0 Comments
Wednesday, May 21, 2008 2:59 PM

Weeds to Watch: Common Lambsquarters

In a 2008 Syngenta survey, many growers and retailers commented on the difficulty of controlling common lambsquarters. Even though this hearty broadleaf is not officially resistant to glyphosate, experts believe it is only a matter of time before it joins
Posted by Chuck Foresman | 0 Comments
Tuesday, May 20, 2008 11:50 AM

The Glyphosate Belt

There may be a corn belt, a cotton belt and a bread basket, and now growers are expanding the glyphosate belt. As the use of glyphosate grows each year with such a massive reliance on glyphosate, a greater area becomes at risk to develop glyphosate-resistant
Posted by Chuck Foresman | 0 Comments
Wednesday, May 14, 2008 3:30 PM

Weed Control vs. Weed Management

While growers are tying to make every acre count this year in order to capitalize on high commodity prices, they need to evaluate how they manage weeds. When glyphosate-tolerant crops were first introduced in 1996, the system provided an effective, economical
Posted by Chuck Foresman | 0 Comments
Friday, May 09, 2008 1:37 PM

Increased Glyphosate-tolerant Crop Acres Put Weeds at Higher Risk to Develop Resistance

Glyphosate-resistant crops are planted across most of the acres in the U.S. today. Below are acreage percentages of glyphosate-tolerant crops according to a recent Syngenta survey. · 93 percent soybeans · 85 percent cotton · 62 percent
Posted by Chuck Foresman | 0 Comments
Friday, May 09, 2008 12:38 PM

Giant Ragweed and Waterhemp Confirmed Resistant to Glyphosate in Minnesota

Glyphosate-resistance may follow pattern of other resistant herbicides Jeffery Gunsolus, an agronomist and weed scientist of the University of Minnesota, in AgricultureOnline predicts that the spread of glyphosate-resistant weeds will follow the pattern
Posted by Chuck Foresman | 0 Comments
Tuesday, May 06, 2008 6:09 PM

Start with Clean Fields and Control Weeds Early

Growers are experiencing delayed planting due to a wet spring, and many are anxious to get in the field. As the season moves forward, don’t forget to take care of those early-emerging weeds. Starting with a clean field Because of the delayed planting
Posted by Chuck Foresman | 0 Comments