Resistance Prevention
Glyphosate-resistant Palmer amaranth confirmed in Southwest Michigan
Palmer amaranth, a weed not common to the northern U.S. has been identified and confirmed resistant to glyphosate in Southwest Michigan.
April 26, 2011
Residual herbicides with burndown treatments for soybeans
The use of soil-applied residual herbicides offers growers many benefits for weed control.
May 5, 2011
Free screening for glyphosate-resistant weeds in Michigan
Confirming herbicide-resistant weed populations is the first step of any resistance management program. Verification will provide producers with the knowledge to implement the best possible management strategies, with the ultimate goal of preventing or limiting the spread of herbicideresistant weeds.
September 23, 2010
Horseweed confirmed resistant to glyphosate in Michigan field crops
This past winter two horseweed samples suspected of being resistant to glyphosate were screened and were confirmed resistant to glyphosate. These samples were collected from a no-till soybean field and a stale seed-bed sugarbeet field in Ionia and Gratiot counties. These are the first reports of confirmed glyphosate-resistant horseweed in Michigan field crops.
April 14, 2011
Postemergence herbicide applications in corn- Residual option
Studies conducted at Michigan State showed the highest yields and greatest weed control were observed where a residual herbicide was applied preemergence and followed by either glyphosate or glufosinate postemergence.
June 3, 2010
Consider the addition of a resicual herbicide with burndown treatments in no-till soybean
Reduced glyphosate costs make it tempting to rely only on glyphosate for weed control in no-till Roundup Ready soybean. However, the addition of a residual herbicide with burndown herbicide applications can provide many benefits.
April 29, 2010
Postemergence herbicide application in corn- It's all about timing
The development of stacked trait technology and the increased interest in herbicide tolerant corn has led to an increase in postemergence herbicide applications for weed control. Postemergence programs without a residual herbicide applied at planting have their place, and can provide excellent season long weed control. However, important considerations that should be made include timing, herbicide resistance, and management strategies.
June 4, 2010
Flexstar GT: A new herbicide for postemergence use in Roundup Ready soybean
Specific weeds this premixture may help with control are pigweeds, eastern black nightshade, and common and giant ragweed. Additionally, using the two different herbicide modes of action found in Flexstar GT may also reduce the risk of the development of herbicide-resistant weeds.
May 7, 2009
Soil-applied residual herbicide benefits in soybeans
The use of postemergence (POST) glyphosate in Roundup Ready soybeans has been the primary weed control program used by many Michigan soybean growers. While this system has seemed to simplify weed management, relying on total postemergence herbicide programs can be difficult to manage if not properly implemented.
April 26, 2007
