August 26, 2008 Roundup-Resistant Weeds Pose Challenge for SD Soybean Farmers.

The discovery of South Dakota's first Roundup-resistant weed emphasizes the need for producers around the state to manage herbicides with care, according to a South Dakota State University Extension weed specialist. Glyphosate-resistant common ragweed was found in a soybean field in Charles Mix County this spring, and Extension specialist Mike Moechnig said the discovery has implications for producers across the state.

 

May 20, 2008 Weed Control in Corn and Wet Field Conditions.

The persistent rains across much of Illinois have delayed corn planting and, in many areas, have also delayed implementation of weed control practices. The planting delays caused by wet soil conditions make it likely that some percentage of corn fields were (or will be) planted before any herbicide has been applied.

 

May 20, 2008 Watch Fields Closely If You Delay Weed Control.

With planting delayed by wet weather, there's a mad rush to get the crop in the ground and worry about weed control later.

 

May 20, 2008 Giant Ragweed with Resistance to PPO and ALS inhibiting Herbicides.

Some growers and dealers have been reporting reduced control of giant ragweed with PPO-inhibiting herbicides (Cobra, Flexstar, and Reflex) the last few years in non-GMO soybeans.

 

April 15, 2008 Is a Residual Herbicide in Your Future?

The benefits of residual herbicides are well known. In recent years, we have become more acutely aware of their value to our cropping systems. Herbicide resistance in other states besides Louisiana has brought into sharp focus the need to rotate modes of action, use residuals, and stop the reliance on glyphosate as the only means of chemical weed control.

 

March 25, 2008 Sky's the Limit

From better weed resistance, bug defenses and stronger disease control to traits for heart-healthy oil, biofuels and yields out the wazoo, future soybean lines should keep growers smiling as much as today's new plateau of prices.

 

March 25, 2008 Update for Field Crops and Their Pests

It appears that we are going through a sea of change this year in soybean weed control. In an informal phone survey of a number of Ag retailers in Tennessee we are seeing Pre applied herbicides that provide soil residual weed control increase from about 10% in 2007 to 70% this spring. Most of these will be applied during the early burndowns that are going out now.

 

March 25, 2008 Farmers Face Glyphosate Price Hike

Fuel and fertilizer price increases are being joined by rising prices for glyphosate herbicide in 2008. After years of price declines for the widely-used weed control product, farmers are facing sticker shock as suppliers struggle to keep up with strong demand. Prices for generic glyphosate have doubled since last year and Monsanto-branded Roundup has jumped 30% in price.

 

March 20, 2008 Glyphosate Resistant Johnsongrass Confirmed in Two Locations.

The University of Arkansas and Monsanto have confirmed glyphosate resistant johnsongrass in a field in southeast Arkansas. In a separate case, Monsanto and specialists at Mississippi State University confirm a case of johnsongrass resistance to glyphosate near Clarksdale, Mississippi.

 

February 26, 2008 Glyphosate price spikes recast merits of soybean herbicide split strategy.

Higher glyphosate costs are closing the price gap between the double postemergence glyphosate treatment and a preemergence/postemergence glyphosate treatment in soybeans, says Kevin Bradley, University of Missouri Extension weed scientist.

 

February 26, 2008 Weed Wackers

Missouri farmers struggling with waterhemp issues have a new resource for information thanks to the efforts of university weed scientists Kevin Bradley with University of Missouri, Bob Hartzler with Iowa State University and Dawn Nordby with University of Illinois. The result of this collaboration is "Biology and Management of Waterhemp," a brochure created to help farmers minimize yield losses from waterhemp and manage the development of herbicide resistance.

 

February 26, 2008 Wisconsin Farmers and Agri-Business Call for Glyphosate (Roundup) Stewardship

The wide scale adoption of Roundup Ready crops by Wisconsin farmers is unprecedented. Since their introduction in 1996, Roundup Ready soybean acreage has steadily increased and is now approximately 85 percent of Wisconsin’s total soybean acreage. Adoption of Roundup Ready corn, released in 1998, hasn’t been as rapid, but it represents approximately 10% of Wisconsin’s total corn acreage.

 

May, 2006 Control of Common Waterhemp and Lambsquarters in Roundup Ready® Soybean.

While excellent weed control has commonly been achieved in soybean fields with the use of glyphosate alone, common lambsquarters and common waterhemp have occasionally escaped single or multiple glyphosate applications. Experiments were conducted by Monsanto Company and university researchers in 2005 to determine how residual herbicides affect the density of these weeds at post glyphosate application timing.

 

April 28, 2006 The Status of Glyphosate-tolerant Palmer Amaranth (Palmer pigweed)

As part of our stewardship commitment to you, we want to keep you posted on the latest information regarding glyphosate-resistant Palmer amaranth (Palmer pigweed).

 

September 23, 2005 Monsanto and University of Missouri Investigate Case of Difficult To Control Waterhemp In Missouri

Monsanto and the University of Missouri are investigating a potential case of glyphosate-resistant waterhemp on two fields in northwest Missouri. In initial greenhouse trials, the waterhemp plants were not controlled at labeled rates. Field and heritability studies are needed to determine if these populations are resistant to glyphosate.

 

July 26, 2005 Investigations Continue on Case of Difficult to Control Palmer Pigweed in Georgia

Monsanto and the University of Georgia are investigating a probable case of glyphosate-resistant Palmer amaranth (Palmer pigweed) at specific sites in central Georgia. Preliminary findings of field and greenhouse trials show a lack of control at labeled rates. Additional work regarding heritability-whether the lack of control is passed on to the next generation-is needed to confirm resistance.

 

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