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March 2011 Archive for Syngenta Field Report

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The Syngenta Field Report features information and experts from Syngenta sharing observations about issues growers are dealing with in the fields.

It may have been a while…

Mar 30, 2011

Gordon Vail

Although it hasn’t quite been a full generation, if you are like many growers, you have to think about when you last used pre-emergence herbicides. It’s been more than a decade since some people have used pre-emergence residual herbicides – especially in soybeans.
 
So, be sure that you – or your operator – know how to use the herbicides you’ve chosen for 2011. Pre-emerge residuals are very effective, but they must be applied correctly to get maximum weed control without crop injury. Flexible herbicides with a wide application window are a good choice, if you are concerned about application timing.
 

Why choose a “pre” this season? It not only controls weeds glyphosate-resistant weeds, it also reduces early-season weed competition and allows a post-emergence application to be more effective.

Worried about soybean insect pests?

Mar 22, 2011

Dr. Roy Boykin

With spring just around the corner, March bodes to bring the first signs of warm weather that will begin to thaw the frosty earth and bring blooms to bare trees. However, with the environmental rebirth that occurs each spring comes the inevitable return of a few unwelcome visitors – soybean insect pests
If your fields are typically threatened by damaging soybean insect pests, a reliable and effective insecticide is a top priority. Once threshold levels have been reached, soybean pests such as soybean aphid, bean leaf beetle and stinkbugs, can rapidly reduce soybean yields. Soybean aphid populations can double every two to three days if conditions are favorable. Even a weekly scouting trip can miss this exponential population growth. A University of Missouri Extension publication states bean leaf beetle can cause complete pod loss by feeding at the base of the pod, a process known as “pod clipping.” Pod clipping creates pod lesions, making the plant more susceptible to pathogens such as bean pod mottle virus and southern mosaic virus. Stinkbugs target the soybean pod as well, using their piercing mouthparts to remove fluids from developing pods. 
The most effective option for controlling insect outbreaks is to choose an insecticidethat offers the trans-stemic  movement of thiamethoxam throughout soybean leaves. Thiamethoxam quickly penetrates the outer leaf surface and, once inside the leaf, forms a reservoir of active ingredient. This reservoir of active ingredient is then protected from environmental factors like wash off from rain and UV degradation from sunlight.
 
The diagram above compares thiamethoxam with two other active ingredients. Seventy-two hours after the application, a significantly higher percentage of the thiamethoxam applied has moved from the leaf surface and into the interior of the leaf than the other two active ingredients. The trans-stemic uptake of the thiamethoxam can then provide longer residual control of economically damaging insects feeding on both the upper and lower leaf surfaces while having minimal impact on beneficial insects as they move across the leaf surfaces.
 

While impending warm weather may have you worried about insects impacting your soybean yields this season, you can trust an insecticide with three industry-leading technologies, that includes thiamethoxam, for optimal control of a broad-spectrum of soybean insect pests.


Dr. Roy Boykin, Senior Technical Brand Manager, Insecticides, Syngenta Crop Protection
Roy is responsible for the technical development, positioning and product life cycle management of insecticides for all business units in the NAFTA Region. Roy received his undergraduate education at the College of Charleston with majors in biology and business and received his master’s/doctorate degrees in entomology with minors in plant pathology and crop science from North Carolina State University.

Corn nematode protection boosts yield

Mar 15, 2011

Dr. Palle Pedersen

After the 2010 season, we’ve had four years of test plots to see the value of protecting corn crops from nematodes. We’ve consistently seen incremental yield increases with a corn nematicide/insecticide/fungicide seed treatment combination compared to just the industry standard insecticide/fungicide combination.

2010 yield results varied across the country, but over time we’ve seen an average 5.1 bu/A increase on 85 percent of acres. Pretty good odds for a return on your investment.

Nematode protection helps most when early-season stress, like low moisture, is combined with nematode feeding. Although planting conditions and spring weather are unpredictable, you know stress of some sort is likely. Will you be looking at nematode protection in your 2011 corn crop?

Photo: Stalks selected at random from large block trial by Syngenta. 


Palle Pedersen, Ph.D., Technical Manager, Syngenta Seedcare
Dr. Palle Pedersen, Syngenta Seedcare technical manager, is responsible for technical seed treatment development for corn, soybeans, sorghum, sunflowers and canola. Previously, Palle spent seven years as an associate professor at Iowa State University where he coordinated and provided state leadership in soybean production and management, splitting his time between extension work and research. Palle received his undergraduate degree and master’s degree in agricultural science from the Royal Veterinary and Agricultural University in Denmark, his master’s in agricultural economics from Wye College, England, and his doctorate in agronomy from the University of Wisconsin-Madison.

2010 Resistance Fighter of the Year Winners

Mar 08, 2011

Chuck Foresman

As manager for weed resistance strategies for Syngenta, my number one priority is helping producers fight weed resistance.  But, obviously, the war on glyphosate resistance cannot be fought by one person.  Syngenta understands that consultants, retailers and county extension agents across the U.S. are playing a vital role in helping producers combat weed resistance and believes they deserve to be recognized for their efforts.  That is why we launched The Resistance Fighter of the Year program.

Once again, we received top-notch nominations for individuals who are making a significant difference in their region and, in many cases, beyond.  After much deliberation, our judging panel of Syngenta personnel, university weed scientists and former Resistance Fighters of the Year selected:
  • Southern winner Keith Baioni, business manager of crop protection products, for Jimmy Sanders, Cleveland, Miss.
  • Northern winner Steve Muhlenbruch, agronomist for Farmer's Cooperative Company, Dows, Iowa
Both Keith and Steve have built their weed resistance management efforts on a strong foundation of education and one-on-one advising.  They utilize all tools at their disposal and continue to look for new ways to stay ahead of resistant weeds.  Because of their efforts, producers are turning back the tide on resistance and seeing the benefits of sound weed management.
 

Syngenta Manager of Weed Resistance Strategies Chuck Foresman is an expert in weed resistance, having worked extensively with many universities and research associates around the globe on the subject. He holds a bachelor's degree in agronomy from Western Illinois University along with a master's degree in agronomy from the University of Wisconsin.
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