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July 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.

Be on the Lookout for the Brown Marmorated Stink Bug

Jul 20, 2011

Dr. Roy Boykin

The growing season is in full swing and the brown marmorated stinkbug (BMSB) has growers across an increasing number of states on the lookout for this pod feeding insect.  

Originally found in China, Korea and Japan, the BMSB was first identified in the U.S. in Pennsylvania in 2001. This invasive species is an excellent hitchhiker and has moved through various forms of transportation, including cars, trucks, campers and trains. Additionally, this pest can live off more than 300 host plants, including a wide range of crops.. Today, the BMSB is believed to have disseminated into 33 states.
If sightings of the BMSB have been reported in your area, it is important to scout early and to be sure you know what to look for.
The adult insect is described as about one-half inch long, shield-shaped and "marbled" brown in color. It is distinguishable from other pests by its alternating black-and-white color pattern on the margins of the abdomen, and its dark-colored antennae marked with light-colored bands.

Similar to other stinkbugs, BMSB nymphs and adults have a piercing-sucking type of mouthpart. In order to obtain plant nutrients, the insects use these mouthparts to pierce the plant in a straw-like fashion. For this reason, damage to host plants from the BMSB is typically small necrotic areas but ranges from leaf stippling, catfacing on tree fruits, seed loss and transmission of plant pathogens, according to research at Rutgers University.

To prevent and stop damage from the BMSB’s insatiable appetite, scout early and act decisively. While you may not always see the insect, be on the lookout for small necrotic spots on leaf surfaces that can often result from feeding damage. Give your fields the best protection from the BMSB by selecting an insecticide that provides three industry-leading technologies that work together to provide fast knockdown and longer residual control, delivering higher potential yield and profit.

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.

Stand Up to Stalk Lodging with a Strobilurin Fungicide

Jul 14, 2011

Eric Tedford

With corn planted later this season into cooler and wetter soils, are you concerned about disease or reduced stalk strength?   
Strobilurin fungicides were designed to provide corn with superior protection and curative abilities against a wide array of yield-robbing diseases. Additionally, other benefits from strobilurin fungicides have been recognized, including improved stalk standability. 
The potential yield loss from decreased standability can put a strain on both your combine as well as your wallet. As Bob Nielson, Purdue University Extension agronomist, stated in an article on the topic, “Annual yield losses due to stalk lodging in the U.S. range between 5 and 25 percent. In addition to outright yield losses, grain quality may also decline as a result of stalk lodging.1
Stronger stalks and longer stand lead to an easier harvest and less potential for stalk breakage or ear fall that results in volunteer corn the following season. Strobilurin fungicides work hard to improve the performance of your corn through broad-spectrum disease control, greater green leaf area and better photosynthesis, as well as increased water use efficiency. All of this impacts the health and strength of the stalk, and will allow you to look forward to stronger stalks, longer stand for greater harvestability and less volunteer corn next season.
1Stalk Lodging in Corn: Guidelines for Preventive Management. Bob Nielsen, Extension Agronomist, and Deb Colville,
Graduate Research Assistant Department of Agronomy, Purdue University. Agronomy Guide Purdue University Cooperative Extension Service AY-262.

Eric Tedford, Fungicide Technical Brand Manager for Syngenta, provides technical leadership for the development of fungicides. His experience includes fungicide research and development for field crops, development of postharvest fungicides, and global technical development of fungicides. He holds bachelors, masters, and doctorate degrees in plant pathology from the University of Massachusetts, Clemson University, and the University of California (Davis), respectively.

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