RESEARCH TRIANGLE PARK, N.C. (PRWEB) October 15, 2013
International weed-resistance experts warn U.S. crop producers that herbicide-resistant weeds are aggressively taking hold in many parts of the country and pose a significant threat to U.S. crop productivity and profitability. As farmers in other countries have demonstrated, however, these so-called “monster weeds” can be controlled with a combination of conventional and nonconventional farming practices.
Four leading experts shared weed management observations and expertise during the “Weed Resistance in the Americas” panel at the 2013 Farm Progress Show. The event in Decatur, Ill., followed a week-long weed resistance tour of the U.S. and Canada hosted by Bayer CropScience. Panel participants included:
Moderator Arlene Cotie, product development manager with Bayer, said the panelists wanted to educate and urge growers to “take action” to protect their fields and yields.
“One of the greatest threats to yield loss and food security—on a local and global basis—is the development of herbicide-resistant weeds,” Cotie said. “It is a growing global problem that is changing agronomic practices and threatens the long-term viability of economical weed control
and food production.”
Global problem hits home
Resistance by weeds to the widely used herbicide glyphosate has grown over the past two decades. Earlier this year, the Stratus Glyphosate Resistance Tracking study found that nearly half of U.S. farmers surveyed in 2012 reported glyphosate-resistant weeds, up from 34 percent the prior year. Hager confirmed that Illinois farmland has experienced the continued evolution of herbicide-resistant weeds, including waterhemp and Palmer amaranth, which rapidly proliferate due to their biological characteristics and the lack of diversity in tactics used for their control.
“In the Midwest, we see new populations every season that demonstrate resistance to numerous herbicide classes,” Hager said. “We find resistance is not necessarily limited to one herbicide, but in certain species we find resistance to multiple herbicides, effectively eliminating many of the options farmers would have to try to control these populations in their crops.”
The Illinois agronomist and fellow panelists suggested that producers need to think about nonchemical methods to control weeds. “All of the solutions do not come out of a (herbicide spray) nozzle,” Powles said.
The panelists cited diverse weed-management tactics including:
New thinking required
Bayer CropScience advocates similar practices through Respect the Rotation™, an initiative that elevates the importance of grower adoption of herbicide diversity to reinforce the principles of Integrated Weed Management through rotation of crops, herbicide-tolerant traits and modes of action.
“Herbicide-resistant weeds are an unconventional threat to food production that we must fight with conventional and unconventional methods,” said Bayer’s Strek. “Accumulated resistance to multiple herbicides complicates the matter.”
Bayer offers a number of solutions to weed resistance, including seed traits such as Liberty Link®, allowing growers to spray Liberty® herbicide in-crop for nonselective postemergence control of tough weeds.
Additionally, Bayer is working on additional herbicide systems and seed traits including:
“These are new solutions that most of the weeds haven’t seen before,” Strek said. “But we don’t want these solutions to burn out and become ineffective.”
“Bayer wants to be a global leader not only in chemical solutions, but also in stewardship and education,” he said. “We recognize that chemicals are often only a short-term solution. It’s important to educate and train growers about future chemical and nonchemical tools for long-term sustainability of weed control technologies.”
Visit here to learn more about Bayer’s Integrated Weed Management solutions. For additional information and background on other sustainability initiatives please visit http://www.bayercropscience.us/our-commitment/bayer-initiatives. You can also follow and share with us on Twitter @Bayer4CropsUS or connect on the Bayer CropScience social media hub, Bayer Connect.
Bayer CropScience is committed to bringing new technology and solutions for agriculture and non-agricultural uses. For questions concerning the availability and use of products, contact a local Bayer CropScience representative, or visit Bayer CropScience online at bayercropscience.us.
About Bayer CropScience
Bayer is a global enterprise with core competencies in the fields of health care,
agriculture and high-tech materials. This year the company looks back on 150 years of working to fulfill its mission “Bayer: Science For A Better Life”. Bayer CropScience, the subgroup of Bayer AG responsible for the agricultural business, has annual sales of EUR 8,383 million (2012) and is one of the world’s leading innovative crop science companies in the areas of seeds, crop protection and non-agricultural pest control. The company offers an outstanding range of products including high value seeds, innovative crop protection solutions based on chemical and biological modes of action as well as an extensive service backup for modern, sustainable agriculture. In the area of non-agricultural applications, Bayer CropScience has a broad portfolio of products and services to control pests from home and garden to forestry applications. The company has a global workforce of 20,800 and is represented in more than 120 countries. This and further news is available at: press.bayercropscience.com.
Bayer CropScience Media Hotline, 1-877-879-6162, or
Director of Communications & Bayer CropScience NA Coordinator
Tel: (919) 549-2030
Tel: (262) 957-6031
Find more information at http://www.bayercropscience.us.
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