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Herbicide-resistant Weeds Threaten Soil Conservation Gains

2012 Herbicide resistance
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Release : 2012
Genre : Herbicide resistance
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Book Synopsis Herbicide-resistant Weeds Threaten Soil Conservation Gains by : David Ray Shaw

Download or read book Herbicide-resistant Weeds Threaten Soil Conservation Gains written by David Ray Shaw. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides were developed during the twentieth century to be used with conventional tillage for weed control. Conservation (or minimum) tillage subsequently evolved, which enabled less soil damage when used with herbicides. Selection pressure, however, has resulted in weed species that have made adaptations for survival in conjunction with tillage. The U.S. government has put several federal policies and programs in place that help determine the selection and implementation of crops and conservation programs in relation to herbicides and tillage. This Issue Paper examines the impact of certain weed management practices on soil conservation objectives and addresses ways to mitigate negative effects.

National Summit on Strategies to Manage Herbicide-Resistant Weeds

2012-11-22 Technology & Engineering
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Release : 2012-11-22
Genre : Technology & Engineering
Kind : eBook
Book Rating : 568/5 ( reviews)

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Book Synopsis National Summit on Strategies to Manage Herbicide-Resistant Weeds by : National Research Council

Download or read book National Summit on Strategies to Manage Herbicide-Resistant Weeds written by National Research Council. This book was released on 2012-11-22. Available in PDF, EPUB and Kindle. Book excerpt: Preserving the efficacy of herbicides and of herbicide-resistance technology depends on awareness of the increasing resistance of weeds to herbicides used in agriculture and coordinated action to address the problem by individuals at the farm level and beyond. This summit served as a venue to bring the attention of important stakeholders to the issue and as an opportunity for experts from diverse disciplines to strategize in a coordinated way to address herbicide-resistant weeds. In convening stakeholders for this event, participants took a step toward a recommendation from the 2010 National Research Council report The Impact of Genetically Engineered Crops on Farm Sustainability in the United States that federal and state government agencies, private-sector technology developers, universities, farmer organizations, and other relevant stakeholders collaborate to document emerging weed-resistance problems and to develop cost-effective resistance-management programs and practices that preserve effective weed control. The summit provided the opportunity for stakeholders to explore the scientific basis of the emergence of herbicide resistance and to consider different perspectives on both opportunities and barriers to overcoming the problem of herbicide-resistant weeds. National Summit on Strategies to Manage Herbicide-Resistant Weeds contains a brief synopsis of key points made by each speaker at the summit.

Herbicide Resistance in Weeds and Crops

2017-10-04 Technology & Engineering
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Release : 2017-10-04
Genre : Technology & Engineering
Kind : eBook
Book Rating : 554/5 ( reviews)

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Book Synopsis Herbicide Resistance in Weeds and Crops by : Zvonko Pacanoski

Download or read book Herbicide Resistance in Weeds and Crops written by Zvonko Pacanoski. This book was released on 2017-10-04. Available in PDF, EPUB and Kindle. Book excerpt: Herbicides are the dominant technology and the most effective weed control tools ever developed that are used for the control of weeds that infest crops. Over the last several decades, in situations of intense herbicide usage, there have been many examples of the evolution of weed populations resistant to herbicides. Weed adaptations to management tactics, including biochemical mimicry in the form of evolved resistance to the herbicides used for weed control, have increased rapidly throughout agriculture and now threaten global food security. Nowadays, expended space of research activities remains to focus on the herbicide resistance to weeds and crops. The authors of Herbicide Resistance in Weeds and Crops cover various issues regarding the present relevant research.

Integrating Cover Crops in No-till Corn and Soybean to Diversify Herbicide-Resistant Weed Management in the Mid-Atlantic

2018
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Release : 2018
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Book Synopsis Integrating Cover Crops in No-till Corn and Soybean to Diversify Herbicide-Resistant Weed Management in the Mid-Atlantic by : Jess Marie Bunchek

Download or read book Integrating Cover Crops in No-till Corn and Soybean to Diversify Herbicide-Resistant Weed Management in the Mid-Atlantic written by Jess Marie Bunchek. This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt: Widespread adoption of genetically-engineered, herbicide-resistant (HR) crops have simplified crop rotation diversity and the use of single-tactic, herbicide-based weed management programs. These practices have resulted in an HR weed epidemic, where glyphosate-resistant weeds are especially problematic. Glyphosate-resistant weeds like horseweed [Conyza canadensis (L.)] and pigweeds (Amaranthus spp.) threaten grower productivity and long-term efficacy of common agronomic herbicides. Thus, integrated weed management (IWM) programs that implement both ecological- and herbicide-based tactics are needed in no-till annual grain systems to (1) manage current HR weeds, (2) reduce HR selection pressure for evolution of resistance to other herbicides, (3) preserve effective herbicide technology, (4) enhance environmental stewardship, (5) safeguard soil conservation gains, and (6) maintain farm profits and productivity. To address these goals, we established three field studies at two sites in the Mid-Atlantic and identified combinations of cover crop and herbicide tactics that achieve effective season-long annual weed management, minimize HR selection pressure, and increase sustainability by reducing herbicide inputs. The first two studies assessed the complementarity of cover crops treatments and herbicide programs in corn and soybean, where integrating a cover crop treatment combined with applying a spring, pre-plant burndown herbicide application as well as a POST-emergent application provided the most effective season-long annual weed control. The third study assessed cover crop treatments and varied management practices, such as planting and termination dates, on HR selection pressure reduction at the time of herbicide applications. While cover crops intercepted a portion of the burndown herbicide application from reaching the soil surface, weeds were effectively controlled by the cover crops before the application, thus reducing the HR selection pressure.

Herbicide Resistance in Weeds and Crops

2013-10-22 Technology & Engineering
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Release : 2013-10-22
Genre : Technology & Engineering
Kind : eBook
Book Rating : 09X/5 ( reviews)

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Book Synopsis Herbicide Resistance in Weeds and Crops by : J. C. Caseley

Download or read book Herbicide Resistance in Weeds and Crops written by J. C. Caseley. This book was released on 2013-10-22. Available in PDF, EPUB and Kindle. Book excerpt: Herbicide Resistance in Weeds and Crops is a collection of papers presented at the 11th Long Ashton International Symposium in September 1989. The said symposium is held to study about the increasing incidence of herbicide-resistant weeds and the consideration of the production of herbicide-resistant crops. The book includes studies that suggest the delay and prevention of herbicide resistance; the gravity of the infestation of different herbicide-resistant weed; the management of herbicide resistance; and the mechanisms of herbicide tolerance. Also covered in the book are the improvement of different herbicides, as well as the prospective development of genetically engineered herbicide-resistant plants. Botanists, biochemists, and farmers would greatly benefit from the text, especially those who would like to explore and study the phenomenon.

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