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European Perspectives on the Adoption of Nonchemical Weed Management in Reduced-Tillage Systems for Arable Crops
Cultural control grass weeds nonchemical control
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2015/12/23
Noninversion tillage with tine- or disc-based cultivations prior to crop establishment is the most common way of reducing
tillage for arable cropping systems with small grain cereals, oilseed rape, a...
Weed Management Strategies to Reduce Herbicide Use in Zero-Till Rice–Wheat Cropping Systems of the Indo-Gangetic Plains
Crop geometry crop rotation nonchemical approaches planting dates
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2015/12/23
In the rice–wheat (RW) systems of the Indo-Gangetic Plains of South Asia, conservation tillage practices, including zerotillage (ZT), are being promoted to address emerging problems such as (1) shorta...
Effect of Nitrogen Addition and Weed Interference on Soil Nitrogen and Corn Nitrogen Nutrition
Duration of weed interference nitrogen uptake
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2015/12/23
Weeds cause crop loss indirectly by reducing the quantity of resources available for growth. Quantifying the effects of weed
interference on nitrogen (N) supply, crop growth, and N nutrition may assi...
Seedbank and Field Emergence of Weeds in Glyphosate-Resistant Cropping Systems in the United States
Community structure corn cotton glyphosate-resistant multivariate analysis Non-metric Dimensional Scaling
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2015/12/21
A segment of the debate surrounding the commercialization and use of glyphosate-resistant (GR) crops focuses on the theory that the implementation of these traits is an extension of the intensificatio...
Palmer Amaranth (Amaranthus palmeri) Damage Niche in Illinois Soybean Is Seed Limited
Common garden experiment, genetic and environmental variation geographic range expansion global change weed–crop interference
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2015/12/21
Palmer amaranth, a dioecious summer annual forb, originating in Sonoran desert washes, compromises crop yields in much of the southern United States and its range is expanding northward. Appropriate t...
ALS-Resistant Smallflower Umbrella Sedge (Cyperus difformis) in Arkansas Rice: Physiological and Molecular Basis of Resistance
ALS enzyme assay ALS gene sequencing herbicide resistance mechanism Illumina HiSeq whole-plant bioassay
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2015/12/21
Smallflower umbrella sedge is a problematic weed in direct-seeded rice in the midsouthern United States. It recently has evolved resistance to the acetolactate synthase (ALS) –inhibiting herbicide hal...
Industry Views of Monitoring and Mitigation of Herbicide Resistance
Industry Views Monitoring Mitigation Herbicide Resistance
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2015/12/21
Industry Views of Monitoring and Mitigation of Herbicide Resistance.
Acetolactate Synthase–Inhibitor Resistance in Yellow Nutsedge (Cyperus esculentus): II—Physiognomy and Photoperiodic Response
ALS-inhibiting herbicide-resistant perennial weed hybridization internal transcribed spacer (ITS)
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2015/12/21
Yellow nutsedge is one of the most problematic weedy sedges in rice–soybean systems of the Mississippi Delta region. An acetolactate synthase (ALS)-inhibiting, herbicide-resistant (Res) yellow nutsedg...
Vavilovian Mimicry: Nikolai Vavilov and His Little-Known Impact on Weed Science
Adaptation crop mimicry evolution herbicide resistance Nikolai Vavilov Vavilovian mimicry
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2015/12/21
Nikolai Ivanovich Vavilov was an early 20th century Russian plant scientist who was killed by Joseph Stalin in 1943 for his adherence to basic genetic principles. Vavilov is well known within plant br...
Can Soybean Seeding Rate Be Used as an Integrated Component of Herbicide Resistance Management?
Herbicide-resistant crops integrated weed management PRE residual herbicides weed competition
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2015/12/21
Increased soybean seed cost has generated recent interest in reducing seeding rates to improve economic returns. However, low seeding rates result in reduced established plant stands with slower canop...
Integrating Economics in the Critical Period for Weed Control Concept in Corn
Benin corn–weed competition Germany Gompertz logistic mechanical weeding
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2015/12/21
The effect of weed interference on corn yield and the critical period for weed control (CPWC) were determined in Germany and Benin. Treatments with weed control starting at different crop growth stage...
Review: Confirmation of Resistance to Herbicides and Evaluation of Resistance Levels
Dose–response assay molecular-based assay quick tests sampling whole-plant assay
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2015/12/21
As cases of resistance to herbicides escalate worldwide, there is increasing demand from growers to test for weed resistance and learn how to manage it. Scientists have developed resistance-testing pr...
Advancing Weed Management Strategies Using Metagenomic Techniques
Bioherbicide IPM metagenomics natural products Streptomyces weed control
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2015/12/21
Global occurrences of herbicide resistant weed populations have increased the demand for development of new herbicides targeting novel mechanisms of action. Metagenomic approaches to natural drug disc...
A Glyphosate-Resistant Biotype of Annual Bluegrass in Tennessee
bermudagrass dormant herbicide resistance golf course turf weed control
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2015/12/21
Glyphosate is regularly used to control annual bluegrass populations in dormant bermudagrass turf. A population of annual bluegrass not controlled by glyphosate at 840 g ha−1 (glyphosate resista...
A Waterhemp (Amaranthus tuberculatus) Population Resistant to 2,4-D
Herbicide resistance auxinic herbicides growth regulator herbicides
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2015/12/21
A waterhemp population from a native-grass seed production field in Nebraska was no longer effectively controlled by 2,4-D. Seed was collected from the site, and dose-response studies were conducted t...