High-residue cover crops alone or with strategic tillage to manage glyphosate-resistant Palmer amaranth (Amaranthus palmeri) in southeastern cotton (Gossypium hirsutum)

Price, Andrew J.; Monks, C. Dale; Culpepper, A. Stanley; Duzy, Leah M.; Kelton, Jessica A.; Marshall, Michael W.; Steckel, Larry; Sosnoskie, Lynn M.; Nichols, Robert L.

doi:10.2489/jswc.71.1.1

Cited by 33 publications

(46 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, some ongoing work is examining non‐herbicidal means of supplementing weed control. This work is currently focused on two areas, harvest weed seed control and cover crop suppression of weeds . Mechanical weed control has been revived in some areas.…”

Section: Herbicide Resistance In North Americamentioning

confidence: 99%

“…Mechanical weed control has been revived in some areas. Deep plowing has been shown to reduce emergence of small‐seeded weed species such as Palmer amaranth . Inter‐row cultivation in crops such as corn, cotton and soybeans is an effective means of removing many weed species, but is sparsely adopted due to labor concerns .…”

Section: Herbicide Resistance In North Americamentioning

confidence: 99%

“…This work is currently focused on two areas, harvest weed seed control and cover crop suppression of weeds. [154][155][156][157][158] Mechanical weed control has been revived in some areas. Deep plowing has been shown to reduce emergence of small-seeded weed species such as Palmer amaranth.…”

Section: Herbicide Resistance Managementmentioning

confidence: 99%

See 2 more Smart Citations

The challenge of herbicide resistance around the world: a current summary

Peterson¹,

Collavo

Ovejero

et al. 2018

Pest Management Science

263

192

View full text Add to dashboard Cite

Herbicide-resistant weeds have been observed since the early years of synthetic herbicide development in the 1950s and 1960s. Since that time there has been a consistent increase in the number of cases of herbicide resistance and the impact of herbicide-resistant weeds. Although the nature of crop production varies widely around the world, herbicides have become a primary tool for weed control in most areas. Dependence on herbicides continues to increase as global populations migrate away from rural areas to cities and the agricultural labor force declines. This increased use of herbicides and the concurrent selection pressure have resulted in a rise in cases of multiple resistance, leaving some farmers with few or no herbicide options for certain weed infestations. Global population and economic forces drive many farmer choices regarding crop production and weed control. The challenge is how to insert best management practices into the decision-making process while addressing various economic and regulatory needs. This review endeavors to provide a current overview of herbicide resistance challenges in the major crop production areas of the world and discusses some research initiatives designed to address portions of the problem. © 2017 Society of Chemical Industry.

show abstract

Section: Herbicide Resistance In North Americamentioning

confidence: 99%

Section: Herbicide Resistance In North Americamentioning

confidence: 99%

See 1 more Smart Citation

The challenge of herbicide resistance around the world: a current summary

Peterson¹,

Collavo

Ovejero

et al. 2018

Pest Management Science

263

192

View full text Add to dashboard Cite

show abstract

“…The interaction of other weed management options and herbicides should be evaluated. Rotating cotton with crops of high residue cover would reduce early emergence of weeds and integrating this with narrow row spacing would yield desired results as late emerging weeds may have to face intense competition from cotton (Price et al, 2012(Price et al, , 2016.…”

Section: Recommendations Of the Analysis And Future Research Prioritiesmentioning

confidence: 99%

Weed management in cotton (Gossypium hirsutum L.) through weed-crop competition: A review

Manalil

Coast

Werth³

et al. 2017

Crop Protection

View full text Add to dashboard Cite

a b s t r a c tThe agriculture sector is embracing energy efficient conservation systems and technological innovations to meet the ever increasing demand for food, fibre, and fuel in tune with the rapidly increasing human population. The genetic modification of plants is one of the technological innovations that is adopted rapidly across the world. In cotton, many major producing countries have adopted herbicide-tolerant genetically modified crops. Over-reliance on herbicides for weed management in both genetically modified and conventional systems has led to the rapid evolution of herbicide-resistant weeds. Poor weed management can cause up to 90% yield loss in cotton. Undoubtedly, integration of non-chemical methods and diversifying weed control options would ensure the sustainability of available weed management options, including herbicides. Increasing crop competitiveness is one of the approaches that could be integrated with the current weed management systems. Choosing cultivars with early vigour, use of narrow row planting, orienting crop rows with regard to sunlight, and adjusting planting density are some of the approaches that could enhance the competitiveness of crops over weeds. Review of the available literature on cotton indicates weed suppressive benefits by enhancing crop competitiveness through increasing planting density and narrow row spacing. Early canopy closure in narrow row spaced systems would suppress many problem weeds. In addition, herbicide efficacy may be increased due to competition offered by a dense crop stand, which may reduce herbicide selection pressure on weeds. However, the use of narrow row spacing is still in an infant stage in many cottongrowing countries and the success may depend on the environment, soil type, and resource availability. This review analyses and reports the potential benefits of increasing crop competition as a weed management option and also highlights research to be undertaken to ensure the adoption of different strategies on a much wider scale.

show abstract

“…In organic systems, tillage and cultivation, along with other physical and cultural weed management practices, are the primary tactics available to growers for reducing the abundance of weeds in both the emergent community and the soil seedbank (Pekrun and Claupein 2006;Rasmussen 2004;Schutte et al 2014). In conventional systems, in which weed control relies primarily on herbicides, strategic tillage (Price et al 2016) is increasingly being used as part of an integrated weed management strategy (Swanton and Weise 1991) to address the proliferation of glyphosate-resistant weeds (Ganie et al 2016;Norsworthy et al 2012) and to reduce the need for herbicides that can negatively impact the environment (Buhler et al 1992;Soule et al 1990).…”

mentioning

confidence: 99%

Timing of Tillage as a Driver of Weed Communities

et al. 2017

View full text Add to dashboard Cite

Tillage is a foundational management practice in many cropping systems. Although effective at reducing weed populations and preparing a crop seedbed, tillage and cultivation can also dramatically alter weed community composition. We examined the impact of soil tillage timing on weed community structure at four sites across the northeastern United States. Soil was tilled every 2 wk throughout the growing season (late April to late September 2013), and weed seedling density was quantified by species 6 wk after each tillage event. We used a randomized complete block design with four replicates for each tillage-timing treatment; a total of 196 plots were sampled. The timing of tillage was an important factor in shaping weed community composition and structure at all sites. We identified three main periods of tillage timing that resulted in similar communities. Across all sites, total weed density tended to be greatest and weed evenness tended to be lowest when soils were tilled early in the growing season. From the earliest to latest group of timings, total abundance decreased on average from 428 ± 393 to 159 ± 189 plants m −2 , and evenness increased from 0.53 ± 0.25 to 0.72 ± 0.20. The effect of tillage timing on weed species richness varied by site. Our results show that tillage timing affects weed community structure, suggesting that farmers can manage weed communities and the potential for weed interference by adjusting the timing of their tillage and cropping practices.

show abstract

High-residue cover crops alone or with strategic tillage to manage glyphosate-resistant Palmer amaranth (Amaranthus palmeri) in southeastern cotton (Gossypium hirsutum)

Cited by 33 publications

References 42 publications

The challenge of herbicide resistance around the world: a current summary

The challenge of herbicide resistance around the world: a current summary

Weed management in cotton (Gossypium hirsutum L.) through weed-crop competition: A review

Timing of Tillage as a Driver of Weed Communities

Contact Info

Product

Resources

About