The Value of Herbicides in U.S. Crop Production

Gianessi, Leonard; Reigner, Nathan

doi:10.1614/wt-06-130.1

Cited by 208 publications

(199 citation statements)

References 14 publications

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“…This is could be due to their ability to re-germinate promptly from vegetative reproductive structures such as rhizomes or tubers, especially if these structures are dispersed through the field upon cultivation in too wet soil conditions [15]. Moreover, hilling is not effective against weeds within the crop row.…”

Section: Effect On Weed Growthmentioning

confidence: 99%

Reduced Rates of Metribuzin and Time of Hilling Controlled Weeds in Potato

Siblani¹,

Haidar²

2017

AJPS

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The current emphasis on reducing herbicide applications has led to an increase in alternative weed control measures. Field experiment was conducted in the spring of 2014 to examine the effect of hilling-time and reduced-rates of metribuzin and their combinations on weed infestation in potato, and to determine their impact on potato yield. Metribuzin at 0.35, 0.56, or 0.75 kg ai/ha with or without hilling 6, 7, and 8 weeks after planting (WAP) were used. Weed count, weed control visual rating, weed dry weight, potato plant height, number of shoots and leaves, root dry weight, and potato yield were collected. Results showed that metribuzin, at all tested rates, with or without hilling significantly reduced weed infestation after 50, 70, and 110 days after planting (DAP) compared to the check. Best results were obtained by a combination of metribuzin at all tested rates with hilling 6, 7, and 8 WAP. The results suggest that long season weed control and high marketable yield could be achieved by metribuzin at 0.35 kg ai/ha (53% reduction in metribuzin) supplemented with hilling (6 WAP). None of the treatments was toxic to potato plants compared to the hand-weeded plots.

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Section: Effect On Weed Growthmentioning

confidence: 99%

Reduced Rates of Metribuzin and Time of Hilling Controlled Weeds in Potato

Siblani¹,

Haidar²

2017

AJPS

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“…Growers of organic crops cite weed control as their greatest difficulty in crop production because they are not permitted to use chemical herbicides (Gianessi & Reigner (2007). They substitute hand weeding and cultivation for herbicides at a greatly increased cost and with reduced effectiveness.…”

Section: The Costs Of Weed Control In Organic Farming Are More Expensivementioning

confidence: 99%

“…In addition, organic crop growers were unwilling to accept hoeing damage to their vegetable crops and to increase plants spacing because of yields losses. Also, the method is highly expensive if enough labor is used to remove weeds: corn required 150 h ha -1 , cotton 165 h ha -1 , and spinach 516 h ha -1 (Gianessi & Reigner, 2007). Chicouene (2007) have summarized the reviews about mechanical weeding and reported that mechanical weeding is certainly the most immediately applicable method for weed management when using chemicals is undesirable.…”

Section: Mechanical Weedingmentioning

confidence: 99%

“…Many failures of mechanical weeding are linked to neglect of this aspect of management. Cultivation had been shown to reduce the yields of several crops, including potato (Solanum tuberosum) and asparagus (Asparagus officinalis) because of root pruning and crop damage (Gianessi & Reigner, 2007).…”

Section: Mechanical Weedingmentioning

confidence: 99%

“…Weeds were considered the most important pest group in a survey of organic vegetable growers (Gianessi & Reigner, 2007). Worldwide consumption of herbicides represents 47.5% of the 2 million tons of pesticide consumed each year.…”

Section: Introductionmentioning

confidence: 99%

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Weed Control in Clean Agriculture: A Review1

2016

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-Weed control is consider the major obstacle for the growers in the organic farming. Lower plant productivity in organic farming mainly related to the poor weed control. It is widely known, in most cases, that losses caused by weeds exceeded the losses from any category of agricultural pests. Under water-stress condition, weeds can reduce crop yields more than 50% through moisture competition alone. In the light of the environmental and toxicological problems created by herbicides, it has become necessary to develop the safety methods for controlling weeds. Soil Solarization, Mulching, Biodegradable Mulch, Natural Herbicides, Hot Water, and Agronomic Practices have been successfully adopted in many countries as safe methods for controlling weeds in the organic farming. In addition, there are some promising new and non-traditional measures such as Fresnel Lens, Electrical Weed Control, Lasers, etc which could be employed for controlling the weeds in organic farming. Also the agronomic practices such as choice of competitive varieties, stale seedbeds had a significant impact on weeds. The growers in organic farming should keep these three points in mind: 1) start clean stay clean successful, 2) Prevention is always better than treatment and, 3) One year's seeds will lead to seven year's weed infestation. Successful and sustainable weed management systems are those that employ combinations of techniques rather than relying on one method. The objectives of this paper are to review some safe weed control methods in the clean agricultural.Keywords: weeds, Safety methods, Mulch, Soil solarization, Natural herbicides, hot water, non-traditional methods. Palavras-chave: sementes, métodos de segurança, cobertura morta, solarização do solo, herbicidas naturais, água quente, métodos não tradicionais. RESUMO -O controle de plantas daninhas é considerado

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Ecologically sustainable weed management: How do we get from proof‐of‐concept to adoption?

Liebman

Baraibar

Buckley

et al. 2016

Ecological Applications

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Weed management is a critically important activity on both agricultural and non-agricultural lands, but it is faced with a daunting set of challenges: environmental damage caused by control practices, weed resistance to herbicides, accelerated rates of weed dispersal through global trade, and greater weed impacts due to changes in climate and land use. Broad-scale use of new approaches is needed if weed management is to be successful in the coming era. We examine three approaches likely to prove useful for addressing current and future challenges from weeds: diversifying weed management strategies with multiple complementary tactics, developing crop genotypes for enhanced weed suppression, and tailoring management strategies to better accommodate variability in weed spatial distributions. In all three cases, proof-of-concept has long been demonstrated and considerable scientific innovations have been made, but uptake by farmers and land managers has been extremely limited. Impediments to employing these and other ecologically based approaches include inadequate or inappropriate government policy instruments, a lack of market mechanisms, and a paucity of social infrastructure with which to influence learning, decision-making, and actions by farmers and land managers. We offer examples of how these impediments are being addressed in different parts of the world, but note that there is no clear formula for determining which sets of policies, market mechanisms, and educational activities will be effective in various locations. Implementing new approaches for weed management will require multidisciplinary teams comprised of scientists, engineers, economists, sociologists, educators, farmers, land managers, industry personnel, policy makers, and others willing to focus on weeds within whole farming systems and land management units.

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The Value of Herbicides in U.S. Crop Production

Cited by 208 publications

References 14 publications

Reduced Rates of Metribuzin and Time of Hilling Controlled Weeds in Potato

Reduced Rates of Metribuzin and Time of Hilling Controlled Weeds in Potato

Weed Control in Clean Agriculture: A Review1

Ecologically sustainable weed management: How do we get from proof‐of‐concept to adoption?

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