Wild Mustard,<i>Sinapis arvensis</i>, Control in Common Buckwheat,<i>Fagopyrum esculentum</i>, with Desmedipham and Fluorochloridone

Friesen, G. H.

doi:10.1017/s0890037x00030359

Cited by 6 publications

(10 citation statements)

References 5 publications

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“…Injury by desmedipham at 4 WAT was generally acceptable except in 1994 and 1995 (highest dosage only) at Morden, whereas injury by the other herbicides was generally severe in all trials (Table 2). Desmedipham caused some leaf burn and necrosis around the leaf margins and stunting, similar to that reported by Friesen (1988). Although there were no significant differences in injury levels among dosages, there was a trend for the severity of injury to increase with increasing dosage.…”

Section: Field Studiessupporting

confidence: 82%

“…ha -1 , desmedipham caused an acceptable level of injury to buckwheat, and yields were similar at the two dosages, even though the lowest dosage did not suppress weed biomass as well. Friesen (1988) found that 500 g a.i. ha -1 of desmedipham, when applied at the four-leaf stage of buckwheat, selectively controlled wild mustard without crop yield losses.…”

Section: Field Studiesmentioning

confidence: 99%

“…Desmedipham, a herbicide used in sugarbeet, has shown the greatest potential to selectively control some annual broadleaf weeds in buckwheat when applied at 500 to 1000 g a.i. ha -1 (Friesen and Campbell 1986;Friesen 1988). However, at the 1998 suggested retail price of $358 10 L -1 (150 g a.i.…”

mentioning

confidence: 99%

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Weed management in common buckwheat (Fagopyrum esculentum)

Wall¹,

Smith²

1999

Can. J. Plant Sci.

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Wall, D. A. and Smith, M. A. H. 1999. Weed management in common buckwheat (Fagopyrum esculentum). Can. J. Plant Sci. 79: 455-461. There are currently no broadleaf herbicides registered in Canada for use in common buckwheat (Fagopyrum escu-lentum Moench.). Greenhouse and field studies were conducted from 1994 to 1997 at Morden and Brandon, Manitoba, to investigate potential herbicide treatments for buckwheat when cultural methods fail to control broadleaf weeds. Dose-response studies conducted in the greenhouse showed that buckwheat tolerance to desmedipham was three to five times greater than that of volunteer canola (Brassica napus L. and B. rapa L.), lamb's-quarters (Chenopodium album L.), redroot pigweed (Amaranthus retroflexus L.) and wild mustard (Sinapis arvensis L.). A separate experiment showed that buckwheat cultivars did not differ in tolerance to desmedipham. Another greenhouse study demonstrated that low dosages of bentazon caused severe injury in buck-wheat. In field studies, 500 to 700 g a.i. ha-1 of desmedipham effectively suppressed the annual broadleaf weed biomass in buck-wheat without reducing seed yields. At a low dosage of 300 g a.i. ha-1 of desmedipham there were no yield losses even though no weed biomass reduction was evident. Imazamethabenz at 150 to 250 g a.i. ha-1 and metribuzin at 140 and 210 g a.i. ha-1 severely injured buckwheat and usually reduced yields. 2,4-D at 140 g a.i. ha-1 suppressed weed biomass, but caused severe injury and often reduced buckwheat yield. At 70 g a.i. ha-1 , 2,4-D suppressed weed growth as effectively as the higher dosage with less visual injury, but sometimes reduced buckwheat yields. Thus, desmedipham is the most promising postemergence broadleaf herbicide for use in common buckwheat. Wall, D. A. et Smith, M. A. H. 1999. Maîtrise des mauvaises herbes dans les cultures de sarrasin (Fagopyrum esculentum). Can. J. Plant Sci. 79: 455-461. Il n'existe actuellement aucun herbicide antidicotylédones homologué pour le désherbage du sar-rasin (Fagopyrum esculentum Moench.). Des expériences en serre et au champ ont été réalisées à Morden (Manitoba) de 1994 à 1997 pour examiner divers traitements herbicides pour cette culture advenant l'échec des méthodes culturales contre les mauvais-es herbes dicotylédones. Des études dose-réponse menées en serre ont montré que la tolérance du sarrasin au desmédiphame était 3 à 5 fois plus forte que celle des repousses de canola (Brassica napus L. et B. rapa L.), du chénopode blanc (Chenopodium album L.), de l'amarante à racine rouge (Amaranthus retroflexus L.) et de la moutarde des champs (Sinapis arvensis L.). Une expérience distincte a permis de constater que les cultivars de sarrazin ne différaient pas quant au degré de tolérance au desmédiphame. Dans une autre expérience en serre, on a constaté que même à faible dose, le bentazone endommageait gravement le sarrasin. Dans les expériences au champ, le desmédiphame aux doses de 500 à 700 g m.a. ha-1 était efficace contre les dicotylédones annuelles dans le sarrasin, sans réduire...

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Section: Field Studiessupporting

confidence: 82%

Section: Field Studiesmentioning

confidence: 99%

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Weed management in common buckwheat (Fagopyrum esculentum)

Wall¹,

Smith²

1999

Can. J. Plant Sci.

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“…Weed control was similar with the tank mixes and each sulfonylurea herbicide alone. In Manitoba, Friesen (1988a) reported that desmedipham, applied at 0.5 kg a.i.…”

Section: Response To Herbicides and Other Chemicalsmentioning

confidence: 99%

The biology of Canadian weeds. 8. Sinapis arvensis. L. (updated)

Warwick¹,

Beckie²,

Thomas³

et al. 2000

Can. J. Plant Sci.

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. An updated review of biological information is provided for Sinapis arvensis L. Native to the Old World, the species is widely introduced and naturalized in temperate regions around the world. The species occurs in all the provinces, the Northwest Territories, and the Yukon. It is an important weed of field crops in the Canadian prairies. A strongly persistent seedbank, competitive annual growth habit and high fecundity all contribute to its weedy nature and ensure that it will be a continuing problem. Several cases of herbicide resistance have been documented for natural populations of S. arvensis in Canada, including biotypes resistant to: i) Group 2 herbicides, which inhibit acetolactate synthase (ALS), from Manitoba in 1992 and Alberta in 1993; ii) Group 4 herbicides or synthetic auxins from Manitoba in 1991; and iii) Group 5 herbicides, which inhibit photosynthesis at photosystem II, from Ontario in 1983. The species is a close relative of Brassica nigra (L.) Koch, black mustard, and is capable of limited genetic exchange with the Brassica crop species under laboratory hybridization conditions either by conventional crossing or with the aid of ovary/embryo recovery techniques.

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“…Wild buckwheat (Polygonum convolvulus L.), which is tolerant to phenoxy herbicides, occurs commonly in wheat throughout temperate agricultural regions (3,6,7), Picloram, applied early postemergence at 17 g ae ha" 1 or more, controls wild buckwheat but is often mixed with 2,4-D to increase the spectrum of weeds controlled (1,4,8,9).…”

Section: Introductionmentioning

confidence: 99%

Winter Wheat (Triticum aestivum) Response to Picloram and 2,4-D

Heering

Peeper

1991

Weed technol.

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Postemergence spring applications of picloram and picloram plus 2,4-D frequently reduced mature height and peduncle length of hard red winter wheat in field experiments. Yield reductions were more severe from picloram applied alone to the first joint growth stage than late tillering stage wheat. In two of six experiments picloram plus 2,4-D reduced yield more than picloram alone. Yields of four wheat cultivars were reduced by picloram and picloram plus 2,4-D at one of two locations. At the second location only the yield of ‘Chisholm’ and ‘Rohm and Haas Seed 7837’ were reduced by those herbicides.

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Wild Mustard,Sinapis arvensis, Control in Common Buckwheat,Fagopyrum esculentum, with Desmedipham and Fluorochloridone

Cited by 6 publications

References 5 publications

Weed management in common buckwheat (Fagopyrum esculentum)

Weed management in common buckwheat (Fagopyrum esculentum)

The biology of Canadian weeds. 8. Sinapis arvensis. L. (updated)

Winter Wheat (Triticum aestivum) Response to Picloram and 2,4-D

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