Weed survey of spring cereals in New Brunswick

Thomas, A. G.; Doohan, Douglas; McCully, Kevin V.

doi:10.7202/706058ar

Cited by 16 publications

(12 citation statements)

References 15 publications

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“…It is common in southern areas of British Columbia, Ontario and Quebec and in the Maritime Provinces. In a weed survey of spring cereals in New Brunswick conducted in the late 1980s, L. vulgare occurred in 54% of fields surveyed and ranked fourth in terms of relative abundance (Thomas et al 1994). Frick et al (1990), surveying weeds in southwestern Ontario under different tillage regimes, found ox-eye daisy at low frequencies in soybean fields under conventional tillage (1.4% frequency).…”

Section: Geographical Distributionmentioning

confidence: 99%

The biology of Canadian weeds. 128. Leucanthemum vulgare Lam.

Clements¹,

Cole²,

King³

et al. 2004

Can. J. Plant Sci.

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Leucanthemum vulgare Lam. (Asteraceae), known as ox-eye daisy, is a familiar perennial herb with white ray florets and yellow disc florets. It commonly inhabits roadside ver ges, pastures and old fields from Newfoundland to British Columbia, and also as far north as the Yukon Territory. Introduced from Europe, L. vulgare was well established in North America by 1800. The Canadian distribution of L. vulgare has expanded in many areas recently, particularly in western Canada. It can form dense populations that may reduce diversity of natural vegetation or pasture quality, and also serves as a host and reservoir for several species of polyphagous gall-forming Meloidogyne nematodes that feed on crops. It is considered a noxious weed under provincial legislation in Quebec, Manitoba, Alberta and British Columbia, as well as under the Canada Seeds Act. Control efforts are sometimes complicated by difficulties in distinguishing ox-eye daisy from some forms of the commercially available Shasta daisy ( L. × superbum).

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Section: Geographical Distributionmentioning

confidence: 99%

The biology of Canadian weeds. 128. Leucanthemum vulgare Lam.

Clements¹,

Cole²,

King³

et al. 2004

Can. J. Plant Sci.

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“…Several studies have shown that some herbicides can have initial phytotoxic effects, although seedlings usually recover without severe damage, and yield loss are not observed (Díaz et al 1992;Ivany et al 2002;Thomas et al 1994;Tonks et al 1991;Volenberg et al 2002;Young et al 2003). In other studies, however, various clover species were exposed and evaluated for tolerance to different herbicides including pendimethalin and metolachlor (Tharp and Kells 2000), bentazon and 2,4-D (Evers et al 1993), 2,4-D and dicamba (Griffin et al 1984), and MCPA and 2,4-DB (Conrad and Stritzke 1980); in all cases, yield and persistence of the legume were markedly reduced.…”

Section: Introductionmentioning

confidence: 99%

Effect of five postemergence herbicides on red clover shoot and root growth in greenhouse studies

Ceballos

Palma

Brevis

et al. 2005

phyto

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Société de protection des plantes du Québec (SPPQ)ISSN 0031-9511 (imprimé) 1710-1603 (numérique) Découvrir la revue Citer cet article Ceballos, R., Palma, G., Brevis, H., Ortega, F. & Quiroz, A. (2004). Effect of five postemergence herbicides on red clover shoot and root growth in greenhouse studies. Phytoprotection, 85(3), 153-160. doi:10.7202 MCPA, 2,4-DB, flumetsulam, bentazon, haloxyfop-methyl, flumetsulam/2,4-DB and bentazon/MCPA were studied in greenhouse experiments in order to evaluate their primary effects on red clover (Trifolium pratense) growth and root injury. The influence of these herbicides on root length, plant height, crown diameter, shoot and root dry weights, shoot phytotoxicity and root injury were studied at two application rates. Variable responses in the growth parameters were observed throughout the experimental period. Herbicides did not affect root length. By the end of experiment, plant height was increased by all herbicides except MCPA and bentazon/MCPA. Crown diameter was increased only with MCPA and 2,4-DB, whereas it was not affected by the other herbicides. Bentazon reduced root dry weight while the other herbicides had no effect. In general, MCPA, bentazon, and bentazon/MCPA reduced shoot dry weight. Although all herbicides caused early foliar damage, the plants recovered by the end of experiment comparable to the control plants. Bentazon and bentazon/MCPA produced the greatest shoot damage. Roots were injured from all herbicides, yet they usually recovered over time. However, bentazon/MCPA induced more severe root injury, up to 17% of the plants, causing seedlings died. These results suggest that some herbicides used to protect red clover against weeds may also affect red clover development, increasing its vulnerability to disease. [Effet de cinq herbicides de postlevée sur la croissance de tiges et de racines du trèfle rouge lors d'essais en serre]Le MCPA, le 2,4-DB, le flumetsulam, le bentazone, le haloxyfop-méthyl, le flumetsulam/2,4-DB et le bentazone/MCPA ont été étudiés lors d'expériences en serre afin d'évaluer leurs principaux effets sur la croissance du trèfle rouge (Trifolium pratense) ainsi que sur les dommages racinaires qu'ils pourraient lui causer. Les conséquences qu'ont ces herbicides sur la longueur des racines, la taille de la plante, le diamètre du collet, les poids secs des tiges et des racines, ainsi que leur phytotoxicité pour les tiges et les dommages aux racines ont été étudiés pour deux doses d'application. Les paramètres de croissance ont eu des résultats indépendants les uns des autres tout au long de la durée des expériences. Les herbicides n'ont pas eu d'effet sur la longueur des racines. À la fin des expériences, la taille de la plante avait été augmentée par tous les herbicides sauf le MCPA et le bentazone/MCPA. Le diamètre du collet n'avait été augmenté que par le MCPA et le 2,4-DB, alors que les autres herbicides n'avaient pas eu d'effet. Le bentazone a fait diminuer le poids sec des racines alors que les autres herbicides n'ont pas eu d'ef...

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“…(Fyles 1989). In New Brunswick, it is associated with understory plant communities of jack pine mixed hardwood forests (MacLean and Wein 1977), and as a common weed of cereal crops (Thomas et al 1994). Rumex acetosella is also commonly associated with lowbush blueberry fields in New Brunswick, Nova Scotia (McCully et al 1991;Jensen and Yarborough 2004), and Newfoundland (Penney et al 2008).…”

Section: Habitatmentioning

confidence: 98%

The Biology of Canadian Weeds. 149. Rumex acetosella L.

et al. 2011

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Stopps, G. J., White, S. N., Clements, D. R. and Upadhyaya, M. K. 2011. The Biology of Canadian weeds. 149. Rumex acetosella L. Can. J. Plant Sci. 91: 1037–1052. Rumex acetosella L., sheep sorrel, is a perennial herb originating from Europe and southwestern Asia, now found in at least 70 countries worldwide. A common weed, it appears in grasslands, pastures, rangelands, waste areas, and along roadsides across North America. It frequently occurs as a weed in lowbush blueberry fields in Atlantic Canada, particularly in Nova Scotia. Rumex acetosella thrives on poor, acidic, and disturbed soils across a broad range of climatic conditions. A persistent seed bank and vegetative reproduction from creeping roots contribute to the ability of R. acetosella to tolerate various methods of control including certain herbicides, fire, and tillage. Tart-tasting leaves, rich in vitamin C have led to the use of R. acetosella in European and North American cultures as both a source of food and a component of herbal medicines. Excessive consumption of the leaves, which contain oxalic acid, can be poisonous to horses and sheep. In addition, R. acetosella is a possible host of the tomato spotted wilt virus, which is detrimental to a variety of vegetable crops.

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Weed survey of spring cereals in New Brunswick

Cited by 16 publications

References 15 publications

The biology of Canadian weeds. 128. Leucanthemum vulgare Lam.

The biology of Canadian weeds. 128. Leucanthemum vulgare Lam.

Effect of five postemergence herbicides on red clover shoot and root growth in greenhouse studies

The Biology of Canadian Weeds. 149. Rumex acetosella L.

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