Effect of Glyphosate on Fusarium Head Blight in Wheat and Barley Under Different Soil Tillages

Bérubé, Marie‐Ève; Vanasse, Anne; Rioux, S.; Bourget, Nicole; Dion, Yves; Tremblay, Gilles

doi:10.1094/pdis-04-11-0297

Cited by 10 publications

(8 citation statements)

References 23 publications

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“…Although largely debated [275], the activity of glyphosate weed control in predisposing plants to Fusarium disease by impairing plant defenses has been demonstrated [276] in both wheat and maize [277,278]. However, other studies reported that glyphosate had no significant effect on the FHB index and DON content in wheat and barley [279].…”

Section: Fusarium Disease and Toxins Managementmentioning

confidence: 99%

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

2016

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Fusarium diseases of small grain cereals and maize cause significant yield losses worldwide. Fusarium infections result in reduced grain yield and contamination with mycotoxins, some of which have a notable impact on human and animal health. Regulations on maximum limits have been established in various countries to protect consumers from the harmful effects of these mycotoxins. Several factors are involved in Fusarium disease and mycotoxin occurrence and among them environmental factors and the agronomic practices have been shown to deeply affect mycotoxin contamination in the field. In the present review particular emphasis will be placed on how environmental conditions and stress factors for the crops can affect Fusarium infection and mycotoxin production, with the aim to provide useful knowledge to develop strategies to prevent mycotoxin accumulation in cereals.Keywords: Fusarium toxins; Fusarium disease; mycotoxin regulation; mycotoxin management Mycotoxigenic Fusarium and Fusarium-Related DiseasesFusarium is one of the most economically important genera of phytopathogenic fungi. Several Fusarium species can infect small grain cereals (wheat, barley and oat) and maize; the predominant species can vary according to crop species involved, geographic region and environmental conditions [1,2]. Fusarium toxins are secondary metabolites produced by toxigenic fungi that naturally contaminate cereals, they represent a source of grave concern in cereals and cereal-based products, resulting in harmful contamination of foods and feedstuffs [3].Fusarium diseases that affect cereal crops are caused by several individual Fusarium or more commonly, co-occurring species. Fusarium spp. can cause indirect losses resulting from seedling blight or reduced seed germination, or direct losses such as seedling foot and stalk rots; however, the most important diseases in cereals due to a severe reduction in yield and quality are head blight of small cereals as wheat, barley and oat, and ear rot of maize [4,5]. The coexistence of different Fusarium spp. in the field is a normal situation and although the number of detectable species can be high [6], only some of them are pathogenic, especially under suitable climatic conditions. The composition of species involved in the Fusarium disease complex is dynamic [7]. The species comprising a Fusarium community associate with each other and this cohabitation is particularly affected by climatic factors such as temperature and moisture. Moreover, evidences indicates that the environmental conditions that favour the infection process can differ from those that affect colonization [8]; therefore, the relationship among Fusarium species may change over time during the infection process.

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Section: Fusarium Disease and Toxins Managementmentioning

confidence: 99%

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

2016

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“…GR soybeans are a rotation crop with cereals, and recent reports have suggested that glyphosate treatment of soybeans increases the occurrence of Fusarium head blight of wheat and barley. 206 , 207 Because of these observations, Bérubé et al 208 tested the effects of tillage and glyphosate treatment of GR soybean on Fusarium head blight development in a subsequent planting of wheat and barley. There was no measurable effect of treating GR soybeans with glyphosate on development of head blight and accumulation of mycotoxins in barley or wheat.…”

Section: Effects Of Glyphosate On Plant Disease In Glyphosate-resistamentioning

confidence: 99%

Glyphosate Effects on Plant Mineral Nutrition, Crop Rhizosphere Microbiota, and Plant Disease in Glyphosate-Resistant Crops

Duke¹,

Lydon²,

Koskinen³

et al. 2012

J. Agric. Food Chem.

236

175

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Claims have been made recently that glyphosate-resistant (GR) crops sometimes have mineral deficiencies and increased plant disease. This review evaluates the literature that is germane to these claims. Our conclusions are: (1) although there is conflicting literature on the effects of glyphosate on mineral nutrition on GR crops, most of the literature indicates that mineral nutrition in GR crops is not affected by either the GR trait or by application of glyphosate; (2) most of the available data support the view that neither the GR transgenes nor glyphosate use in GR crops increases crop disease; and (3) yield data on GR crops do not support the hypotheses that there are substantive mineral nutrition or disease problems that are specific to GR crops.

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“…In minimum-till wheat fields in Canada, the FHB index was higher in fields previously treated with glyphosate (Fernandez et al, 2009a). In another study (Bérubé et al, 2012), glyphosate applied to a soybean crop during the year preceding the wheat crop did not have any effect on the FHB index or DON content. Ryegrass is a widespread weed in wheat-growing regions of Brazil, and glyphosate-resistant ryegrass is common in areas where glyphosate has been applied to agriculturally important crops (Machado et al, 2015).…”

Section: Agricultural Practicesmentioning

confidence: 81%

Fusarium head blight and mycotoxins in wheat: prevention and control strategies across the food chain

Torres

Palacios

Yerkovich

et al. 2019

WMJ

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With 744 million metric tons produced in 2017/2018, bread wheat (Triticum aestivum) and durum wheat (Triticum durum) are the second most widely produced cereal on a global basis. Prevention or control of wheat diseases may have an enormous impact on global food security and safety. Fusarium head blight is an economically debilitating disease of wheat that reduces the quantity and quality of grain harvested, and may lead to contamination with the mycotoxin deoxynivalenol, which affects the health of humans and domesticated animals. Current climate change scenarios predict an increase in the number of epidemics caused by this disease. Multiple strategies are available for managing the disease including cultural practices, planting less-susceptible cultivars, crop rotation, and chemical and biological controls. None of these strategies, however, is completely effective by itself, and an integrated approach incorporating multiple controls simultaneously is the only effective strategy to limit the disease and reduce deoxynivalenol contamination in human food and animal feed chains. This review identifies the available tools and strategies for mitigating the damage that can result from Fusarium head blight.

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Effect of Glyphosate on Fusarium Head Blight in Wheat and Barley Under Different Soil Tillages

Abstract: Bérubé, M.-E., Vanasse, A., Rioux, S., Bourget, N., Dion, Y., and Tremblay, G. 2012. Effect of glyphosate on Fusarium head blight in wheat and barley under different soil tillages. Plant Dis. 96:338-344.

Cited by 10 publications

References 23 publications

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

Fusarium Toxins in Cereals: Occurrence, Legislation, Factors Promoting the Appearance and Their Management

Glyphosate Effects on Plant Mineral Nutrition, Crop Rhizosphere Microbiota, and Plant Disease in Glyphosate-Resistant Crops

Fusarium head blight and mycotoxins in wheat: prevention and control strategies across the food chain

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