Economic returns from fungicide application to control foliar fungal diseases in winter wheat

Wegulo, Stephen N.; Zwingman, Michael V.; Breathnach, Julie A.; Baenziger, P. Stephen

doi:10.1016/j.cropro.2011.02.002

Cited by 68 publications

(64 citation statements)

References 17 publications

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“…This confirms their high level of resistance. These results are in agreement with previous reported works [6,13]. F0: no fungicide application and F1; with foliar fungicide treatment.…”

Section: Effect Of Genetic Resistance and Fungicide Application On Yisupporting

confidence: 83%

“…The response of susceptible varieties to fungicide application was variable and depended on specific environmental conditions. Similar results of significant effect of foliar fungicide in controlling yellow rust and other diseases were reported in previous studies [6,8,9]. Despite fungicide application on susceptible varieties, genetic resistance still be the more effective means for disease control and the most reassuring tool for farmers.…”

Section: Effect Of Foliar Fungicide and Genotype On Disease Controlsupporting

confidence: 75%

“…The application of foliar fungicide is profitable when susceptible varieties are planted under environmental conditions favourable for the disease development [6]. Important economic returns from fungicide use were reorted.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Sebei¹,

Ferjaoui²,

Bchini³

2018

WJAR

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Stripe rust caused by Puccinia striiformis, is currently the major foliar disease of spring bread wheat (Triticum aestivum L.) in Tunisia, causing serious yield losses and affecting grain quality. Farmers often use foliar fungicide application or resistant cultivars to counter yield loss, however, this is hampered by a lack of resistant varieties. To investigate the effects of genetic resistance and foliar fungicide application on disease level and yield components, six improved varieties were evaluated at the regional experimental station in Beja during three consecutive growing seasons. Under natural stripe rust infection, three varieties were detected as completely resistant and the others are susceptible. The pathogen affected the leaf area in the susceptible varieties and reduces the above ground biomass at harvest, seed weight and grain yield. Fungicide application reduces the disease severity on the sensitive genotypes and improves biomass, seed weight, grain yield, and harvest index. Yield benefits were much greater in the use of resistant genotypes than fungicide application on the susceptible varieties; consequently the resistance to stripe rust can have more significant benefits to farmer and to the wheat industry.

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“…This confirms their high level of resistance. These results are in agreement with previous reported works [6,13]. F0: no fungicide application and F1; with foliar fungicide treatment.…”

Section: Effect Of Genetic Resistance and Fungicide Application On Yisupporting

confidence: 83%

Section: Effect Of Foliar Fungicide and Genotype On Disease Controlsupporting

confidence: 75%

See 1 more Smart Citation

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Sebei¹,

Ferjaoui²,

Bchini³

2018

WJAR

View full text Add to dashboard Cite

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“…Net returns of up to $239/ha with foliar application of fungicides on winter wheat was also reported [23]. Another similar study indicated net returns being two times the total cost ($2 return on $1 investment) in 85% of the treatments [24]. The findings in this study also agree with these results.…”

Section: Fungicide Spray Application and Marginal Returnsupporting

confidence: 83%

Wheat Yield Response to Foliar Fungicide Application against Leaf Rust Caused by Puccinia triticina

Joshi¹,

Ullah²,

Rehman³

et al. 2017

JAST-A

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Abstract:A study was conducted on reducing the yield loss of wheat due to leaf rust caused by Puccinia triticina with foliar application of fungicides during the 2014-2015 and 2015-2016 growing seasons at the Wheat Research Institute in Faisalabad, Pakistan. Three fungicides: Folicur (tebuconazole) at 300 mL/ha, Nativo (tebuconazole + trifloxystrobin) at 300 g/ha and Tilt (propiconazole) at 500 mL/ha were applied single or two times to Morocco and Sehar-06 wheat varieties used in the trial. The trial plots were first sprayed at the Zadok's scale (ZS) 3 stage and second sprayed between ZS 4.3 and 5.4 stages. The greenness of the trial crop was measured using GreenSeeker. Foliar application of fungicides significantly reduced the loss of grain yield and 1,000-grain weight (TGW) of wheat due to leaf rust in comparison to the control without fungicides application. Of the three fungicides, two times spray of Nativo reduced the grain yield loss of leaf rust susceptible mega wheat variety Sehar-06 by 45%-56% and the loss of TGW by 42%, also giving the highest marginal return in the trial. Single application of Nativo was equally effective as two times spray of Folicur in reducing the loss of wheat grain yield. Two times spray of Folicur was found to be the second choice of fungicide for reducing the yield loss of wheat. The research identified suitable fungicides for reducing the yield loss of wheat due to leaf rust and also generated important scientific knowledge required to manage a sudden outbreak of leaf rust to ensure food security.

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“…Generally, the winter wheat responses were modest with a reduction of 0.8% in leaf disease severity and a 0.06 Mg ha -1 increase for yield (Tables 3 and 5). Foliar fungicide application can significantly increase wheat yields and increase net returns when the risk of leaf disease is high (Fernandez et al, 2014;Wegulo et al, 2011;Weisz et al, 2011). In the current study, foliar fungicides were applied in the fall at a relatively early crop growth stage to determine if mitigation of disease pests in the fall would improve crop productivity, or if the systemic activity of prothioconazole in the plant would provide any benefit.…”

Section: Treatment Effectsmentioning

confidence: 99%

Winter Wheat Yields Are Increased by Seed Treatment and Fall‐Applied Fungicide

et al. 2016

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Poor stand establishment resulting in lower yield is a major constraint to expanding winter wheat (Triticum aestivum L.) land area across the semiarid temperate regions of the northern Great Plains. We conducted a direct-seeded study at nine sites across western Canada totaling 26 environments (site-years) over three growing seasons (2011)(2012)(2013) to observe the responses of the winter wheat cultivar CDC Buteo to fi ve levels of seed treatment (i) Check-no, and (v) dual fungicide/ insecticidal seed treatment: tebuconozole, + metalxyl + imidacloprid; and two levels of fall-applied fungicide (i) Check-no application or (ii) foliar-applied prothioconazole {2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1H-1,2,4-triazole-3-thione} performed in mid-October. Th e check and the fungicide seed treatment, metalaxyl, produced similarly low grain yield resulting in lower net returns, whereas the dual fungicide/insecticide seed treatment provided the highest yield and net returns (CAN+$13 ha -1 ). Fall-applied fungicide improved yield (0.06 Mg ha -1 ), but decreased net returns (-$12 ha -1 ). Plant density increased slightly (13 plants m -2 ) when seed treatments included the insecticide component, imidacloprid. Fall foliar fungicides generally improved spring plant density; however, no benefi t was observed in seed treatments containing imidacloprid. Greater yield and plant stand stability was observed with fall-applied foliar fungicide applications; however, fall foliar would be cost prohibitive. Th e benefi ts of a fall foliar fungicide application requires further exploration in the context of an added input or as an alternative to a spring application as the net returns of a fall foliar compared to no application in the system render the input cost-prohibitive.

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Economic returns from fungicide application to control foliar fungal diseases in winter wheat

Cited by 68 publications

References 17 publications

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Yellow Rust Effects on Grain Yield, and Yield Components of Some Spring Bread Wheat Cultivars under Rainfed Conditions

Wheat Yield Response to Foliar Fungicide Application against Leaf Rust Caused by Puccinia triticina

Winter Wheat Yields Are Increased by Seed Treatment and Fall‐Applied Fungicide

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