Plot size can influence yield benefits from fungicides on corn

Tedford, E. C.; Kriss, Alissa B.; Geater, Chad; Saini, Monika; Battles, Bruce; Smelser, Richard B.; Fithian, Wayne A.

doi:10.1016/j.cropro.2016.09.017

Cited by 23 publications

(21 citation statements)

References 24 publications

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“…Similarly, Martínez reported an increase in the yield of rice from 5 to 10%. Furthermore, Tedford et al . determined that the yield increase in corn crops was enough to mitigate the investment in fungicides.…”

Section: Resultsmentioning

confidence: 99%

“…Similarly, Martínez 22 reported an increase in the yield of rice from 5 to 10%. Furthermore, Tedford et al 23 determined that the yield increase in corn crops was enough to mitigate the investment in fungicides. In contrast, Barickman et al 24 reported an increase in the yield of a pumpkin crop treated against powdery mildew with a chemical fungicide, but this increase was not observed when biofungicides were applied.…”

Section: Resultsmentioning

confidence: 99%

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Evaluating a preventive biological control agent applied on grapevines against Botrytis cinerea and its influence on winemaking

et al. 2018

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BACKGROUND This research was aimed to study the influence on grape and wine quality and on the fermentation processes of the application of a preventive biological treatment against Botrytis cinerea in Tempranillo Rioja grapevines. For this purpose, a biofungicide containing Bacillus subtilis QST713 was applied twice to the vineyard. RESULTS Results were compared with non‐treated samples from the same vineyard and with samples treated with a chemical fungicide composed of fenhexamid. Data showed that general grape quality and spontaneous alcoholic fermentation performance were not influenced by either fungicide application. The chemical fungicide had a considerable influence on the clonal diversity of Saccharomyces cerevisiae species, which led to the alcoholic fermentation. Furthermore, it caused longer malolactic fermentation than with the biological fungicide and in the control. The biofungicide made malolactic fermentation 1 day shorter because the establishment of the commercial lactic acid bacteria used as a starter culture was total. After malolactic fermentation, the wines did not show significant differences in general oenological parameters. CONCLUSION Preventive biofungicide treatment against B. cinerea did not negatively influence the quality of grapes and wines and the fermentation processes. Therefore, biological control of B. cinerea with B. subtilis applied on grapevines could be advisable in oenological terms. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Evaluating a preventive biological control agent applied on grapevines against Botrytis cinerea and its influence on winemaking

et al. 2018

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“…The probability of recovering the investment on the fungicide program was also determined based on the effect size () and between study heterogeneity () estimated from the meta-analyses [6]. Fungicide class and timing were significant ( P <0.05), thus, the probability was estimated for QoI and DMI + QoI fungicide classes and timings that were significantly different from each other (Table 4) using a range of application costs and corn market prices.…”

Section: Methodsmentioning

confidence: 99%

“…Foliar fungicide applications in corn have been promoted at one or more timings ranging from early vegetative to late reproductive growth stages. The primary purpose of early vegetative stage (three-leaf collar to eight leaf collar growth stages; V3-V8; [5]) applications is to gain yield advantages from physiological benefits [6], while fungicide applications at the tasseling-silking corn growth stage (VT-R1) target both foliar disease management and yield gain from physiological response to fungicide [7]. Previous studies have indicated applications occurring at VT-R1 are most likely to be profitable when conditions favor disease development, such as planting hybrids susceptible to foliar diseases like gray leaf spot (caused by Cercospora zeae-maydis ), northern corn leaf blight (caused by Exserohilum turcicum ) and southern rust (caused by Puccinia polysora ), planting into fields with high levels of corn residue, irrigated fields, and/or fields under continuous corn production [3, 7].…”

Section: Introductionmentioning

confidence: 99%

“…Due to the complexity of analyzing data from numerous trials across locations that might differ in experimental design, meta-analysis has emerged as a useful tool in phytopathology to analyze large, multi-site year datasets [6, 7, 16, 17]. Originally developed for the social sciences, meta-analysis has become important for phytopathologists who deal with large, complex, multi-site analyses, especially when determining fungicide efficacy across numerous environments [18, 19].…”

Section: Introductionmentioning

confidence: 99%

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Meta-analysis of yield response of foliar fungicide-treated hybrid corn in the United States and Ontario, Canada

et al. 2019

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Background Foliar fungicide applications to corn ( Zea mays L.) occur at one or more application timings ranging from early vegetative growth stages to mid-reproductive stages. Previous studies indicated that fungicide applications are profitable under high disease pressure when applied during the tasseling to silking growth stages. Few comprehensive studies in corn have examined the impact of fungicide applications at an early vegetative growth stage (V6) compared to late application timings (VT) for yield response and return on fungicide investment (ROI) across multiple locations. Objective Compare yield response of fungicide application timing across multiple fungicide classes and calculate the probability of positive ROI. Methods Data were collected specifically for this analysis using a uniform protocol conducted in 13 states in the United States and one province in Canada from 2014–2015. Data were subjected to a primary mixed-model analysis of variance. Subsequent univariate meta-analyses, with and without moderator variables, were performed using standard meta-analytic procedures. Follow-up power and prediction analyses were performed to aid interpretation and development of management recommendations. Results Fungicide application resulted in a range of yield responses from -2,683.0 to 3,230.9 kg/ha relative to the non-treated control, with 68.2% of these responses being positive. Evidence suggests that all three moderator variables tested (application timing, fungicide class, and disease base level), had some effect (α = 0.05) on the absolute difference in yield between fungicide treated and non-treated plots ( ). Application timing influenced , with V6 + VT and the VT application timings resulting in greater yield responses than the V6 application timing alone. Fungicide formulations that combined demethylation inhibitor and quinone outside inhibitor fungicides significantly increased yield response. Conclusion Foliar fungicide applications can increase corn grain yield. To ensure the likelihood of a positive ROI, farmers should focus on applications at VT and use fungicides that include a mix of demethylation inhibitor and quinone outside inhibitor active ingredients.

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Genetic variation for response to mixed triazole and strobilurin application in diverse maize

Woore

Holland

2020

Agrosystems Geosci & Env

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Strobilurin and triazole classes of fungicides have been reported to have growth‐regulating effects on crops in the absence of their target pathogens and to increase maize yield. Because the response of maize (Zea mays L.) plants to a commercially marketed mixture of strobilurin and triazole may not be uniform across genotypes, it may be possible to breed selectively for higher yield responses to application of this chemical treatment. To test this hypothesis, diverse samples of maize inbred lines and hybrids were evaluated for response to a combined mixture of a treatment of strobilurin and triazole. Main effects of treatment and genotype and treatment × genotype interactions were measured on agronomic traits including grain yield and several yield components, lodging, and delayed leaf senescence. Hybrid and inbred genotype main effect variation was significant for all measured traits. Favorable main effects of strobilurin and triazole treatment were observed only for leaf senescence and foliar disease, and genotype × treatment interactions were not significant for yield or yield components. Yield was significantly increased only in two inbred varieties and did not correlate with any known pedigree or genetic relationships. These results suggest that breeding to enhance the response to strobilurin and triazole treatment is not likely to be effective in maize.

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Plot size can influence yield benefits from fungicides on corn

Cited by 23 publications

References 24 publications

Evaluating a preventive biological control agent applied on grapevines against Botrytis cinerea and its influence on winemaking

Evaluating a preventive biological control agent applied on grapevines against Botrytis cinerea and its influence on winemaking

Meta-analysis of yield response of foliar fungicide-treated hybrid corn in the United States and Ontario, Canada

Genetic variation for response to mixed triazole and strobilurin application in diverse maize

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