Impact of fluopyram fungicide and preemergence herbicides on soybean injury, population, sudden death syndrome, and yield

Kandel, Yuba R.; Mueller, Daren S.; Legleiter, Travis R.; Johnson, William G.; Young, Bryan G.; Wise, Kiersten

doi:10.1016/j.cropro.2017.12.009

Cited by 22 publications

(12 citation statements)

References 27 publications

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“…After the period of 21 DTA the effect of the herbicides in associations don't present visual symptoms of phytotoxicity ( Table 2). Results that corroborate with studies of Kandel et al (2018), the herbicides flumioxazin, sulfentrazone and S-metalachlor even associate to other herbicides, rarely the authors observed phytotoxicity in the stage V4 (4 developed leafs). At 7 DTA the herbicides that had the best % of control of U. plantaginea were the associations with sulfentrazone, herbicide this that is indicated mainly to the control of monocotyledons (Table 3).…”

Section: Resultssupporting

confidence: 81%

“…The treatments that maintained level of control of weed plants over 80% had satisfactory productivity (Tables 3 and 4), even when in 7 and 14 DTA present phytotoxicity the culture of the soybean (Table 2). Some herbicides as flumioxazin and sulfentrazone present low phytotoxicity the culture and lows don't significands in the soybean grains productivity (Kandel et al, 2018) (Figure 2). To species of weed plants that present resistance or tolerance to the herbicide glyphosate the utilization of herbicides pre-emergents becomes an alterative, reducing the competition of weed plants in the beginning of the season of increasing plants of soybean (Arregui et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

“…The difficulty in find herbicides that present residual and don't cause phytotoxicity to the culture, has been motive of many studies. The herbicide flumioxazin, in research, was observed that presents phytotoxicity in Young plants, however being characterized as few injurious in the productivity of the soybean culture (Grichas et al, 2009;Kandel et al, 2018). The herbicide glyphosate combined with diuron + sulfentrazone and flumioxazin and amônio-glufosinato + diurom + sulfentrazone present low efficiency in the controlo f some weed plants when compared with, association of glyphosate + sulfentrazone in which presents good control in U. plantaginea and Digitaria ciliares, however in dicotyledoneous plants don't present satisfactory control, already diclosulam presents satisfactory control in dicotyledoneous, when applied in pre-emergency not influiyng in the soybean grains productivity (Nonemacher et al, 2017;Braz et al, 2017).…”

Section: Introdutionmentioning

confidence: 99%

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Association of Herbicides for Management of Weed Plants in Pre-emergence of Soybean Culture

Santin¹,

Giacomin²,

Galon³

et al. 2019

JAS

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One of the big challenges to the soybean cultivation is the control of weed plants, because of the competitive potential that they presente and the resistance index in relation to the herbicides. In front of this, the work had as objective to evaluate the mix of herbicides in tanks to initial control of weed plants in the soybean culture. The experiment was installed in field in sistem of no-tillage in an área that presented the cultute of the wheat as precedente. The design used was that one of randomized blocks, with four repetitions. The herbicide’s treatments used in the test were: glyphosate, glyphosate + (diuron+sulfentrazone), glyphosate + diclosulam, glyphosate + (imazethapyr + flumioxazin), glyphosate + flumioxazin, glyphosate + 2,4-D, glyphosate + S-metolachlor, amônio-glufosinate + (diuron + sulfentrazone). The variable used was phytotoxicity in the culture, weed plants’ control Urochloa plantaginea and Raphanus sp., thousand grains weight and productivity of the soybean. The data were submitted to analysis of variance by the F test and the compared averages by the Scott-Knott test, in 5% of error probability. The phytotoxicity caused by the herbicides in the culture is not significative in the point of decrease the grains yield. The herbicides that presented better control of U. plantaginea were the associations of glyphosate with diuron + sulfetrazone, imazethapyr + flumioxazin and s-metolaclhor. Already in the control of Raphanus sp., the association of diclosulam and imazethapyr + flumioxazin with glyphosate presents results next of 100% of control. The variable thousand grains weight it was not affected by the association of the herbicides. In relation to the soybean grains productivity the herbicides (glyphosate + diclosulam and glyphosate + (imazethapyr + flumioxazin)) that provide low phytotoxicity and high control of the weed plants had their productivity compared to the weeded control.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

Section: Introdutionmentioning

confidence: 99%

See 1 more Smart Citation

Association of Herbicides for Management of Weed Plants in Pre-emergence of Soybean Culture

Santin¹,

Giacomin²,

Galon³

et al. 2019

JAS

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“…In study Yuba R. Kandela, Daren S. Mueller and etc. [63] says that preemergence herbicides and seed treatment fluopyram each has led to increased phytotoxicity in the VC-V1 growth stage in soybean compared to the untreated control. Physiological studies after fungicide application on several species reported modifications of both photosynthetic activity and chlorophyll a fluorescence [24].…”

Section: The Main Classes Of Fungicide and Plant Physiological Responsesmentioning

confidence: 99%

Modern Fungicides: Mechanisms of Action, Fungal Resistance and Phytotoxic Effects

Байбакова

Nefedjeva

Suska‐Malawska

et al. 2019

ARRB

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The establishment of safe and effective methods for controlling fungal diseases is an urgent issue in agriculture and forestry. Fungicide research has provided a wide range of products with new modes of action. Extensive use of these compounds in agriculture enhances public anxiety due to the harmful potential for the environment and human health. Moreover, the phytotoxic effects of some fungicides are already recognized but still little is known about their influence on the photosynthetic apparatus and plant physiology. This review provides an understanding of the mechanisms of action of fungicides, mechanisms of fungicide resistance development, and the phenomenon of phytotoxicity.

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“…At the 28 DAE were not observed visual symptoms of toxicity in the culture of soybean (Table 2), showing this way, that the associations of the herbicides are quickly metabolized by the plants. Studies conducted by Kandel et al (2018) also show that associations using sulfentrazone, saflufenacil, flumioxazin do not present symptoms of phytotoxicity until the stadium V4 of the culture of the soybean.…”

Section: Resultsmentioning

confidence: 94%

Weed management in soybean using burndown herbicides associated to pre-emergent herbicides

Santin¹,

Peruzzo²,

Galon³

et al. 2019

Commun. Plant Sci.

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The soybean crop has been playing a very important role in the agribusiness worldwide, including in Brazil. Among the pests that cause major problems to the crop are the weeds, because they are responsible by the reduction of the productivity and of the grain quality. On the face of it, this work aimed to evaluate the application of burndown herbicides associated to pre-emerging herbicides to the management of the soybean weeds. The experiment was carried out in the field, in area with no soil cover with fallow during the winter, in the randomized block design, with four replicates. The treatments used were: diuron + sulfentrazone (490 + 245), [glyphosate + (diuron + sulfentrazone)-1,440 + (420 + 210)], [glyphosate + (diuron + sulfentrazone)-1,440 + (490 + 245)], glyphosate + 2,4-D (1,440 + 806), glyphosate + diclosulam (1,440 + 25.2), [glyphosate + (imazethapyr + flumioxazin)-1,440 + (100 + 50)], glyphosate + saflufenacil (1,440 + 35), [ammonium-glufosinate + (diuron + sulfentrazone)-400 + 490 + 245 g ha-1 de i.a], and two herbicide-free controls, weedy and weed-free. At the 7, 14, 21 and 28 days after the emergency of the crop (DAE) the variables were evaluated, herbicide phytotoxicity on soybean and the weeds control, Digitaria ciliaris and Urochloa plantaginea. In the soybean harvest, the number of pods per plant was determined, the number of grains per pods, the mass of a thousand grains (g) and the grain productivity (kg ha-1). The phytotoxicity caused by herbicides to the soybean it was not over to 8% in all the evaluations realized. The control of the weeds, D. ciliaris and U. plantaginea were over to 90%, highlighting the effect of the pre-emerging herbicides in the maintaining of the control until the evaluation of the 28 DAE. In general, all the treatments involving the herbicides did not cause changes in the components of soybean crop yield, being statistically equal the weed-free control higher than the weedy control. The soybean presented an increase of 859.48% in grain yield when Digitaria ciliaris and of the Urochloa plantaginea was controlled. Highlighted Conclusions 1. The control of Digitaria ciliaris and Urochloa plantaginea is more efficient with the use of pre-emerging herbicides, mainly diuron + sulfentrazone and imazethapyr + flumioxazin. 2. The toxicity of herbicides to the soybean 'NA 5909' is low, with no visual intoxication symptoms from 28 days after emergency, and do not reduce the crop grain yield. 3. Digitaria ciliaris and Urochloa plantaginea can reduce by up to 88% the soybean grain yield if not controlled. 4. The soybean grain productivity can be increased by 859% when Digitaria ciliaris and Urochloa plantaginea are controlled.

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Impact of fluopyram fungicide and preemergence herbicides on soybean injury, population, sudden death syndrome, and yield

Cited by 22 publications

References 27 publications

Association of Herbicides for Management of Weed Plants in Pre-emergence of Soybean Culture

Association of Herbicides for Management of Weed Plants in Pre-emergence of Soybean Culture

Modern Fungicides: Mechanisms of Action, Fungal Resistance and Phytotoxic Effects

Weed management in soybean using burndown herbicides associated to pre-emergent herbicides

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