Response of soybean cyst nematodes and soybeans (<i>Glycine max</i>) to herbicides

Levene, Brian C.; Owen, Micheal D. K.; Tylka, Gregory L.

doi:10.1017/s0043174500090512

Cited by 24 publications

(28 citation statements)

References 26 publications

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“…At the R4 application timing, SBS was more severe, but SDS was less severe when KCl was applied alone or fungicides were combined with foliar applications of KCl compared to the no KCl, no fungicide control. This may have been confounded by temporary foliar necrosis caused by the foliar KCl treatment, or it may reflect a similar response of the plants to protoporphyrinogen‐oxidase inhibiting herbicides, which reduced the incidence or severity of diseases in soybean in other studies (Kömives and Casida, 1983; Levene et al, 1998; Dann et al, 1999; Nelson et al, 2002a, 2002b). In general, preplant applied KCl did not significantly reduce the severity of SBS, FLS, or SDS compared to the control plots with no KCl at Qulin.…”

Section: Resultsmentioning

confidence: 99%

Soybean Response to Preplant and Foliar‐Applied Potassium Chloride with Strobilurin Fungicides

et al. 2010

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Potassium chloride (KCl) preplant or foliar applied with fungicides to soybean [Glycine max (L.) Merr.] may allow farmers to increase yields when soil K availability is reduced and/or when Septoria brown spot (SBS) (Septoria glycines), frogeye leaf spot (FLS) (Cercospora sojina), or sudden death syndrome (SDS) (Fusarium solani (Mart.) Sacc. f. sp. glycines) are present. Interactions between fertilizer and fungicide management programs have not been examined in the central United States. Our objective was to evaluate the eff ect of preplant-and foliar-applied KCl alone or combined with pyraclostrobin, azoxystrobin, or azoxystrobin plus lambda-cyhalothrin on soybean response and severity of SBS, FLS, and SDS. Experiments were conducted in northeastern (Novelty) and southeastern (Qulin) Missouri in 2006 and 2007 on soils with low to medium K. Leaf K concentrations increased 1.4 to 6.1 g kg −1 following preplant KCl compared to nontreated or foliar KCl. Leaf Cl concentrations increased signifi cantly with preplant KCl at Qulin and foliar KCl at R4 at Qulin and Novelty. At Novelty, preplant KCl reduced the severity of SBS and FLS up to 6%, and increased yield 340 kg ha −1 , while foliar KCl increased yield 110 kg ha −1 . An R4 application of strobilurin fungicides increased yields 230 to 360 kg ha −1 at Novelty. At Qulin, soybean yield increased 390 kg ha −1 with preplant KCl, while there were variable eff ects of fungicides on the severity of SBS, FLS, or SDS, and no yield increase due to fungicides or foliar KCl. Foliar applications of KCl were no substitute for preplant KCl.

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Section: Resultsmentioning

confidence: 99%

Soybean Response to Preplant and Foliar‐Applied Potassium Chloride with Strobilurin Fungicides

et al. 2010

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“…We included fallow with different weed control treatments for the purpose of identifying any herbicide effect on SCN, which might confound the rotation crop effect when different herbicides were used in the different crops. Although the effect of herbicides on SCN population has been reported (Levene et al, 1998), no effect of herbicide on SCN population density was observed in this study except that the Pf02 was higher in the no‐weeding treatment than in treatments with either Buctril or Pursuit. Thus, the rotation crop effect on SCN was unlikely to be due to herbicide treatment.…”

Section: Discussionmentioning

confidence: 99%

Rotation Crop Evaluation for Management of the Soybean Cyst Nematode in Minnesota

et al. 2006

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Crop rotation is an effective tactic for soybean cyst nematode (SCN) management. In the North Central region of the USA, corn is almost exclusively used as a nonhost rotation crop with soybean. This study was conducted to determine the effectiveness of crops common to or having potential use in the North Central region as rotation crops for managing SCN. Sixteen potential rotation crops and SCN-resistant and susceptible soybeans were grown along with six fallow controls in three commercial field sites near Waseca, Lamberton, and Morris, MN, in 2001, and SCN-susceptible soybean was grown on all plots in 2002. Nematode populations at planting, midseason, and harvest were measured both years; soybean yield was measured in 2002. There was large variability in SCN populations and soybean yields at the three sites. Nevertheless, significant treatment effects were detected at all sites. While all of the rotation crops lowered SCN populations compared with SCN-susceptible soybean, there were only subtle differences among the individual rotation crops and among different groups of the crops. Leguminous nonhosts or poor hosts were best in reducing SCN population density. Corn, the most common rotation crop in Minnesota, was among the least effective in reducing nematode populations. There was an undetectable yield benefit from SCN management, although differences in yield were observed among the rotation crop treatments-probably due to agronomic factors. The data suggest that a single year of rotation of soybean with any of these crops before planting a susceptible soybean may not be sufficient in managing SCN.

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“…White mold is common in narrow‐row soybean culture (Grau and Radkey, 1984) and in crop rotations with alternate hosts (Schwartz et al, 1978). Research suggests that lactofen suppresses white mold in soybean (Dann et al, 1999) and affects soybean cyst nematode ( Heterodera glycines Ichinohe) reproduction (Levene et al, 1998). Interactions among herbicide treatments, soybean canopy closure, and disease incidence may affect production practices and weed management strategies for soybean.…”

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confidence: 99%

“…Various studies have reported differential sensitivity between soybean cultivars to herbicides; however, sensitivity was not linked to additional herbicide resistance in the cultivar (Connelly et al, 1988; Dayan et al, 1997; Griffin and Habetz, 1989). Other research has evaluated the application of acifluorfen and bentazon [3‐(1‐methylethyl)‐(1 H )‐2,1,3‐benzothiadiazin‐4(3 H )‐one 2,2‐dioxide] at the V3 (Levene et al, 1998) and V6 (Browde et al, 1994) stage of development and the interaction with nematodes. However, published research evaluating soybean canopy influence as affected by herbicide treatment for weed control and white mold suppression is not available.…”

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confidence: 99%

Soybean Growth and Development as Affected by Glyphosate and Postemergence Herbicide Tank Mixtures

Nelson

Renner

2001

Agronomy Journal

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Field research was conducted to evaluate the effect of glyphosate [N‐(phosphonomethyl)glycine] and postemergence herbicide tank mixtures applied to soybean [Glycine max (L.) Merr.] at the V5 growth stage on growth, development, and grain yield of glyphosate‐resistant and nonresistant cultivars. Glyphosate at 840 g a.e. ha−1 did not affect vegetative growth, reproductive development, leaf area index (LAI), or grain yield of glyphosate‐resistant soybean compared with nontreated glyphosate‐resistant soybean. Soybean injury 21 d after treatment (DAT) was 14 to 18% when herbicide tank mixture treatments were applied. Soybean injury caused by postemergence herbicide tank mixtures resulted in delayed vegetative development when measured 7 DAT, delayed reproductive development at 20 and 80 DAT, reduced season‐long height of ‘Asgrow A1900’ and ‘Asgrow AG1901’, and reduced aboveground dry weight at 35 and 56 DAT compared with nontreated plants. Leaf area index was reduced by postemergence tank mixtures up to 52 DAT but was greater 70 and 80 DAT, depending on the cultivar. The ratio of red to far red light that reached the soil surface 28 DAT was dependent on cultivar and herbicide selection. Yield of soybean treated with herbicides other than glyphosate timed for weed control and disease suppression was reduced at least 200 and 130 kg ha−1 in 1997 and 1998, respectively, in the absence of weeds and disease.

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Response of soybean cyst nematodes and soybeans (Glycine max) to herbicides

Cited by 24 publications

References 26 publications

Soybean Response to Preplant and Foliar‐Applied Potassium Chloride with Strobilurin Fungicides

Soybean Response to Preplant and Foliar‐Applied Potassium Chloride with Strobilurin Fungicides

Rotation Crop Evaluation for Management of the Soybean Cyst Nematode in Minnesota

Soybean Growth and Development as Affected by Glyphosate and Postemergence Herbicide Tank Mixtures

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