Influence of Selected Fungicides on Efficacy of Clethodim and Sethoxydim

Lancaster, Sarah; Jordan, David L.; York, Alan C.; Burke, Ian C.; Corbin, F. T.; Sheldon, Yvonna S.; Wilcut, John W.; Monks, David W.

doi:10.1614/wt-04-172r

Cited by 21 publications

(35 citation statements)

References 17 publications

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“…However, there is considerable interest in compatibility of three or more pesticides, micronutrients, adjuvants, or plant growth regulators and their impact on pest control and crop management. With respect to weed control, efficacy of clethodim, sethoxydim, and 2,4-DB were compared when these herbicides were applied alone or with fungicides and insecticides (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2005b. Although results often supported previous findings with components from two groups of pesticides, no clear relationships were established with respect to combinations of three or more pesticides (Lancaster et al, 2005a(Lancaster et al, 2005b.…”

Section: Co-application Of Multiple Componentsmentioning

confidence: 76%

“…Fungicides are applied beginning approximately 45 days after peanut emergence and can be applied until a few weeks prior to digging and vine inversion. Efficacy of clethodim and sethoxydim can be reduced by co-application with coppercontaining fungicides or azoxystrobin, chlorothalonil, and pyraclostrobin (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2008. Fluazinam and tebuconazole did not reduce grass control compared with graminicides applied alone (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2005b.…”

Section: Herbicide -Fungicide Interactionsmentioning

confidence: 96%

“…Efficacy of clethodim and sethoxydim can be reduced by co-application with coppercontaining fungicides or azoxystrobin, chlorothalonil, and pyraclostrobin (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2008. Fluazinam and tebuconazole did not reduce grass control compared with graminicides applied alone (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2005b. Efficacy of herbicides that control dicotyledonous and sedge weeds is not generally affected by fungicides (Jordan et al, 2003a).…”

Section: Herbicide -Fungicide Interactionsmentioning

confidence: 99%

“…With respect to weed control, efficacy of clethodim, sethoxydim, and 2,4-DB were compared when these herbicides were applied alone or with fungicides and insecticides (Jordan et al, 2003a;Lancaster et al, 2005aLancaster et al, 2005b. Although results often supported previous findings with components from two groups of pesticides, no clear relationships were established with respect to combinations of three or more pesticides (Lancaster et al, 2005a(Lancaster et al, 2005b. More recently, research is being conducted to compare herbicide efficacy with mixtures containing various levels of fungicide, insecticide, micronutrient, or adjuvant (Chahal et al, 2009a(Chahal et al, 2009b.…”

Section: Co-application Of Multiple Componentsmentioning

confidence: 99%

See 3 more Smart Citations

Defining Interactions of Herbicides with Other Crop Protection Products Applied to Peanut

Jordan¹,

Chahal²,

Lancaster³

et al. 2011

Herbicides, Theory and Applications

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Section: Co-application Of Multiple Componentsmentioning

confidence: 76%

Section: Herbicide -Fungicide Interactionsmentioning

confidence: 96%

Section: Herbicide -Fungicide Interactionsmentioning

confidence: 99%

Section: Co-application Of Multiple Componentsmentioning

confidence: 99%

See 2 more Smart Citations

Defining Interactions of Herbicides with Other Crop Protection Products Applied to Peanut

Jordan¹,

Chahal²,

Lancaster³

et al. 2011

Herbicides, Theory and Applications

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“…This approach is preferable if peanut is not injured, pest control is not compromised, and physicochemical compatibility exits. Research has been conducted to define interactions between herbicides (Burke et al, 2004;Culpepper et al, 1998;Wehtje et al, 1992) and herbicides and fungicides (Jordan et al, 2003;Lancaster et al, 2005aLancaster et al, , 2005bLancaster et al, , 2008. Although interactions described in the literature have been defined for some herbicide-fungicide mixtures (Lancaster et al, 2008), reports on the interactions of herbicides and prothioconazole plus tebuconazole, tebuconazole plus trifloxystrobin, and flutriafol with clethodim or 2,4-DB have not been reported.…”

mentioning

confidence: 99%

Influence of Selected Fungicides on Efficacy of Clethodim and 2,4-DB

et al. 2012

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A range of fungicides and herbicides can be applied to control pests and optimize peanut yield. Experiments were conducted in North Carolina to define biological and physicochemical interactions when clethodim and 2,4-DB were applied alone or with selected fungicides. Pyraclostrobin consistently reduced large crabgrass [Digitaria sanguinalis (L.) Scop.] control by clethodim. Chlorothalonil and tebuconazole plus trifloxystrobin reduced large crabgrass control by clethodim in two of four experiments while prothioconazole plus tebuconazole and flutriafol did not affect control. Palmer amaranth [Amaranthus palmeri S. Wats] control by 2,4-DB was not affected by these fungicides. Although differences in spray solution pH were noted among mixtures of clethodim plus crop oil concentrate or 2,4-DB and fungicides, the range of pH was 4.40 to 4.92 and 6.72 to 7.20, respectively, across sampling times of 0, 6, 24, and 72 h after solution preparation. Permanent precipitates were formed when clethodim, crop oil concentrate, and chlorothalonil were co-applied at each sampling interval. Permanent precipitates were not observed when clethodim and crop oil concentrate were included with other fungicides or when 2,4-DB was mixed with fungicides. Significant positive correlations were noted for Palmer amaranth control by 2,4-DB and solution pH but not for clethodim and solution pH.

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Response of St. Augustinegrass cultivars to pinoxaden alone and in combination with select fungicides

Peppers

Harris

McElroy

2020

Crop Forage & Turfgrass Mgmt

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Pinoxaden is a herbicide inhibiting acetyl coenzyme A carboxylase recently introduced for use in turfgrass. Currently, pinoxaden is labeled for use in all bermudagrass [Cynodon dactylon (L.) Pers.] and zoysiagrass (Zoysia spp.) turfgrass areas except putting greens. However, pinoxaden is only labeled for use in St. Augustinegrass [Stenotaphrum secundatum (Walter) Kuntze] sod production because of injury concerns. Tank mixtures of two or more herbicides can reduce injury to turfgrass species. Injury reduction can also occur when fungicides are tank‐mixed with herbicides. Research was conducted between 2018 and 2019 to determine the effect that pinoxaden alone and tank mixtures of pinoxaden with one of two common fungicides, chlorothalonil and propiconazole, would have on four different cultivars of St. Augustinegrass: ‘Classic’, ‘Floratam’, ‘Palmetto’, and ‘Raleigh’. At the conclusion of the study, we determined that there is differential susceptibility to pinoxaden between cultivars of St. Augustinegrass and that both chlorothalonil and propiconazole have a safening effect on pinoxaden applications to St Augustinegrass, regardless of cultivar. The cultivars Classic and Raleigh were more susceptible to pinoxaden than Floratam and Palmetto. All four cultivars were less susceptible to pinoxaden when chlorothalonil and propiconazole were applied in combination with pinoxaden. These results suggest that pinoxaden can be applied in a tank mixture with either chlorothalonil or propiconazole to reduce pinoxaden injury to St. Augustinegrass. However, the effect that these tank mixtures may have on weed control is currently unknown.

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Influence of Selected Fungicides on Efficacy of Clethodim and Sethoxydim

Cited by 21 publications

References 17 publications

Defining Interactions of Herbicides with Other Crop Protection Products Applied to Peanut

Defining Interactions of Herbicides with Other Crop Protection Products Applied to Peanut

Influence of Selected Fungicides on Efficacy of Clethodim and 2,4-DB

Response of St. Augustinegrass cultivars to pinoxaden alone and in combination with select fungicides

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