Skip to main content Accessibility help
×
Home
Hostname: page-component-54cdcc668b-rfpnn Total loading time: 0.249 Render date: 2021-03-09T08:25:48.860Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }

Sweetpotato Tolerance and Palmer Amaranth Control with Metribuzin and Oryzalin

Published online by Cambridge University Press:  14 September 2017

Stephen L. Meyers
Affiliation:
Graduate Research Assistant, Assistant Professor, and Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695.
Katherine M. Jennings
Affiliation:
Graduate Research Assistant, Assistant Professor, and Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695.
David W. Monks
Affiliation:
Graduate Research Assistant, Assistant Professor, and Professor, Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695.
Corresponding

Abstract

Field studies were conducted in Clinton, NC in 2007 and 2009 to determine sweetpotato crop response and Palmer amaranth control with metribuzin and oryzalin. Treatments consisted of 140 and 202 g ai ha−1 metribuzin applied immediately after transplanting [0 wk after transplanting (WAP)] or 2 WAP, 560 and 1121 g ha−1 oryzalin 0 WAP, and tank mixes of metribuzin (140 or 202 g ha−1) and oryzalin (560 or 1,121 g ha−1) 0 WAP. At 2 WAP, metribuzin alone applied 0 WAP resulted in greater crop injury (33%) than oryzalin alone (1%), and the tank mix of metribuzin plus oryzalin resulted in greater crop injury (49%) than either herbicide applied alone. Greater crop injury occurred when metribuzin was applied at 202 g ha−1 (54%) than 140 g ha−1 (34%). Levels of injury were similar at 4 WAP (34, 8, and 52% for metribuzin, oryzalin, and the tank mix, respectively). At 4 WAP, injury from metribuzin was greater when it was applied 0 WAP (34%) compared to 2 WAP (18%). By 10 WAP, injury from metribuzin applied at 2 WAP was only 4%. At 4 WAP, Palmer amaranth control was excellent for all treatments and ≥98%. At 10 WAP, control among treatments ranged from 77% to 85%. Palmer amaranth control provided by metribuzin was similar for applications made 0 WAP (78%) and 2 WAP (77%). Oryzalin alone provided similar control (85%) to metribuzin alone 0 WAP, but greater control than the tank mix (77%). Neither metribuzin nor oryzalin rate differed in weed control provided at 10 WAP. Oryzalin 0 WAP and metribuzin 2 WAP provided no. 1 sweetpotato yields equivalent to the hand-weeded check. No. 1 yields of all other treatments were less than the hand-weeded check but greater than the weedy check.

Type
Weed Management-Other Crops/Areas
Copyright
© Weed Science Society of America, 2017 

Access options

Get access to the full version of this content by using one of the access options below.

Footnotes

a

Current address of first author: Assistant Professor, North Missisisppi Research and Extension Center–Pontotoc Ridge–Flatwoods Branch Experiment Station, Mississippi State University, Pontotoc, MS 38863.

Associate Editor for this paper: Peter J. Dittmar, University of Florida.

References

Anonymous. (2014) Surflan AS herbicide product label. King of Prussia, PA: United Phosphorus, Inc. 8 pGoogle Scholar
Barkley, SL, Chaudhari, S, Jennings, KM, Schultheis, JR, Meyers, SL, Monks, DW (2016) Fomesafen programs for Palmer amaranth (Amaranthus palmeri) control in sweetpotato. Weed Technol 30:506515 CrossRefGoogle Scholar
Frans, RE, Talbert, R, Marx, D, Crowley, H (1986) Experimental design and techniques for measuring and analyzing plant responses to weed control practices. Pages 2946 in Camper ND ed. Research Methods in Weed Science. Champaign, IL: South Weed Sci Soc Google Scholar
Freitas, SP, Sediyama, T, Sediyama, MAN, Ferreira, FA, Sediyama, CS (1998) Efeitos de dejeto de suinos na incidencia de plantas daninhas e na eficiencia do herbicida metribuzin na cutlura da batata-doce. Planta Daninha 16:8596 CrossRefGoogle Scholar
Glaze, NC, Hall, MR (1990) Cultivation and herbicides for weed control in sweet potato (Ipomoea batatas). Weed Technol 4:518523 Google Scholar
Gossett, BJ, Murdock, EC, Toler, JE (1992) Resistance of Palmer amaranth (Amaranthus palmeri) to the dinitroaniline herbicides. Weed Technol 6:587591 Google Scholar
Harrison, HF Jr, Jones, A, Dukes, PD (1985) Differential response of six sweet potato (Ipomoea batatas) cultivars to metribuzin. Weed Sci 33:730733 Google Scholar
Meyers, SL, Jennings, KM, Schultheis, JR, Monks, DW (2010) Evaluation of flumioxazin and S-metolachlor rate and timing for Palmer amaranth (Amaranthus palmeri) control in sweetpotato. Weed Technol 24:495503 CrossRefGoogle Scholar
Meyers, SL, Jennings, KM, Monks, DW (2012) Response of sweetpotato cultivars to S-metolachlor rate and application time. Weed Technol 26:474479 CrossRefGoogle Scholar
Meyers, SL, Jennings, KM, Monks, DW (2013a) Herbicide-based weed management programs for Palmer amaranth (Amaranthus palmeri) in sweetpotato. Weed Technol 27:331340 CrossRefGoogle Scholar
Meyers, SL, Jennings, KM, Monks, DW, Miller, DK, Shankle, MW (2013b) Rate and application timing effects on tolerance of ‘Covington’ sweetpotato to S-metolachlor. Weed Technol 27:729734 CrossRefGoogle Scholar
Monks, DW, Shankle, MW, Jennings, KM, Meyers, SL (2013) Herbicide injury. Pages 118119 in Clark CA, Ferrin DM, Smith TP & Holmes GJ eds. Compendium of Sweetpotato Diseases, Pests, and Disorders 2nd edn. St. Paul, MN: The American Phytopathological Society Google Scholar
Motsenbocker, CE, Monaco, TJ (1993) Differential tolerance of sweet potato (Ipomoea batatas) clones to metribuzin. Weed Technol 7:349354 Google Scholar
[NCDA and CS] North Carolina Department of Agriculture & Consumer Services. (2016) North Carolina Agricultural Statistics 2015. Raleigh, NC: NC Department of Agriculture Google Scholar
Seem, JE, Creamer, NG, Monks, DW (2003) Critical weed-free period for ‘Beauregard’ sweetpotato (Ipomoea batatas). Weed Technol 17:686695 CrossRefGoogle Scholar
Shaner, DL ed. (2014) Herbicide Handbook. 10th edn. Lawrence, KS: Weed Science Society of America. Pp 308–310:327328 Google Scholar
[USDA] U.S. Department of Agriculture. (2005) United States Standards for Grades of Sweet Potatoes. Washington, DC: U.S. Department of Agriculture Google Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 11
Total number of PDF views: 45 *
View data table for this chart

* Views captured on Cambridge Core between 14th September 2017 - 9th March 2021. This data will be updated every 24 hours.

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Sweetpotato Tolerance and Palmer Amaranth Control with Metribuzin and Oryzalin
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Sweetpotato Tolerance and Palmer Amaranth Control with Metribuzin and Oryzalin
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Sweetpotato Tolerance and Palmer Amaranth Control with Metribuzin and Oryzalin
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *