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Carrot weed management programs without linuron herbicide

Published online by Cambridge University Press:  21 March 2019

Jed B. Colquhoun Open the ORCID record for Jed B. Colquhoun [Opens in a new window] ,
Richard A. Rittmeyer  and
Daniel J. Heider
Jed B. Colquhoun*
Affiliation:
Professor, Department of Horticulture, University of Wisconsin–Madison, Madison, WI, USA
Richard A. Rittmeyer
Affiliation:
Senior Research Specialist, Department of Horticulture, University of Wisconsin–Madison, Madison, WI, USA
Daniel J. Heider
Affiliation:
Distinguished Outreach Specialist, Department of Horticulture, University of Wisconsin–Madison, Madison, WI, USA
*
Author for correspondence: Jed B. Colquhoun, Email: colquhoun@wisc.edu
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Abstract

Linuron herbicide has been a mainstay of carrot weed management for years, but uncertainty around regulatory registration review and an increased prevalence of herbicide-resistant weeds have spurred interest in identifying alternatives that can be readily adopted in production. With this context in mind, herbicide programs were evaluated on a coarse-textured, low organic matter soil in 2015 and 2016. Season-long weed control without compromising yield was possible with weed management programs that included prometryn POST instead of linuron. With that said, a PRE herbicide such as pendimethalin was critical to establish an early-season competitive advantage for carrot plants over weeds, and careful attention should be paid to the prometryn rate, as selectivity is marginal. Carrot is often interseeded with a grain nurse crop to mitigate risk of wind erosion. Nurse crop injury was minimal where S-metolachlor, pendimethalin, or prometryn was applied at rates labeled for PRE use in carrot, with the exception of where prometryn was applied at rates above 1.1 kg ai ha−1.

Keywords

Steve Fennimore, University of California, DavisLinuronpendimethalinprometrynS-metolachlorcarrot, Daucus carota LIntegrated weed managementspecialty cropsvegetable crops
Type
Research Article
Information
Weed Technology , Volume 33 , Issue 3 , June 2019 , pp. 490 - 494
Copyright
© Weed Science Society of America, 2019 

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References

Bell, CE, Boutwell, BE, Ogbuchiekwe, EJ, McGiffen, ME (2000) Weed control in carrots: the efficacy and economic value of linuron. HortScience 35:1089–1091 CrossRefGoogle Scholar
Bellinder, RR, Kirkwyland, JJ, Wallace, RW (1997) Carrot (Daucus carota) and weed response to linuron and metribuzin applied at different crop stages. Weed Technol 11:235–240 CrossRefGoogle Scholar
Coelho, M, Bianco, S, Carvalho, LB (2009) Weed interference on carrot crop (Daucus carota). Planta Daninha 27:913–920 CrossRefGoogle Scholar
Colquhoun, J, Gevens, A, Groves, R, Heider, D, Jensen, B, Nice, G, Ruark, M (2018) Commercial Vegetable Production in Wisconsin. UW-Extension Bulletin, A3422. http://learningstore.uwex.edu/assets/pdfs/A3422.PDF. Accessed: September 19, 2018Google Scholar
Colquhoun, J, Rittmeyer, R, Heider, D (2017) Tolerance and suppression of weeds varies among carrot varieties. Weed Technol 31:897–902 CrossRefGoogle Scholar
European Commission (2018) European Union Pesticides Database. http://ec.europa.eu/food/plant/pesticides/eu-pesticides-database/public/?event=activesubstance.selection&language=EN. Accessed: December 12, 2018Google Scholar
Freitas, FC, Almeida, MEL, Negreiros, MZ, Honorato, ARF, Mesquita, HC, Silva, SVOF (2009) Periods of weed interference in carrot in function of spacing between rows. Planta Daninha 27:473–480 CrossRefGoogle Scholar
Heap, I (2018) The International Survey of Herbicide Resistant Weeds. weedscience.org. Accessed: September 19, 2018Google Scholar
Henne, RC, Guest, RT (1973) Evaluation of six herbicides on carrots. Proc Northeast Weed Sci Soc 27:218–220 Google Scholar
Henne, RC, Poulson, TL (1980) Integrated weed control program for carrots and tomatoes. Proc Northeast Weed Sci Soc 34:161–166 Google Scholar
[USEPA] U.S. Environmental Protection Agency (2018) Registration Review Schedules. https://www.epa.gov/pesticide-reevaluation/registration-review-schedules. Accessed: December 12, 2018Google Scholar
Van Heemst, HD (1985) The influence of weed competition on crop yield. Agric Sys 18:81–93 CrossRefGoogle Scholar