Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-28T00:09:04.314Z Has data issue: false hasContentIssue false

Selectivity and Efficacy of Clopyralid on Strawberry (Fragaria X ananassa)

Published online by Cambridge University Press:  20 January 2017

Rodrigo A. Figueroa*
Affiliation:
School of Agriculture and Forestry, Pontificia Universidad Católica de Chile; 7820436 Macul, Chile
Douglas J. Doohan
Affiliation:
Department of Horticulture and Crop Science, The Ohio State University, Wooster, OH 44691
*
Corresponding author's E-mail: rfe@uc.cl

Abstract

Field experiments were conducted in 2001 through 2003 in Wooster, OH, to determine strawberry (Fragaria X ananassa) plant response to clopyralid applied after plant renovation in established plantings. Clopyralid applied at a rate of 200 g ae/ha or greater controlled at least 82% of common groundsel (Senecio vulgaris) 6 wk after treatment (WAT). Maximum total fruit yield (marketable plus unmarketable fruits) occurred at a clopyralid rate of 200 g/ha, and higher or lower rates resulted in reduced yield. Application of clopyralid at 400 g/ha tended to reduce the canopy of the strawberry crop, especially in comparison to rates lower that 200 g/ha. Overall, clopyralid applied POST at 200 g/ha did not reduce fruit yield when applied after strawberry renovation, and effectively controlled common groundsel plants that were entering the reproductive stage.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Anonymous. 2001. Stinger® specimen label. Dow AgroSciences Publication No. D02-043-012. Indianapolis, IN: Dow AgroSciences: Web page: http://www.cdms.net/ldat/ld02P027.pdf. Accessed: October 24, 2003.Google Scholar
Beuret, E. 1989. A new problem of herbicide resistance: Senecio vulgaris L. in carrot crops treated with linuron. Rev. Suisse Vitic. Arboric. Hortic. 21:349352.Google Scholar
Clay, D. V. and Andrews, L. 1984. The tolerance of strawberries to clopyralid: effect of crop age, herbicide dose and application date. Asp. Appl. Biol. 8:151158.Google Scholar
Doohan, D. J. 2003. New herbicides for weed management at strawberry renovation. Wooster, OH: Ohio Fruit ICM News: Web page: http://ipm.osu.edu/fruit/03icm27.pdf. Accessed: August 11, 2003.Google Scholar
Doohan, D. J. and Jensen, K. I. N. 1997. Fine tuning weed management. Proc. North Amer. Strawberries Growers Assn. 14:3136.Google Scholar
Figueroa, R., Doohan, D. J., and Cardina, J. 2002. Efficacy and crop tolerance of sulfentrazone on strawberries. Proc. North Central Weed Sci. Soc. 57:152.Google Scholar
Fuerst, E. P. 1984. Effects of inhibitors and diverters of photosynthetic electron transport on herbicide resistant and susceptible weed biotypes. Diss. Abstr. Intl. Biol. Sci. Eng. 45:10791080.Google Scholar
Jensen, K. I. N. 1986. Response of Kent and Veestar strawberries to 2,4-D, dicamba and clopyralid. in The Annual Report of the Atlantic Food and Horticulture Research Centre. Kentville, Nova Scotia: Agriculture and Agri-Food Canada Pp. 1920.Google Scholar
Lawson, H. M. and Wiseman, J. S. 1982. Tolerance of strawberry to new herbicides for control of perennial weeds. Proc. Br. Crop Prot. Conf. Weeds 1:285290.Google Scholar
Mallory-Smith, C. 1998. Bromoxynil-resistant common groundsel (Senecio vulgaris). Weed Technol. 12:322324.Google Scholar
McMurray, G. L., Monks, D. W., and Leidy, R. B. 1996. Clopyralid use in strawberries (Fragaria X ananassa Duch.) grown on plastic mulch. Weed Sci. 44:350354.Google Scholar
[OMAFRA] Ontario Ministry of Agriculture, Food and Rural Affairs. 1999. Guide to Weed Control. Toronto, Canada: Queen's Printer for Ontario: 277.Google Scholar
Pritts, M. P. and Kelly, M. J. 2001. Early season weed competition reduces yield of newly planted matted row strawberries. Hortic. Sci. 36:729731.Google Scholar
Radosevich, S. R. and Devilliers, O. T. 1976. Studies on the mechanism of s-triazine resistance in common groundsel. Weed Sci. 24:229232.CrossRefGoogle Scholar
Ryan, G. F. 1970. Resistance of common groundsel to simazine and atrazine. Weed Sci. 18:614616.Google Scholar
Vezina, L. and Bouchard, C. J. 1989. Competition with sheep's sorrel (Rumex acetosella L.) with cultivated strawberries. Nat. Can. 116:237243.Google Scholar