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Tolerance of Direct-Seeded Green Onions to Herbicides Applied Before or After Crop Emergence

Published online by Cambridge University Press:  20 January 2017

Jason K. Norsworthy ,
John P. Smith  and
Charles Meister
Jason K. Norsworthy*
Affiliation:
Department of Entomology, Soils, and Plant Sciences, Clemson University, 277 Poole Agricultural Center, Clemson, SC 29634
John P. Smith
Affiliation:
Department of Entomology, Soils, and Plant Sciences, Clemson University, Edisto Research and Education Center, 64 Research Rd., Blackville, SC 29817
Charles Meister
Affiliation:
University of Florida, P.O. Box 110720, Gainesville, FL 32611-0720
*
Corresponding author's E-mail: [email protected]
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Abstract

Field experiments were conducted in 2004 and 2005 to determine the tolerance of direct-seeded green onion to selected herbicides applied before or after green onion emergence. Preemergence herbicides included S-metolachlor, pendimethalin, dimethenamid, quinclorac, pronamide, ethofumesate, and DCPA, a registered standard. Herbicide applied to two- to three-leaf green onion included glyphosate, trifloxysulfuron, flumioxazin, phenmedipham, ethalfluralin, pendimethalin, S-metolachlor, and oxyfluorfen. Plots were cultivated and hand weeded to minimize negative effects of weed interference on the crop. All herbicides applied at seeding, excluding DCPA, caused excessive injury (>25%) to green onion in at least 1 of 2 years. Oxyfluorfen, ethalfluralin, or S-metolachlor applied after crop emergence caused less than 10% injury in both years to green onion. Green onion yields following treatment with oxyfluorfen, ethalfluralin, or S-metolachlor were equivalent to the nontreated control. All other herbicides applied after crop emergence resulted in height, density, or yield reductions relative to a nontreated control in at least 1 of 2 years.

Keywords

DCPAdimethenamidethalfluralinethofumesateflumioxazinglyphosateoxyfluorfenpendimethalinphenmediphampronamidequincloracS-metolachlortrifloxysulfurongreen onion, Allium cepa L. ‘White Spear 85’Crop injuryherbicide tolerance
Type
Research
Information
Weed Technology , Volume 21 , Issue 1 , March 2007 , pp. 119 - 123
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anonymous, , 2005a. Goal 2XL label. Dow AgroSciences. http://www.cdms.net/ldat/ld5S1024.pdf. Accessed: January 2, 2006.Google Scholar
Anonymous, , 2005b. Green onion enterprise budgets. http://cherokee.agecon.clemson.edu/onion6.pdf Accessed: December 31, 2005.Google Scholar
Anonymous, , 2005c. Poast label. BASF Corporation. http://www.cdms.net/ldat/ld5KM000.pdf. Accessed: January 2, 2006.Google Scholar
Bond, W. and Burston, S. 1996. Timing the removal of weeds from drilled salad onions to prevent crop losses. Crop Prot. 15:205–211.CrossRefGoogle Scholar
Boydston, R. A. and Seymour, M. D. 2002. Volunteer potato (Solanum tuberosum) control with herbicides and cultivation in onion (Allium cepa). Weed Technol. 16:620–626.CrossRefGoogle Scholar
Ghosheh, H. Z. 2004. Single herbicide treatments for control of broadleaved weeds in onion (Allium cepa). Crop Prot. 23:539–542.CrossRefGoogle Scholar
Greenland, R. G. 2000. Optimum height at which to kill barley used as a living mulch in onions. Hortscience 35:853–855.CrossRefGoogle Scholar
Haar, M. J., Fennimore, S. A., McGiffen, M. E., Lanini, W. T., and Bell, C. E. 2002. Evaluation of preemergence herbicides in vegetable crops. Horttechnology 12:95–99.CrossRefGoogle Scholar
Hatzinikolaou, A. S., Eleftherohorinos, I. G., and Vasilkoglou, I. B. 2004. Influence of formulation on the activity and persistence of pendimethalin. Weed Technol. 18:397–403.CrossRefGoogle Scholar
Keeling, J. W., Bender, D. A., and Abernathy, J. R. 1990. Yellow nutsedge (Cyperus esculentus) management in transplanted onions (Allium cepa). Weed Technol. 4:68–70.CrossRefGoogle Scholar
D.C. Sanders, eds. 2005. Vegetable Crop Handbook for the Southeastern United States 2006. Lenexa, KS Vance. 222–223.Google Scholar
Stall, W. M. and Hensel, D. R. 1994. Onion herbicide evaluations in North Florida. Proc. Fla. State Hort. Soc. 107:153–155.Google Scholar
W.K. Vencill, eds. 2002. Herbicide Handbook. 8th ed. Lawrence, KS Weed Science Society of America. 299–300.340–342.Google Scholar
Westra, P., Pearson, C. H., and Ristau, R. 1990. Control of venice mallow (Hibiscus trionum) in corn (Zea mays) and onions (Allium cepa). Weed Technol. 4:500–504.CrossRefGoogle Scholar