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Response of Transplanted Watermelon (Citrullus lanatus) to Ethalfluralin Applied PPI, PRE, and POST

Published online by Cambridge University Press:  12 June 2017

Wayne E. Mitchem
Affiliation:
Department of Horticultural Science, North Carolina Stale University, Raleigh, NC 27695-7609
David W. Monks
Affiliation:
Department of Horticultural Science, North Carolina Stale University, Raleigh, NC 27695-7609
Robert J. Mills
Affiliation:
Department of Horticultural Science, North Carolina Stale University, Raleigh, NC 27695-7609

Abstract

Field experiments conducted in 1992 and 1993 evaluated transplanted watermelon tolerance to ethalfluralin applied PPI, PRE (before transplanting), and POST (immediately after transplanting) at 1.2 or 2.4 kg ai/ha. Other treatments for comparison included the registered herbicides ethalfluralin POST-directed spray (PDS), ethalfluralin PDS followed by (fb) naptalam POST, bensulide plus naptalam PPI, and a nontreated check. All treatments controlled common lambsquarters and goosegrass 83 to 100% 2 and 6 weeks after treatment (WAT). Watermelon was injured 30 to 77% in 1992 and 14 to 83% in 1993 by ethalfluralin PPI or PRE at 1.2 or 2.4 kg/ha. Ethalfluralin POST was not injurious to watermelon. In 1992, watermelon treated with ethalfluralin POST at 1.2 and 2.4 kg/ha yielded 52 to 62% more fruit than watermelon from the nontreated check. In 1993, yield of transplanted watermelon treated with ethalfluralin POST was similar to that in the nontreated check.

Type
Research
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

Literature Cited

Anonymous. 1995. North Carolina Agricultural Chemicals Manual. Raleigh, NC: College of Agricultural and Life Science, North Carolina State University.Google Scholar
Elmstrom, G. W., 1976. Herbicides for weed control in watermelon. Proc. South. Weed Sci. Soc. 29:232235.Google Scholar
Gilreath, J. P., and Everett, P. H. 1983. Weed control in watermelon grown in South Florida. Proc. South. Weed Sci. Soc. 36:159163.Google Scholar
Glaze, N. C., 1978. Weed control in cucumber and watermelon. Proc. South. Weed Sci. Soc. 28:174.Google Scholar
Locascio, S. J., Stall, W. M., Olson, S. M., and Vavrina, C. S. 1990. Watermelon production as influenced by herbicide combination and cultivation. Proc. Florida State Hortic. Soc. 102:332335.Google Scholar
Norton, J. D., Boyhan, G. E., Brown, J. E., and Hollingsworth, M. H. 1990. Newly labeled herbicide promising for watermelon and cantaloupe weed control. Highlights Agric. Res. Alabama Agric. Exp. Stn. Auburn Univ. 37:5.Google Scholar
Ogle, W. L., 1969. A further report on chemical weed control in cucumbers, cantaloupes and watermelon. Proc. South. Weed Sci. Soc. 22:216219.Google Scholar
Porter, W. C., and Johnson, C. E. 1986. Evaluating postemergence herbicides for grass control in watermelons. Louisiana Agric. Exp. Stn., Baton Rouge, LA 29:1011.Google Scholar
Salter, P. J., 1985. Crop establishment: recent research and trends in commercial practice. Scientia Horticulturae 36:3247.Google Scholar
SAS Institute. 1987. SAS/STAT Guide for Personal Computers. Version 6 ed. Cary, NC: SAS Institute.Google Scholar