Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-14T08:03:29.549Z Has data issue: false hasContentIssue false
  • English
  • Français

Direct-Seeded Broccoli (Brassica oleracea var. botrytis) Response to Oxyfluorfen and BAS 514 Applied Preemergence

Published online by Cambridge University Press:  12 June 2017

Kathleen A. Herbst  and
Jeffrey F. Derr
Kathleen A. Herbst
Affiliation:
Dep. Plant Pathol., Physiol., & Weed Sci., Va. Polytech. Inst. & State Univ., Blacksburg, VA 24061
Jeffrey F. Derr
Affiliation:
Dep. Plant Pathol., Physiol., & Weed Sci., Va. Polytech. Inst. & State Univ., Blacksburg, VA 24061
Get access Rights & Permissions [Opens in a new window]

Abstract

Oxyfluorfen applied preemergence at 0.14, 0.28, and 0.56 kg ai/ha reduced stand of direct-seeded broccoli 40 to 99%, while BAS 514 applied at the same rates did not reduce stand. Broccoli plants that survived oxyfluorfen exhibited 32 to 97% injury 6 to 9 weeks after treatment. BAS 514 at 0.14, 0.28, and 0.56 kg ai/ha caused 6 to 35% crop injury. Oxyfluorfen at 0.28 and 0.56 kg/ha reduced yield compared to the cultivated check at all locations. At one location, all rates of BAS 514 reduced broccoli yield compared to the cultivated check. The two low rates of oxyfluorfen and the two high rates of BAS 514 delayed crop maturity approximately 1 week at one location.

Keywords

BAS 514 (proposed common name quinclorac), 3,7-dichloro-8-quinolinecarboxylic acidoxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzenebroccoli, [Brassica oleracea (L.) var. botrytis]Cole cropsquinclorac
Type
Research
Information
Weed Technology , Volume 4 , Issue 2 , June 1990 , pp. 356 - 359
Copyright
Copyright © 1990 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

1. Bhowmik, P. C., and McGlew, E. N. 1986. The effect of oxyfluorfen as a pretransplant treatment on weed control and cabbage yield. J. Am. Soc. Hortic. Sci. 111:686–689.Google Scholar
2. Black, H. L., Smith, R. J. Jr., and Khodayari, K. 1986. Quinclorac for weed control in rice. Proc. South. Weed Sci. Soc. 40:67.Google Scholar
3. Crawford, S. H., Carroll, K. R., and Collins, R. K. 1986. Performance of preemergence applications of quinclorac in dry-seeded rice. Proc. South. Weed Sci. Soc. 40:66.Google Scholar
4. Derr, J. F. 1985. Response of direct-seeded broccoli to trifluralin, DCPA and napropamide. Va. J. Sci. 37(2):42.Google Scholar
5. Gilreath, J. P., and Gilreath, P.R. 1983. Weed control in seepage irrigated fall transplanted broccoli and cauliflower. Proc. Fla. State Hortic. Soc. 96:77–79.Google Scholar
6. Hopen, H. J. 1984. Broccoli and cabbage tolerance of several formulations of broadleaf active herbicides applied preemergence and postemergence. Proc. North Cent. Weed Control Conf. 39:146.Google Scholar
7. Kee, W.E., and Wilson, H. P. 1986. Oxyfluorfen on cole crops in Delaware and Virginia. Proc. Northeast. Weed Sci. Soc. 40:138.Google Scholar
8. Prostko, E., Ilnicki, R. D., and Enache, A. 1987. Weed control in transplanted cole crops. Proc. Northeast. Weed Sci. Soc. 41:138.Google Scholar
9. Senesac, A. F., Sieczka, J. B., and Creighton, J. F. 1986. Preemergence weed control in direct seeded crucifers on Long Island. Proc. Northeast. Weed Sci. Soc. 40:144.Google Scholar
10. Sieczka, J. B., Senesac, A. F., and Creighton, J. F. 1986. Weed control programs in transplanted crucifers. Proc. Northeast. Weed Sci. Soc. 40:139–143.Google Scholar
11. Street, J. E., Snipes, C. E., and Kurtz, M. E. 1986. Rice weed control with BAS-514. Proc. South. Weed Sci. Soc. 40:65.Google Scholar