Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-26T03:15:07.820Z Has data issue: false hasContentIssue false
  • English
  • Français

Sequential Applications of Preemergence and Postemergence Herbicides for Large Crabgrass (Digitaria sanguinalis) Control in Tall Fescue (Festuca arundinacea) Turf

Published online by Cambridge University Press:  12 June 2017

B. Jack Johnson
B. Jack Johnson*
Affiliation:
Crop and Soil Sciences, University of Georgia, Georgia Agricultural Experiment Station, Griffin, GA 30223-1797
Get access Rights & Permissions [Opens in a new window]

Abstract

Preemergence (PRE) and postemergence (POST) herbicides were sequentially applied to tall fescue over a 2-yr period to determine the lowest herbicide rates needed for acceptable large crabgrass control. Prodiamine was the only PRE herbicide that provided full-season large crabgrass control in tall fescue turf. The control was 85% in plots treated at one-third recommended rate (0.3 kg/ha) and 96% at the full rate (0.8 kg/ha). Sequential applications of oxadiazon at one-third recommended rate (1.1 kg/ha) in late February followed by fenoxaprop (0.2 kg/ha) in June controlled 85% large crabgrass in late August. Control was similar in mid-August when pendimethalin, dithiopyr, or oryzalin at one-third recommended rates was followed by fenoxaprop, but was not acceptable (≤ 74%) by late August. In most instances, large crabgrass control was higher when fenoxaprop followed the PRE herbicide application than with MSMA. Reduced herbicide rates may not provide full-season large crabgrass control in other areas with different soil and weather conditions. Tall fescue quality was not affected by prodiamine, dithiopyr, and oxadiazon. In 1996, pendimethalin at 3.3 kg/ha reduced turf quality 16% and oryzalin at 2.2 kg/ha reduced quality by 46%. In 1995, MSMA reduced the quality of tall fescue more (≤ 21%) than fenoxaprop (≤ 10%). When compared to the use of PRE and POST herbicides alone, sequential PRE plus POST herbicide programs did not affect turfgrass quality.

Keywords

Dithiopyr, S-S-dimethyl 2-(difluoromethyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3,5-pyridinedicarbothioatefenoxaprop, (±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy] propanoic acidMSMA, monosodium salt of methylarsonic acidoryzalin, 4-(dipropylamino)-3,5-dinitrobenzenesulfonamideoxadiazon, 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-onependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamineprodiamine, 2,4-dinitro-N 3N 3-dipropyl-6-(trifluoromethyl)-1,3-benzenediaminelarge crabgrass, Digitaria sanguinalis (L.) Scop. # DIGSAtall fescue, Festuca arundinacea Schreb. # FESARHerbicide programturfgrass toleranceweed control programDIGSAFESARPOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 11 , Issue 4 , December 1997 , pp. 693 - 697
Copyright
Copyright © 1997 by the 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

Bhowmik, P. C. and Bingham, S. W. 1990. Preemergence activity of dinitroaniline herbicides used for weed control in cool-season turfgrasses. Weed Technol. 4:387–393.CrossRefGoogle Scholar
Chism, W. J. and Bingham, S. W. 1991. Postemergence control of large crabgrass (Digitaria sanguinalis) with herbicides. Weed Sci. 39:62–66.CrossRefGoogle Scholar
Dernoeden, P. H. 1988. Fenoxaprop combined with preemergence herbicides for crabgrass and goosegrass control in turf. HortScience 23:154–157.CrossRefGoogle Scholar
Johnson, B. J. 1993a. Sequential herbicide treatments for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon) turf. Weed Technol. 7:674–680.CrossRefGoogle Scholar
Johnson, B. J. 1993b. Differential large crabgrass control with herbicides in tall fescue and common bermudagrass. HortScience 28:1015–1016.CrossRefGoogle Scholar
Johnson, B. J. 1994. Herbicide programs for large crabgrass and goosegrass control in Kentucky bluegrass turf. HortScience 29:876–879.CrossRefGoogle Scholar
Johnson, B. J. 1996a. Reduced rates of preemergence and postemergence herbicides for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon). Weed Sci. 44:585–590.CrossRefGoogle Scholar
Johnson, B. J. 1996b. Effect of reduced dithiopyr and prodiamine rates on large crabgrass (Digitaria sanguinalis) control in common bermudagrass (Cynodon dactylon) and tall fescue (Festuca arundinacea) turf. Weed Technol. 10:322–326.CrossRefGoogle Scholar
Johnson, B. J. and Carrow, R. N. 1995. Reduced preemergence herbicide rates for large crabgrass (Digitaria sanguinalis) control in six tall fescue (Festuca arundinacea) cultivars. Weed Technol. 9:716–723.CrossRefGoogle Scholar
Johnson, B. J. and Murphy, T. R. 1993. Summer weed control with herbicides in turfgrasses. Georgia Agric. Res. Bull. 411. 16 p.Google Scholar
Johnson, B. J. and Murphy, T. R. 1995. Efficacy of preemergence herbicides in turfgrasses. Georgia Agric. Res. Bull. 424. 23 p.Google Scholar
King, J. W. 1990. Fenoxaprop for crabgrass and goosegrass control in turfgrasses. Arkansas Farm Res. 39(2): 7.Google Scholar
Neal, J. C., Bhowmik, P. C., and Senesac, A. F. 1990. Factors influencing fenoxaprop efficacy in cool-season turfgrass. Weed Technol. 4:272–278.CrossRefGoogle Scholar
SAS Institute. 1982. SAS User's Guide. Cary, NC: SAS Institute. 956 p.Google Scholar
Watschke, T. L., Hamilton, G., and Harrison, S. 1988. Preemergence control of crabgrass in a mixed stand of cool-season turfgrasses. Proc. Northeast. Weed Sci. Soc. 42:166–167.Google Scholar