Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-27T06:55:41.661Z Has data issue: false hasContentIssue false
  • English
  • Français

Tolerance of Four Seashore Paspalum (Paspalum vaginatum) Cultivars to Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

B. Jack Johnson  and
Ronny R. Duncan
B. Jack Johnson
Affiliation:
Crop and Soil Science, University of Georgia, Georgia Station, 1109 Experiment St., Griffin, GA 30223-1797
Ronny R. Duncan
Affiliation:
Crop and Soil Science, University of Georgia, Georgia Station, 1109 Experiment St., Griffin, GA 30223-1797
Get access Rights & Permissions [Opens in a new window]

Abstract

A field study was conducted on tolerance of four seashore paspalum cultivars to postemergence (POST) herbicides in Georgia during 1995 and 1996. Quinclorac (0.8 kg/ha) and MON 12000 (0.07 kg/ha) at recommended rates were the only POST herbicides that did not affect the performance of any seashore paspalum cultivar (≥ 89%). When the rates were increased to three times recommended, the quality of ‘AP 10’ (≥ 96%) and ‘PI 28960’ (93%) cultivars was not affected, but the quality of ‘HI 25’ (≥ 84%) and ‘K-7’ (77%) was lower when compared with respective untreated plots. HI 25 recovered within 4 wk, but K-7 required 6 wk or longer. Dicamba at 1.7 kg/ha affected the quality of K-7 (69%) more at 2 wk than the other cultivars (85 to 92%). Diclofop, imazaquin, and 2,4-D plus mecoprop plus dicamba significantly reduced the quality of all cultivars 2 wk after treatment (WAT). The quality of all cultivars was similar at 2 WAT with diclofop at 1.1 kg/ha (79 to 84%). However, when treated with imazaquin at 0.4 kg/ha, the quality of K-7 (65%) was lower than AP 10 (85%), HI 25 (77%), and PI 28960 (81%), and when treated with 2,4-D plus mecoprop plus dicamba at 1.1 + 0.6 + 0.1 kg/ha, the quality of AP 10 (75%), PI 28960 (72%), and K-7 (57%) was lower than HI 25 (87%). POST applications of quinclorac, dicamba, and MON 12000 were safe to use for weed control in paspalum cultivars, whereas the safety of diclofop and imazaquin was marginal, and 2,4-D plus mecoprop plus dicamba was unacceptable.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic acid: diclofop, (±)-2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acidMON 12000, methyl 5-[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonylaminosulfonyl]-3-chloro-1-methyl-1-H-pyrazole-4-carboxylateimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidmecoprop, (±)-2-(4-chloro-2-methylphenoxy) propanoic acidquinclorac, 3,7-dichloro-8-quinolinecarboxylic acid2,4-D, (2,4-dichlorophenoxy) acetic acid‘AP 10', ‘HI 25', ‘PI 28960', ‘K-7’ seashore paspalum, Paspalum vaginatum Swartz # PASVATurfgrass toleranceturfgrass qualityPASVAPOST, postemergencePRE, preemergenceWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 11 , Issue 4 , December 1997 , pp. 689 - 692
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 turfgrass. Weed Technol. 4:387–393.CrossRefGoogle Scholar
Chase, A. 1971. Manual of grasses of the United States. 2nd ed, Volume 2. USDA Misc. Pub. No. 200. pp. 928–929, 933.Google Scholar
Cudney, D. W., Gibeault, V. A., Elmore, C. L., and Reints, J. S. 1995. Sensitivity of seashore paspalum to post emergence turf herbicides. Calif. Turfgrass Culture 45(3&4): 22–23.Google Scholar
Duncan, R. R. 1996a. The environmentally sound turfgrass of the future. USGA Green Section Record 34(1): 9–11.Google Scholar
Duncan, R. R. 1996b. Seashore paspalum: the next generation turf for golf courses. Golf Course Management 64(4): 49–51.Google Scholar
Duncan, R. R. 1997. Seashore paspalum responds to demands of stewardship. Golf Course Management 65:49–51.Google Scholar
Harivandi, M. A., Elmore, C. L., and Henry, J. M. 1987. An evaluation of herbicides on seashore paspalum. Calif. Turfgrass Culture 17(1&2): 2–5.Google Scholar
Johnson, B. J. 1978. Effect of VEL 4207 and dicamba on bermudagrass and broadleaf weeds. Agron. J. 70:143–145.Google Scholar
Johnson, B. J. 1993. Sequential herbicide treatments for large crabgrass (Digitaria sanguinalis) and goosegrass (Eleusine indica) control in bermudagrass (Cynodon dactylon) turf. Weed Technol. 7:674–680.Google Scholar
Johnson, B. J. 1995. Frequency of Drive (quinclorac) treatments on common bermudagrass tolerance and on large crabgrass control. J. Environ. Hortic. 13(2): 104–118.Google Scholar
Johnson, B. J. and Murphy, T. R. 1992. Purple nutsedge control with imazaquin in bermudagrass turf. Ga. Agric. Res. Bull. 408. 11 p.Google Scholar
Johnson, B. J. and Murphy, T. R. 1993. Postemergence control of summer weeds in turfgrasses. Ga. Agric. Res. Bull. 413. 27 p.Google Scholar
Johnson, B. J. and Murphy, T. R. 1995. Winter annual weed control with herbicides in turfgrasses. Ga. Agric. Res. Bull. 421. 18 p.Google Scholar
Johnson, B. J. and Murphy, T. R. 1996. Efficacy of preemergence herbicides in turfgrass. Ga. Agric. Res. Bull. 424. 23 p.Google Scholar
SAS Institute. 1982. SAS User's Guide. Cary, NC: SAS Institute. 956 p.Google Scholar
Tavares, J. and DeFrank, J. 1992. Herbicides on seashore paspalum (Paspalum vaginaturn Swartz.) research summary. 1992. Hawaii Landscape Industry News 6(4): 22–23.Google Scholar
Vencill, W. K., Richburg, J. S. III, Wilcut, J. W., and Hawf, L. R. 1995. Effect of MON-12037 on purple (Cyperus rotundus) and yellow (Cyperus esculentus) nutsedge. Weed Technol. 9:148–152.Google Scholar