Full TGIF Record # 638
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Web URL(s):http://www.newss.org/proceedings/proceedings_1980_vol34.pdf#page=365
    Last checked: 07/29/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Bing, A.; O'Knefski, R.
Title:Some treatments for veronica and oxalis control in turfgrass
Source:Proceedings of the Annual Meeting of the Northeastern Weed Science Society. Vol. 34, 1980, p. 365.
Publishing Information:Ithaca, NY: Northeastern Weed Science Society
Keywords:TIC Keywords: Dicamba; 2,4-D; Mecoprop
Geographic Terms:New York
Abstract/Contents:With the loss of silvex [2-(2,4,5-trichlorophenoxy)propionic acid] there is definite need for a chemical to control yellow wood sorrel ( Oxalis stricta L. an annual, and Oxalis corniculata L., a perennial form). Small scale earlier tests by the authors showed silvex to give inadequate control of Oxalis. Tests were made on Oxalis-infested turf areas at the West Hills School at Huntington Station, N. Y. and the Long Island Horticultural Research Laboratory at Riverhead, N.Y. in mid-July. A commercial formulation of 2,4-D [(2,4-dichlorophenoxy)acetic acid], dicamba (3,6-dichloro-o-anisic acid) and mecoprop [2-(4-chloro-o-tolyl)oxylpropionic acid] at 2 qt/A; 2,4-D plus mecoprop; or dicamba at recommended rates were ineffective against Oxalis. The experimental compounds 76A 510 and 77A 582 which are mixtures of equal amounts of 2,4-D and dichlorprop [2-(2,4-dichlorophenoxy)propionic acid] at 1 and 1.5 lb of each/A gave what appeared to be good kill but after 6-8 weeks there was regrowth from basal buds. Repeat treatments were made. Ground ivy and white clover appeared to be completely knocked out by the 2,4-D dichlorprop treatments. Different species of speedwell ( Veronica spp.) require different herbicides for effective control. DCPA (dimethyl tetrachloroterephthalate) applied postemergence to creeping speedwell (Veronica filiformis Sm.) gives good control. A comparison of a May 7 application of DCPA at 12 lb/A with 6 lb on May 7 and again on June 19 showed the repeat treatment to give slightly better control as of Oct. 19. HLR ACR 1255 at 0.5 oz/100 sq ft on May 7 gave good initial control as observed June 19 but there was considerable regrowth by Oct. 19. Controlling Oxalis is still a problem but DCPA is effective against Veronica Filiformis.
Language:English
See Also:Other items relating to: 2, 4 - D in Turf
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bing, A., and R. O'Knefski. 1980. Some treatments for veronica and oxalis control in turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 34:p. 365.
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Web URL(s):
http://www.newss.org/proceedings/proceedings_1980_vol34.pdf#page=365
    Last checked: 07/29/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .N62
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