Full TGIF Record # 13954
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Web URL(s):http://www.newss.org/proceedings/proceedings_1988_vol42.pdf#page=185
    Last checked: 07/25/2013
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Publication Type:
i
Report
Author(s):Olson, Brian D.; Hall, Anthony B.
Author Affiliation:Dow Chemical U.S.A.
Title:Postemergence Broadleaf Weed Control in Turf with Non-Phenoxy Herbicide Combinations.
Source:Proceedings of the 42nd Annual Meeting of the Northeastern Weed Science Society. Vol. 42, 1988, p. 185.
Publishing Information:Ithaca, N. Y. : Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Trifolium repens; Plantago; Taraxacum officinale; Prunella vulgaris; Herbicides; Fluroxypyr; Herbicide combinations
Abstract/Contents:"Two field studies were conducted in 1987 to determine the efficacy of post-emergence applications of triclopyr, clopyralid, dicamba, and chlorflurenol mixtures on broadleaf weeds in turf. Both studies were conducted in Geneva, New York. Site A was located at Seneca Lake Country Club and site B at Glenwood Cemetery. The predominant weed species at site A were white clover (Trifolium repens L.), narrow leaf plantain (Plantago lanceolata L.), dandelion (Taraxacum officinale Weber in Wiggers) and healall (Prunella vulgaris L.). At site B the predominant weed species were white clover, healall and ground-ivy (Glechoma hederacea L.). The weed pressure at sites A and B was heavy and moderate, respectively. Each study was set up in a randomized complete block design with four replications of each treatment. Plots were 3 x 15 ft with one foot check (untreted) strips separating every other plot. Treatments were applied with a CO2 backpack sprayer. The spray boom was held 9 inches above the ground and had three 8004 LP TeeJet (Spray Systems Company, Chicago,IL) nozzles spaced 12 inches apart and operated at 15 p.s.i. Wearing protective clothing, the researcher traveled with the sprayer at 2.5 mph to deliver 79.2 gal/A. At sites A and B the treatments were applied on 10 and 16 June, respectively, and the plots rated on 22 and 28 July, respectively. Percent control of each weed species was determined by comparing the plot area to the two nearest check (untreated) strips. Chlorflurenol was applied in combination with the non-phenoxy compounds, triclopyr, clopyralid, dicamba, triclopyr plus dicamba, and triclopyr plus clopyralid. Each compound used in the above treatments was applied at 0.125 lb/A. Triclopyr at 0.375 and 0.5 lb/A with 0.063 and 0.125 lb/A of clopyralid were applied in combination in a two by two factorial arrangement. Triclopyr (amine and ester), clopyralid, and fluroxypyr ester were applied alone at different rates (Table 1). Commercially available phenoxy mixtures of triclopyr plus 2,4-D and 2,4-D plus mecoprop plus dicamba were applied at different rates (Table 1). The above formulations were amines unless noted. The only treatments to provide consistent control (>90%) of white clover were those with clopyralid. None of the non-phenoxy mixtures offerd greater than 80% control of ground-ivy as did the 2,4-D mixtures. Alone at 0.125 lb/A, none of the non-phenoxy compounds offered more than 60% control of more than one weed species, except fluroxpyr. The combinations of chlorflurenol and triclopyr or clopyralid, chlorflurenol plus triclopyr plus clopyralid, and triclopyr plus clopyralid all controlled (>60%) two weed species. Chlorflurenol plus triclopyr plus dicamba was the only non-phenoxy treatment to provide control (>60%) of three weeds as did the commercial phenoxy mixtures. These results suggest that a combination of three or four non-phenoxy herbicides may be necessary to provide sismilar broadleaf weed control to commercially available phenoxy herbicide mixtures."
Language:English
References:0
Note:1 Table
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Olson, B. D., and A. B. Hall. 1988. Postemergence Broadleaf Weed Control in Turf with Non-Phenoxy Herbicide Combinations.. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 42:p. 185.
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Web URL(s):
http://www.newss.org/proceedings/proceedings_1988_vol42.pdf#page=185
    Last checked: 07/25/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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