Full TGIF Record # 75822
Item 1 of 1
Publication Type:
Author(s):Olson, Wayne; Johnson, B. J.
Author Affiliation:Johnson: Weed Control/PGR, Georgia Station, University of Georgia, Griffin, GA
Title:Crabgrass control in centipedegrass with PRE and POST herbicides
Meeting Info.:Griffin, GA: July 26, 1995
Source:The University of Georgia Turfgrass Field Day. July 1995, p. 5-7.
# of Pages:3
Abstract/Contents:Presents a study to "determine: a) the effects of reduced rate of PRE herbicides applied in late winter and followed by POST herbicides in late spring or early summer, and b) determine the influence of multiple applications and tank-mixes of POST herbicides on crabgrass control and influence of treatments on tolerance of centipedegrass." Results indicate that "large crabgrass control in 1994 was 92% when either Dimension was applied as PRE at 0.25 lb ai/A late February or when Vantage was applied as POST at 0.2 lb ai/A late June. In 1994, there was no advantage from sequential Dimension application made in February and July from Dimension applied in February and Vantage applied in July...In 1994, a single application of Drive (experimental herbicide) severely injured centipedegrass and controlled crabgrass for only 3 to 6 weeks. Dimension applied POST caused only minor leaf discoloration to centipedegrass in 1994. Crabgrass was effectively controlled (>70%) in 1994 for 4 weeks with a single application of Dimension at 0.25 lb ai/A and at 8 weeks with two applications at the same rate. In 1994, when Vantage was applied to centipedegrass at 0.2 lb ai/A on May 24, crabgrass was effectively (82%) controlled for 15 weeks. The control was 95% during the same time when Vantage at 0.2 lb ai/A was tank-mixed with Dimension at 0.125 lb ai/A. There was no benefit in crabgrass control from repeated Vantage treatments when compared with the tank-mixed treatment."
Note:Stop 1
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Olson, W., and B. J. Johnson. 1995. Crabgrass control in centipedegrass with PRE and POST herbicides. Univ. Geo. Turfgrass Field Day. p. 5-7.
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