Full TGIF Record # 3062
Item 1 of 1
Publication Type:
i
Report
Author(s):Coats, G. E.
Author Affiliation:Mississippi State Univ., State College
Title:Annual bluegrass control with pronamide in Bermudagrass turf
Source:Abstracts of the Annual Meeting of the Weed Science Society. 1974, p. 22-23.
Publishing Information:Weed Science Society of America
Keywords:TIC Keywords: Cynodon dactylon; Poa annua
Abstract/Contents:Propyzamide was applied to dormant common Bermudagrass [Cynodon dactylon at 0.3-1.7 kg/ha at 3 locations in Mississippi during 1971-72 and 1972-73 for the post-em. control of annual bluegrass [Poa annua]. The Bermudagrass was maintained during the growing season at 1.9 to 2.5 cm under golf fairway conditions. Rates of 0.5-0.7 kg/ha were required to give 95% control of P. annua with a February application if not irrigated. A 0.3 kg/ha application gave equivalent control, if treatment was followed immediately by sprinkler irrigation with 0.8 cm of water (1971-72). Post-em. control was obtained in 4 to 5 weeks. Applications made in March or April required 6 to 7 weeks for complete control of P. annua. In 1972-73, propyzamide was applied at 0.6, 1.1 and 1.7 kg/ha at monthly intervals from November to early April. No significant differences in control due to rate were observed until P. annua began to produce seed in January to early February. After January, control decreased or at least the time required to get complete suppression of the P. annua increased with decreasing rates of propyzamide. When treated at the 1 to 2.5 cm stage, in November and December, propyzamide caused excessive swelling and brittleness of P. annua at the base of the stem. Although fade-out was not observed for several weeks, 1 week after treatment no significant seed head production was observed in propzamide-treated plots.
Language:English
References:Unknown
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Coats, G. E. 1974. Annual bluegrass control with pronamide in Bermudagrass turf. Abstr. Annu. Meet Weed Sci. Soc. Am. p. 22-23.
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MSU catalog number: SB 611 .W42
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