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Comparison of Fall Versus Spring Applications of Sulfometuron for Common Bermudagrass (Cynodon dactylon) Release

Published online by Cambridge University Press:  12 June 2017

James M. Taylor  and
G. Euel Coats
James M. Taylor
Affiliation:
Dep. of Plant and Soil Sci., Mississippi State Univ., Mississippi State, MS 39762
G. Euel Coats
Affiliation:
Dep. of Plant and Soil Sci., Mississippi State Univ., Mississippi State, MS 39762
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Abstract

A study was conducted to evaluate effects of application timing and sulfometuron rate on weed control and bermudagrass tolerance. Sulfometuron was applied at rates from 13 to 105 g ai/ha and compared to 1120 g ae/ha 2,4-D amine. Control of Italian ryegrass and common vetch was not affected by October, November, December, or March application dates and 39 to 105 g/ha sulfometuron provided equivalent control of both species 6 mo after the initial treatment. Percent green cover of bermudagrass at 6 mo after the initial treatment was 22% or less following March applications compared to 36% or greater when applied in October, November, or December. More bermudagrass injury occurred following March treatments of 52 g/ha or greater sulfometuron where green cover was 14% and less compared to 22 and 30% green cover following 13 g/ha sulfometuron or 1120 g/ha 2,4-D amine, respectively.

Keywords

Sulfometuron, methyl 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoate]2,4-D amine, dimethylamine salt of (2,4-dichlorophenoxy)acetic acidcommon bermudagrass, Cynodon dactylon (L.) Pers. # CYNDAcommon vetch, Vicia sativa L. # VICSAItalian ryegrass, Lolium multiflorum Lam. # LOLMURights-of-wayturf injuryweed controlVICSALOLMUCYNDA
Type
Research
Information
Weed Technology , Volume 10 , Issue 4 , December 1996 , pp. 947 - 950
Copyright
Copyright © 1996 by the Weed Science Society of America 

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References

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