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| Publication Type:
| Report |
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| Author(s): | Tucker, K. A.;
Whitwell, T. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC 29634 |
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| Title: | Yellow nutsedge control in bermudagrass |
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| Meeting Info.: | 48th Annual Meeting, Memphis, TN, January 16-18, 1995 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 48, January 1995, p. 109. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cyperus esculentus; Cynodon dactylon; Herbicides; Imazaquin; Bentazon
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| Abstract/Contents: | "Yellow nutsedge (Cyperus esculentus) is a warm season perennial weed that is difficult to control in turfgrasses. Its coarse texture reduces the aesthetic value of high quality turf. Yellow nutsedge produces tubers which make long term control very difficult. Traditionally, bentazon, MSMA, and imazaquin are used to control yellow nutsedge. However, these herbicides only suppress yellow nutsedge. Manage, a new herbicide for nutsedge control in turfgrasses has recently been introduced. Research was conducted in 1993 and 1994 to determine the effectiveness of Manage, other postemergence herbicides, and herbicide combinations on long term yellow nutsedge control. Two meter X two meter plots were established on 'Tifway' bermudagrass which contains a high population of yellow nutsedge. The experiment was a randomized complete block design with four replications. Soil samples for tuber counts were taken in December 1993 and 1994 using a 10 cm diameter X 15 cm depth soil core. Plots received the same treatments in 1993 and 1994. Treatments were applied with a ² pressurized backpack sprayer delivering 280 1/ha. All treatments were applied postemergent and contained a nonionic surfactant at 0.25% v/v. Treatment application dates were 7/7/93, 10/1/93, 8/2/94 and 9/21/94. Treatments included: 1. Imazaquin- 0.28 kg ai/ha, 2. Manage- 0.07 kg ai/ha, 3. MSMA- 2.24 kg ai/ha, 4. Bentazon- 1.12 kg ai/ha, 5. Imazaquin- 0.28 kg ai/ha; MSMA- 2.24 kg ai/ha, 6. Manage- 0.071 kg ai/ha; MSMA- 2.24 kg ai/ha, 7. Imazaquin- 0.28 kg ai/ha; Bentazon- 1.12 kg ai/ha, 8. Manage- 0.07 kg ai/ha; Bentazon- 1.12 kg ai/ha, 9. Imazaquin- 0.28 kg ai/ha; Manage- 0.07 kg ai/ha, 10. Control. Data analysis was performed by ANOVA with means separation by LSD. All treatments except bentazon (1.12 kg ai/ha) provided greater than 85% suppression of yellow nutsedge. However, all treatments were ineffective in reducing tuber numbers for long term control of yellow nutsedge. Herbicide combinations appeared to provide more consistent nutsedge suppression than herbicides applied alone. Bermudagrass injury was only slight with any treatment." |
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| Language: | English |
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| References: | 0 |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tucker, K. A., and T. Whitwell. 1995. Yellow nutsedge control in bermudagrass. South. Weed Sci. Soc. Proc. 48:p. 109. |
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MSU catalog number: SB 611 .S6 v.48 |
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