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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kelly, S. T.;
Coats, G. E. |
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| Author Affiliation: | Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762 |
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| Title: | Southern crabgrass control in warm-season turfgrass with sulfentrazone |
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| Meeting Info.: | 50th Annual Meeting, Houston, TX, January 20-22, 1997 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 50, January 1997, p. 72. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Two experiments were conducted in 1996 to evaluate sulfentrazone in combination with several commonly used PRE herbicides for southern crabgrass (Digitaria ciliaris (Retz.) Koel) control. Each experiment was conducted on a well-established stand of common bermudagrass (Cynodon dactylon (L.) Pers.) maintained at a height of 1.375 in. All treatments were applied using a CO]2 powered backpack sprayer calibrated to deliver 25 GPA. Experiment I evaluated sulfentrazone at 0, 0.125, 0.25, or 0.375 lb ai/A in combination with 1.5, 2.25, or 3.0 lb ai/A pendimethalin, 1.0, 1.5, or 2.0 lb ai/A trifuralin, 0.5, 0.75, or 1.0 lb ai/A prodiamine, 0.25, 0.375, or 0.5 lb ai/A dithiopyr, or 2.0, 2.5, or 3.0 lb ai/A oxadiazon. The experiment design was a split plot with PRE herbicides as the main plot factors and sulfentrazone as the split plot factor. Analysis of variance indicated no interaction between sulfentrazone and any PRE herbicide. When averaged over sulfentrazone rates, only the highest rate of pendimethalin or prodiamine controlled southern crabgrass at least 80% by 180 days after treatment (DAT). Trifluralin provided no more than 15% control at this evaluation date. The highest rate of dithiopyr or oxadiazon controlled southern crabgrass no more than 60% at this evaluation interval. When averaged over PRE herbicides, all rates of sulfentrazone controlled southern crabgrass equally at less than 50%. Experiment II evaluated pre-packaged combinations of pendimethalin + sulfentrazone at 1.5 + 0.125, 2.25 + 0.187, or 3.0 + 0.375 lb ai/A, respectively, prodiamine + sulfentrazone at 0.5 + 0.125, 0.75 + 0.188, or 1.0 + 0.25 lb ai/A, respectively, or trifluralin + sulfentrazone at 1.0 + 0.125, 1.5 + 0.188, or 2.0 + 0.25 lb ai/A, respectively. These combinations were compared to each PRE herbicide alone at the current labeled rate. Trifluralin controlled southern crabgrass equally, regardless of addition of sulfentrazone. The highest rate of prodiamine or pendimethalin in the combination treatments was required to provide control equivalent to either herbicide alone. Sulfentrazone did not enhance control with lower rates of the PRE herbicides." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kelly, S. T., and G. E. Coats. 1997. Southern crabgrass control in warm-season turfgrass with sulfentrazone. South. Weed Sci. Soc. Proc. 50:p. 72. |
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MSU catalog number: SB 611 .S6 v. 50 |
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