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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=89
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Beck, L. L.;
Cooper, T.;
Straw, C.;
Henry, G. M. |
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| Author Affiliation: | Texas Tech University, Lubbock, TX |
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| Title: | Effect of preemergence herbicides on spring dead spot recovery in bermudagrass fairways |
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| Section: | Posters
Other records with the "Posters" Section
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| Meeting Info.: | Charleston, South Carolina: January 23-25, 2012 |
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| Source: | 2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 17. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Application timing; Comparisons; Cynodon dactylon; Golf fairways; Preemergence herbicides; Spring dead spot; Turf recovery
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| Abstract/Contents: | "Turfgrass managers often make preemergence herbicide applications in early spring for annual grass and broadleaf weed control in bermudagrass fairways. This may coincide with the appearance of spring dead spot (SDS) disease. Utilization of certain preemergence herbicides may delay bermudagrass recovery from SDS and further contribute to a weakened turfgrass system. Therefore, field trials were conducted at Hillcrest Country Club in Lubbock, TX during the fall of 2010 to examine SDS recovery of a bermudagrass fairway in response to preemergence herbicide applications. Plots measuring 1.5 m2 were arranged in a randomized complete block design with four replications of treatments. Preemergence herbicides were applied on March 15, 2011 to a bermudagrass fairway exhibiting symptoms of SDS disease. Treatments were applied with a CO2 backpack sprayer equipped with XR8003VS nozzles calibrated to deliver 304 L ha-1 at 276 kPa and consisted of prodiamine at 0.73 kg ai ha-1, pendimethalin at 2.5 kg ai ha-1, oryzalin at 1.68 kg ai ha-1, dithiopyr at 0.56 kg ai ha-1, oxadiazon at 3.4 kg ai ha-1, indaziflam at 0.035 kg ai ha-1, and dimethenamid at 1.68 kg ai ha-1. An untreated check was included for comparison. All treatments received a sequential application on June 15, 2011. Treatments were watered in following application with 0.6 cm of water. Visual ratings of %SDS disease cover were recorded every two weeks until bermudagrass recovered completely in the untreated check plots. SDS cover was converted to %SDS recovery by comparing back to initial ratings. Data were subjected to analysis of variance (ANOVA) and means were separated using Fisher's Protected LSD at the 0.05 significance level. All treatments exhibited less SDS recovery compared to the untreated check except oxadiazon 14 weeks after initial treatment (WAIT). On June 21, 2011 (14 WAIT) the untreated check exhibited 46% SDS recovery while oxadiazon exhibited 55% SDS recovery. SDS recovery was 33% for pendimethalin, 25% for dimethenamid, 23% for prodiamine, 21% for oryzalin, 19% for dithiopyr, and 15% for indaziflam 14 WAIT. This trial will be replicated over time." |
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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):
Beck, L. L., T. Cooper, C. Straw, and G. M. Henry. 2012. Effect of preemergence herbicides on spring dead spot recovery in bermudagrass fairways. South. Weed Sci. Soc. Proc. 65:p. 17. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=89
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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