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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2003_vol57.pdf#page=98
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Borger, J. A.;
Watschke, T. L.;
Brosnan, J. T. |
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| Author Affiliation: | Penn State University, University Park, Pennsylvania |
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| Title: | Phytotoxicity on creeping bentgrass in 2002 |
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| Section: | Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
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| Meeting Info.: | Hyatt Regency Hotel, Baltimore, MD: January 6-9, 2003 |
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| Source: | Proceedings of the 57th Annual Meeting of the NortheasternWeed Science Society. Vol. 57, 2003, p. 98. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Broadleaf herbicides; Carfentrazone-ethyl + 2,4-D + Mecoprop + Dicamba; Herbicide evaluation; Herbicide safety; Phytotoxicity
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| Cultivar Names: | Penneagle |
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| Trade Names: | Speed Zone |
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| Abstract/Contents: | "The first study was conducted on a mature stand of "Penneagle" fairway height creeping bentgrass (Agrostis stolonifera), at the Valentine Turfgrass Research Center, Penn State Univ., University Park, Pa. [PA] The objective of the study was to determine the phytotoxicity of selected broadleaf herbicides on fairway height creeping bentgrass. All of the treatments were applied on June 7, 2002 using a three foot CO2 powered boom sprayer calibrated to deliver 40 gpa using two, flat fan, 11004 nozzles at 40 psi. The individual plot size was 30 square feet. The study area was mowed with a reel mower at one half inch with clippings returned. No significant phytotoxicity was observed on the June 8 rating date (24 hours after application). However, on the June 10 rating date (three days after application) phytotoxicity was evident on bentgrass treated with all treatments. Although phytotoxicity was evident, only bentgrass treated with Speed Zone at the high rate, Power Zone, Trimec Classic, EH 1349 at the high rate, and NB 30165 had phytotoxicity ratings that were below acceptable. By the June 14 rating, only Power Zone at the low rate and Trimec Southern treated turf had acceptable phytotoxicity ratings. On June 21, most of the injured turf had recovered to acceptable ratings with the exception of that which was treated with Speed Zone at the high rate. Interestingly, on the June 28 rating date Speed Zone at the high rate continued to cause unacceptable phytotoxicity ratings, but turf treated with Speed Zone St. Augustine at the high rate, Trimec Classic and EH 1349 also caused unacceptable phytotoxicity ratings. Only Speed Zone at the high rate caused unnacceptable phytotoxicity on any rating after June 28 (July 2). The second study was conducted on a mature stand of "Penneagle" creeping bentgrass (Agrostis stolonifera) at the Valentine Turfgrass Research Center, Penn State Univ., University Park, PA. The objective of the study was to asses [assess] the phytotoxic effect of multiple applications of Acclaim Extra on fairway height "Penneagle" creeping bentgrass. This study was a randomized complete block design with three replications. All treatments were applied on June 4, June 19, July 1, July 16, and July 31, 2002 using a three foot CO2 powered boom sprayer calibrated to deliver 40 gpa using two, flat fan, 11004 nozzles at 40 psi. The test site was maintained similar to that of a golf course fairway with respect to irrigation, fertilization and mowing. The test area was maintained at 0.5 inch using a reel mower that collected the clippings three times per week. Both rates (label and 2X) of Acclaim Extra caused unacceptable phytotoxicity on "Penneagle" creeping bentgrass on June 28, July 3, and July 26. Turf treated with the 2X rate was found to have unacceptable phytotoxicity ratings on all dates except July 18. It appears that caution should be exercised when making sequential application of Acclaim Extra on "Penneagle" creeping bentgrass even when using the label rate." |
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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):
Borger, J. A., T. L. Watschke, and J. T. Brosnan. 2003. Phytotoxicity on creeping bentgrass in 2002. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 57:p. 98. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2003_vol57.pdf#page=98
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 57 |
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