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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2007.pdf#page=66
Last checked: 06/28/2013
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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): | McDonald, S. J.;
Fidanza, M. A.;
Fanok, J. |
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| Author Affiliation: | McDonald: Turfgrass Disease Solutions LLC, Pottstown; Fidanza: The Pennsylvania State Univ., Reading; Fanok: Brookside Country Club, Pottstown, PA |
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| Title: | Annual bluegrass and dollar spot control as influenced by herbicides and plant growth regulators |
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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.: | Baltimore, Maryland: January 2-5, 2007 |
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| Source: | Proceedings of the Sixty-First Annual Meeting of the Northeastern Weed Science Society. Vol. 61, 2007, p. 48. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bispyribac-sodium; Disease control; Dollar spot; Growth regulator evaluation; Herbicide evaluation; Herbicide injury; Poa annua control; Poa trivialis
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| Abstract/Contents: | "Bispyribac-sodium was released in 2004 and labeled for control of Poa annua (L.) and Poa trivialis (L.) in creeping bentgrass (Agrostis stolonifera L.) and perennial ryegrass (Lolium perenne L.) fairway turf. Research has shown that bispyribac-sodium has the potential for Poa annua and Poa trivialis management and that optimal time C. to apply this product may be when the average ambient air temperatures is 18 Golf course superintendents frequently apply other herbicides and plant growth regulators prior to this optimal time and information regarding possible interactions of these chemicals with bispyribac-sodium is warranted. This study was conducted on a fairway maintained at 1.3 cm height, located in southeastern Pennsylvania, and comprised of approximately 92 to 96% creeping bentgrass and 4 to 8% Poa annua. Treatments include: dithiopyr alone (0.425 kg ai/ha), dithiopyr (0.425 kg ai/ha) followed by bispyribac-sodium (0.075 kg ai/ha) at 38 and 51 days later, trinexapac-ethyl alone (0.047 kg ai/ha), trinexapac-ethyl (0.047 kg ai/ha) followed by bispyribac-sodium (0.075 kg ai/ha) at 13 and 26 days later, paclobutrazol (0.105 kg ai/A) alone, and paclobutrazol (0.105 kg ai/A) followed by bispyribac-sodium (0.075 kg ai/ha) at 13 and 26 days later. Treatments were applied using a CO2-powered backpack sprayer calibrated to deliver 408 gal water per hectare at 250 kPa. Data were subjected to analysis of variance and significantly different means were separated using Fisher's least significance different test at P <= 0.05. Plots were rated for percent plot area covered by Poa annua, treatment-induced injury to creeping bentgrass and Poa annua, overall turfgrass quality, and dollar spot (Sclerotinia homoeocarpa F.T. Bennett) severity. No statistically significant differences were observed with Poa annua control or injury when examined among plots treated with a plant growth regulator or herbicide followed by bispyribac-sodium. Plots treated with dithopyr alone, trinexapac-ethyl alone, or paclobutrazol alone had little effect on Poa annua population, however, all plots treated with bispyribac-sodium exhibited a statistically significant reduction in Poa annua. Also, consistently less dollar spot severity was observed in those plots treated with bispyribac-sodium. However, a slight decrease in dollar spot severity was observed in plots treated with the paclobutrazol or trinexapac-ethyl followed by bispyribac-sodium when compared to plots treated with bispyribac-sodium alone. Data from this field study indicates there were no negative effects from pre-treating a mixed stand of creeping bentgrass and Poa annua with dithiopyr, trinexapacethyl or paclobutrazol when followed by bispyribac-sodium. All bispyribac-sodium treatments effectively controlled Poa annua and little injury was observed to the creeping bentgrass." |
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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):
McDonald, S. J., M. A. Fidanza, and J. Fanok. 2007. Annual bluegrass and dollar spot control as influenced by herbicides and plant growth regulators. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 61:p. 48. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2007.pdf#page=66
Last checked: 06/28/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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