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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1997_vol51.pdf#page=47
Last checked: 07/24/2013
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): | Bhowmik, P. C.;
Prostak, R. G. |
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| Author Affiliation: | Professor and Technician, Department of Plant and Soil Sciences, University of Massachusetts |
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| Title: | Potential use of exp-31130A for weed control in cool-season turfgrass |
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| Meeting Info.: | Newport, RI; January 6-9, 1997 |
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| Source: | Proceedings of the 51st Annual Meeting of the Northeastern Weed Science Society. Vol. 51, 1997, p. 47. |
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| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cool season turfgrasses; Herbicide efficacy; Herbicide evaluation; Herbicide resistance; Isoxaflutole; Selective weed control
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| Trade Names: | EXP 31130A |
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| Abstract/Contents: | "Selective control of one turfgrass species in an established monoculture turfgrass is a difficult task. There are not many options in selective control of one species. Search continues to explore the possibility of selective control of one turfgrass species in a mono-or mixed- turfgrass stands. Our objective was to examine the tolerance of various turfgrass species to EXP-31130A. Both greenhouse and field experiments were conducted. Turfgrass species included in these studies were 'Penncross' creeping bentgrass (Agrostis palustris Huds.), 'SDF' bentgrass (a local New England type creeping bentgrass), Kentucky bluegrass (Poa pratensis L.), perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinaceae Schreb.), fine fescue (Festuca rubra L.) and annual bluegrass (Poa annua L.) Turfgrass plugs (10.2 cm-diameter) were taken from established monoculture turfgrass stands in the field. These plugs were established on sand culture pots in the greenhouse. Pots were watered daily as needed and the turfgrass was mown to 2 cm once a week. After 4 weeks of growth in the greenhouse, EXP-31130A at 0,100, 200, 400, 600 and 800 g ai ha₋1] was applied postemergence to these species. Treatments were applied with a CO₂-backpack sprayer at a pressure of 152 kPa in 675 L ha₋1]. Foliar injury to turfgrass species was visually assessed on a scale of 0 to 100% over a 8-wk period. Also, dry weights of above-ground biomass were determined for final evaluation. Creeping bentgrass, SDF bentgrass, Kentucky bluegrass showed differential tolerance to EXP-31130A. Creeping bentgrass was most susceptible (70% reduction), while 'SDF' bentgrass exhibited 55 to 60% reduction at the 200 g ha₋1]. Tall fescue was most tolerant to EXP-31130A with only 5 to 14% dry weight reduction at the 200 to 800 g ai ha₋1], respectively. Red fescue, perennial ryegrass, and Kentucky bluegrass were moderately tolerant (5 to 20% reduction) to the 200 g ai ha₋1] rate. However, the highest rate (800 g ha₋1]) resulted in 40 to 55% dry weight reduction. In another experiment, annual bluegrass was tolerant to the postemergence application of EXP-31130A at 105 g ai ha₋1] rates. In contrast, EXP 31130A applied preemergence reduced annual bluegrass stand, ranging from 18 to 60% stand with 17.5 to 175 g ha₋1]. In summary, differential turfgrass species tolerance to EXP-31130A could be ranked tall fescue as the most tolerant species, followed by red fescue, perennial ryegrass, Kentucky bluegrass, 'SDF' bentgrass, and 'Penncross' creeping bentgrass. Results indicate potential use of this product in selective control of creeping bentgrass in other established turfgrass species." |
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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):
Bhowmik, P. C., and R. G. Prostak. 1997. Potential use of exp-31130A for weed control in cool-season turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 51:p. 47. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1997_vol51.pdf#page=47
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 51 |
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