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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2006.pdf#page=14
Last checked: 07/22/2013
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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): | Willis, J. B.;
Askew, S. D. |
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| Author Affiliation: | Virginia Tech, Blacksburg, Virginia |
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| Title: | Using a wet blade mower for pest control, fertility, and growth retardation in fine turfgrass |
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| Section: | Research posters
Other records with the "Research posters" Section
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| Meeting Info.: | Providence, RI: January 3-6, 2006 |
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| Source: | Proceedings: NortheasternWeed Science Society. Vol. 60, 2006, p. 9. |
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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: Mowers; Burch wet blade; Weed control; Weed infestation; Assessment; Pest control; Growth retardation; Application methods; Crabgrass control; Trifolium repens
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| Abstract/Contents: | "Wet Blade (WB) technology directs chemical to the cut portion of leaf surfaces during mowing by wetting the underside of mower blades with solution. This dual action of mowing and applying a solution eliminates the need for separate chemical application to the mown area. Applying chemical to the cut portion of the leaf allows the product to move directly into the plant via xylem and phloem tissue. This action also limits the likelihood of herbicide movement from spray drift. Mowers commonly overlap turf to avoid obstructions in the lawn and a WB mower may cause turfgrass injury or discoloration due to such overlapping. Since most WB research has been conducted with single pass treatments, information is needed to determine likelihood of streaks or discoloration caused by WB mowers in turf. Past research on weed control has shown that WB mowers were about 75% as effective as foliar spray for controlling weeds like smooth crabgrass (Digitaria ischaemum) in fine turf. Programs that provide complete weed control with WB mowers are needed to facilitate turf managers acceptance of WB. Our objectives were to evaluate white clover and smooth crabgrass control with single or repeated WB applications of Drive, Acclaim, or Speedzone and to determine likelihood of streaking due to multiple overlaps of a WB mower when applying plant growth retardants or chemical fertilizers. All trials were conducted in Blacksburg, VA on 8 by 20 m plots. In weed control studies, treatments for crabgrass control included quinclorac (Drive™) at 1 lb/A and fenoxaprop (Acclaim ™) at 28 oz/A applied in 1, 2, 3, and 5 treatments of fractionalized rates. For example when applied 5 times, the quinclorac rate was 0.2 lb/A during each treatment. Treatments for white clover control included quinclorac at 1 lb/A and a three-way pre-mixture product (SpeedZone ™) at 5 pt/A applied at fractionalized rates as the crabgrass study. In the "streaking" study, treatments included glyphosate (Roundup PRO™) at 5 oz/A and liquid iron (Ferromec ™) at 2.5 gal/A applied to a uniform stand of turf-type tall fescue. These treatments were applied once, twice, or three times by overlapping the plot center repeatedly with the mower. Smooth crabgrass was controlled between 63 and 88% regardless of treatment with statistical differences between treatments. The high level of crabgrass infestation and poor turfgrass cover is blamed for lack of effective weed control from both foliar spray and WB treatments and the study will be repeated elsewhere. White clover control was statistically equivalent regardless of WB treatment or when compared to a full rate foliar treatment. Numerical trends indicate that 3 to 5 WB treatments are more effective that 1 or 2. Additional studies were conducted and found that increasing herbicide rates by 0.25% can result in broadleaf weed control from single WB treatment that is numerically equivalent to foliar spray. WB treatments were not as likely to cause streaking as foliar spray treatments. Repeated overlaps of glyphosate with foliar spray reduced chlorophyll content, increased visually estimated streaking, and decreased turfgrass color compared to the same treatment applied with the WB mower." |
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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):
Willis, J. B., and S. D. Askew. 2006. Using a wet blade mower for pest control, fertility, and growth retardation in fine turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 60:p. 9. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2006.pdf#page=14
Last checked: 07/22/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 60 |
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