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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1988_vol42.pdf#page=189
Last checked: 07/25/2013
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, Prasanta C. |
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| Author Affiliation: | University of Massachusetts |
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| Title: | Response of Kentucky Bluegrass to Dinitroaniline Herbicides. |
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| Source: | Proceedings of the 42nd Annual Meeting of the Northeastern Weed Science Society. Vol. 42, 1988, p. 189. |
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| Publishing Information: | Ithaca, N. Y. : Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Poa pratensis; Digitaria sanguinalis; Herbicides
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| Abstract/Contents: | "A field study was conducted on a mature stand of 'Baron' Kentucky bluegrass (Poa pratensis L.) in 1987. The objectives of the experiment were to 1) compare the effectiveness of five dinitroaniline herbicides in large crabgrass [Digitaria sanguinalis (L.) Scop.] control, and 2) examine the effects of the preemergence application of herbicides on rooting, tiller production, and rhizome growth of Kentucky bluegrass over the growing season. All treatments were applied preemergence on April 22, 1987 to 1 by 3 m plots with a CO2 backpack sprayer at a pressure of 152 kPa in 473 L/ha. The treatments were arranged in a randomized complete block design with three replictions. The experimental area was maintained at a height of 3.8 cm under low fertility. Turf injury, large crabgrass control, turf quality, tiller production, and rhizome growth were evaluated over the growing season. Two cylindrical 5-cm-diameter plugs were removed randomly from each field plot 4, 8, and 12 weeks after herbicide application (WAA) on May 20, June 17, and July 15, 1987, respectively. Each treatment consisted of 6 plugs. Plugs were individually potted in 15.2-cm-diameter plastic pots conatining coarse sand. The pots were arranged in a randomized complete block design on a greenhouse, roots were carefully washed on a water screen and removed from plugs. Rhizome and tiller counts, and root regrowth were determined. Benefin at 2.2 to 4.5 kg ai/ha, the premix combination (1:2 ratio) of trifluralin and benefin at 2.2 to 4.5 kg/ha, pendimethalin at 1.68 to 3.36 kg/ha, prodiamine at 0.56 to 2.24 kg/ha, and CGA-41065 at 0.84 to 3.36 kg/ha gave excellent large crabgrass control over the entire season. Maximum turf injury (38%) and thinning of Kentucky bluegrass was noted with the highest rate of the premix combination (1:2 ratio) of trifluralin and benefin at 4.5 kg/ha. Benefin at 4.5 kg/ha (highest rate) also injured Kentucky bluegrass. In general, higher rates of benefin (3.3 and 4.5 kg/ha) and the premix combination of trifluralin and benefin (3.36 and 4.5 kg/ha) inhibited tiller production and rhizome growth of Kentucky bluegrass 4 and 8 WAA. Pendimethalin, prodiamine, and CGA-41065 did not inhibit either tiller production or rhizome growth. Prodiamine at 2.2 kg/ha reduced root regrowth (but not significantly) of Kentucky bluegrass." |
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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. 1988. Response of Kentucky Bluegrass to Dinitroaniline Herbicides.. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 42:p. 189. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1988_vol42.pdf#page=189
Last checked: 07/25/2013
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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