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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1984_vol38.pdf#page=277
Last checked: 07/29/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Bhowmik, Prasanta C. |
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| Title: | New herbicides for crabgrass control in turfgrass |
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| Source: | Proceedings of the Annual Meeting of the Northeastern Weed Science Society. Vol. 38, 1984, p. 282-288. |
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| Publishing Information: | Ithaca, N. Y. : Northeastern Weed Science Society |
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| Keywords: | TIC Keywords: Digitaria ischaemum; Poa pratensis; DCPA; MSMA; Mecoprop; 2,4-D
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| Abstract/Contents: | Ten herbicides including three new experimental compounds were evaluated in the field for the control of smooth crabgrass [Digitaria ischaemum (Schreb.) Muhl.] in Kentucky bluegrass ( Poa pratensis L.). New experimental materials were examined against commercial standards for efficacy, injury to Kentucky bluegrass, and residual activity over the season. UC-77892 at 6.2 to 7.8 kg/ha, when applied either in preemergence or postemergence, provided good crabgrass control over the season inspite of having excellent crabgrass control for the first 8 to 11 weeks (up to July). The sequential application of UC-77892 60 days later, following a preemergence application on April 22 did not offer any added advantage in controlling crabgrass. There was no significant difference in crabgrass control between the flowable and wettable powder formulations of UC-77892. DCPA at 11.8 kg/ha and a combination of DCPA, MSMA, and MCPP plus 2,4-D at 11.8 + 2.2 + (1.33 + 1.27) kg/ha provided excellent season long crabgrass control with good safety to Kentucky bluegrass. Two formulations of benefin 4EC (A and B) at 5.6 kg/ha gave acceptable control with no detectable difference in efficacy. Preemergence application of oxadiazon (WP) at 3.4 kg/ha and treatment combination of benefin and trifluralin (2:1, w/w) at 3.4 kg/ha also provided excellent season long crabgrass control. No injury to Kentucky bluegrass was observed. K-1441 when used as preemergence treatments at various rates (2.2 to 9.0 kg/ha) showed initial good crabgrass control but proved to be ineffective later as shown by July and August ratings. A single application of HOE A2501 at 0.14 or 0.28 kg/ha gave good to excellent crabgrass control with some initial turf discoloration. Split applications of HOE A2501 at 0.14 + 0.14 or 0.28 + 0.28 kg/ha in May 13 and July 11 provided excellent crabgrass control over the entire season. Treatment combinations of benefin plus trifluralin and DCPA plus MSMA plus MCPP plus 2,4-D should be evaluated further on other cool season turfgrasses. UC-77892 and HOE A2501 appear to be extremely promising for crabgrass control in Kentucky bluegrass. Further research with these two new compounds should be directed to finetune the rates, timing, and sequential applications. |
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| Language: | English |
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| See Also: | Other items relating to: 2, 4 - D in Turf |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bhowmik, P. C. 1984. New herbicides for crabgrass control in turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 38:p. 282-288. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1984_vol38.pdf#page=277
Last checked: 07/29/2013
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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