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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Lewis, W. M.;
DiPaola, J. M.;
Bruneau, A. H. |
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| Author Affiliation: | North Carolina State University |
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| Title: | Rooting of Turfgrass Sod Following Preemergence Herbicide Application |
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| Source: | Southern Weed Science Society Proceedings. Vol. 40, January 1987, p. 100. |
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| Publishing Information: | Nashville, TN: Southern Weed Science Society. |
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| Keywords: | TIC Keywords: Cynodon; Eremochloa ophiuroides; Festuca arundinacea; Poa pratensis; Zoysia; Herbicides; Bensulide; Oryzalin; Oxadiazon; Pendimethalin; Rooting
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| Abstract/Contents: | "Four preemergence herbicides were applied below and on four turfgrass sods at transplanting to determine their effects on turf rooting. The herbicides, formulations, and rates were : bensulide (Betasan 7G) 14 kg/ha, oryzalin (Surflan 4AS) 2.2 kg/ha, oxzdiazon (Ronstar 2G) 3.4 kg/ha, and pendimethalin (Pre-M 60DG) 1.7 kg/ha. The turfgrasses included centipedegrass (Eremochloa ophiuroides), tall fescue/Kentucky bluegrass (Festuca arundinacea, Poa pratensis), 'Tifway' bermudagrass (Cynodon dactylon X C. transvaalensis), and 'Meyer' zoysiagrass (Zoysia japonica). The first test was conducted on a sandy clay loam soil and was initiated May 1, 1986. Sod root strength measurements were taken on June 17 (DAT 47). The second test was on a modified soil, somewhat similar to USGA golf green specifications, and was initiated July 2, 1986. Evaluations were made on August 15 (DAT 44). Both tests were irrigated frequently to encourage sod establishment. Sod was laid over expanded metal frames, 30 X 30 cm, that were placed even with the soil and the sod was laid on top of the frames. The effects of the herbicides on root development were determined as the force required to lift the sod from the soil and termed root strength. Rooting depth was measured as the distance from the soil surface to the point of root breakage following each sod pull. Turf quality was rated visually on scale of 1 to 9 with 9 being best and 5 considered minimally acceptable. The turfgrasses had the greatest root strength, similar to the untreated sod, when oxadiazon was applied on top of the transplanted sod. Root strength values declined 22% for bensulide and pendimethalin and 60% for oryazlin. The relative effects of herbicides on root depth and turf quality were oxadiazon > pendimethalin > bensulide > oryzalin. With the exception of oxadiazon, placement of the herbicide below the sod was very detrimental to turf quality and root growth as measured by root strength and root depth. In the first test, root strength and depth was greatest for: centipedegrass and 'Tifway' bermudagrass, intermediate for tall fescue/bluegrass and least for 'Meyer' zoysiagrass. However, the tall fescue/bluegrass sod had the poorest development in the second test. Additional treatments conducted at the same time and location as the second test included: benefin at 3.4 kg/ha, pendimethlalin at 3.4 kg/ha ad prodiamine at 0.6 kg/ha and 1.1 kg/ha. The first three treatments performed similar to pendimethalin at 1.7 kg/ha in the other tests. Preemergence herbicide application of oxadiazon, pendimethalin, bensulide or benefin to newly laid sod of the four turfgrasses evaluated did not adversely affect root development and turf quality. Only oxadiazon could be applied with safety underneath a sod. Centipedegrass, 'Tifway' bermudagrass, and 'Meyer' zoysia were successfully established with the use of three herbicides both in early and mid-summer. Tall fescue/bluegrass sod establishment was only successful in early summer." |
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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):
Lewis, W. M., J. M. DiPaola, and A. H. Bruneau. 1987. Rooting of Turfgrass Sod Following Preemergence Herbicide Application. South. Weed Sci. Soc. Proc. 40:p. 100. |
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MSU catalog number: SB 611 .S6 |
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