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Frequency of Herbicide Treatments for Summer and Winter Weed Control in Turfgrasses

Published online by Cambridge University Press:  12 June 2017

B. J. Johnson
B. J. Johnson*
Affiliation:
Univ. of Georgia, Georgia Stn., Experiment, GA 30212. Supported by State, Hatch, and other funds allocated to the Georgia Agric. Exp. Stn
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Abstract

Four herbicides were applied in the spring and fall over a 3-yr period to Kentucky bluegrass [Poa pratensis (L.) ‘Common′] in the Mountain Region and bermudagrass [Cynodon dactylon (L.) Pers. ‘Common′] in the Piedmont Region of Georgia at different frequencies of treatments for summer and winter weed control. Large crabgrass [Digitaria sanguinalis (L.) Scop.] was controlled throughout the 3-yr period from spring treatments of bensulide [O,O-diisopropyl phosphorodithioate S-ester with N-(2-mercaptoethyl)benzenesulfonamide] at 11.2 kg/ha and oxadiazon [2-tert-butyl-4-(2,4-dichloro-5-isopropoxyphenyl)-δ2-1,3,4-oxadiazolin-5-one] at 4.5 kg/ha in the first year followed by 5.6 kg/ha for bensulide and 2.3 kg/ha for oxadiazon the following 2 yr. To control large crabgrass with benefin (N- butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine) it was necessary to apply 3.4 kg/ha for 2 consecutive yr before rates could be reduced to 1.7 kg/ha. Oxadiazon was the only herbicide that controlled goosegrass [Eleusine indica (L.) Gaertn.] completely. Control was excellent throughout the 3-yr period when oxadiazon was applied at full rate in the spring of the first year with no additional treatments during the following 2 yr. Optimum control of winter weeds was obtained throughout the 3-yr period when herbicides were applied at full rates for the spring and fall treatments the first year followed by one-half rates at similar dates the following 2 yr. Bensulide treatments increased cover of corn speedwell (Veronica arvensis L.) and hop clover (Trifolium agrarium L.); DCPA (dimethyl tetrachloroterephthalate) and benefin increased spur weed (Soliva spp.) and wild parsnip (Pastinaca sativa L.); and oxadiazon increased wild parsnip and thymeleaf sandwort (Arenaria serpyllifolia L.).

Keywords

Digitaria sanguinalisEleusine indicaPoa annua.
Type
Research Article
Information
Weed Science , Volume 30 , Issue 1 , January 1982 , pp. 116 - 124
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

Literature Cited

1. Barrett, L. H. and Jagschitz, J. A. 1975. Control of crabgrass and goosegrass with preemergence chemicals in turfgrass. Proc. Northeast. Weed Sci. Soc. 29:359–364.Google Scholar
2. Bingham, S. W. and Schmidt, R. E. 1964. Crabgrass control in turf. Proc. South. Weed Conf. 17:113–122.Google Scholar
3. Bingham, S. W., Schmidt, R. E., and Curry, C. K. 1969. Annual bluegrass control in overseeded bermudagrass putting green turf. Agron. J. 61:908–911.Google Scholar
4. Burt, E. O. and Gerhold, N. R. 1970. Poa annua control in bermuda turf with Kerb. Proc. South. Weed Sci. Soc. 23:122–126.Google Scholar
5. Coville, C. M. and Jagschitz, J. A. 1976. Herbicides for preemergence crabgrass and goosegrass control in turfgrass –1975. Proc. Northeast. Weed Sci. Soc. 30:367–371.Google Scholar
6. Engel, R. E., Bussey, C. W., and Ilnicki, R. D. 1973. Control of crabgrass Digitaria spp. and goosegrass Eleusine indica in turf with experimental preemergence herbicides. Proc. Northeast. Weed Sci. Soc. 27:324–330.Google Scholar
7. Engel, R. E., Bussey, C. W., and Catron, P. 1975. Crabgrass and goosegrass control in turfgrass with several preemergence herbicides. Proc. Northeast. Weed Sci. Soc. 29:369–374.Google Scholar
8. Goss, R. L. 1964. Preemergence control of annual bluegrass (Poa annua L.). Agron. J. 56:479–481.Google Scholar
9. Hesseltine, B. B. and Jagschitz, J. A. 1978. Control of crabgrass with pre- and postemergence herbicides in turfgrass. Proc. Northeast. Weed Sci. Soc. 32:308–314.Google Scholar
10. Horn, G. C., Smith, G. S., Ayer, M. T., Rehberg, B. E., Briggs, R., and Reid, L. 1972. Farewell to Poa annua? Golf Superintendent 40(8):11–16.Google Scholar
11. Jagschitz, J. A. 1969. Fall and spring use of preemergent crabgrass control with chemicals in turfgrasses. Proc. Northeast. Weed Control Conf. 23:398–404.Google Scholar
12. Jagschitz, J. A. 1970. Chemical control of Poa annua L. in turfgrass and the effect of various chemicals on seed production. Proc. Northeast. Weed Control Conf. 24:393–400.Google Scholar
13. Jagschitz, J. A. 1972. Preemergence crabgrass and goosegrass control. Proc. Northeast. Weed Sci. Soc. 26:205–210.Google Scholar
14. Johnson, B. J. 1977. Controlling winter annuals with herbicides. Georgia Agric. Exp. Stn. Res. Bull. 206. 35 pp.Google Scholar
15. Johnson, B. J. 1977. Crabgrass and goosegrass control in bermudagrass with herbicides. Georgia Agric. Exp. Stn. Res. Bull. 195. 29 pp.Google Scholar
16. Johnson, B. J. 1979. Influence of herbicide treatments on control and ecology of winter annuals. Georgia Agric. Exp. Stn. Res. Rep. 313. 12 pp.Google Scholar
17. Johnson, B. J. 1980. Herbicides for summer weed control in turfgrasses. Georgia Agric. Exp. Stn. Res. Bull. 256. 23 pp.Google Scholar
18. Watschke, T. L., Wehner, D. J., and Duich, J. M. 1977. Control of smooth crabgrass in Kentucky bluegrass and red fescue using pre- and postemergence herbicides. Proc. Northeast. Weed Sci. Soc. 31:340–343.Google Scholar