Hostname: page-component-77c89778f8-vsgnj Total loading time: 0 Render date: 2024-07-20T19:09:43.356Z Has data issue: false hasContentIssue false

Identification of Sulfometuron-Resistant Italian Ryegrass (Lolium multiflorum) Selections

Published online by Cambridge University Press:  12 June 2017

James M. Taylor
Affiliation:
Dep. Plant and Soil Sci., Mississippi State Univ., Mississippi State, MS 39762
G. Euel Coats
Affiliation:
Dep. Plant and Soil Sci., Mississippi State Univ., Mississippi State, MS 39762

Abstract

Two sulfometuron-resistant biotypes of Italian ryegrass were identified from rights-of-way of U.S. Highway 49E in Holmes County, MS, and State Highway 14 in Humphreys County, MS. Sulfometuron at 5.2 g ai/ha applied PRE or POST reduced shoot fresh weight of these selections 20% or less at 4 wk after treatment. A susceptible ‘Gulf’ Italian ryegrass was reduced 52% or more in shoot fresh weight by 0.5 g/ha sulfometuron applied PRE or POST The biotype from Highway 49E was reduced 47% or less in shoot fresh weight by 520 g/ha sulfometuron applied PRE or POST.

Type
Research
Copyright
Copyright © 1996 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Anonymous. 1994. 1994 Weed control guidelines for Mississippi. Miss. Agric. and For. Exp. Stn. and Miss. Coop. Ext. Serv. Pub. 1532, 156 p.Google Scholar
2. Coats, G. E., Taylor, J. M., Kelly, S. T., and Helms, R. B. 1994. Highway Vegetation Management Research Report 1994. Miss. Agric. and For. Exp. Stn. Info. Bul. 278.Google Scholar
3. Coats, G. E., Taylor, J. M., Kelly, S. T., and Helms, R. B. 1996. Highway Vegetation Management Research Report 1995. Miss. Agric. and For. Exp. Stn. Info. Bul. 278.Google Scholar
4. Heap, J. and Knight, R. 1982. A population of ryegrass tolerant to the herbicide diclofop methyl. J. Aust. Inst. Agric. Sci. 48:156157.Google Scholar
5. Kendig, J. A. and DeFelice, M. S. 1994. ALS resistant cocklebur (Xanthium strumarium L.). Weed Sci. Soc. Am. Abstr. 34:12.Google Scholar
6. LeBaron, H. M. 1991. Distribution and seriousness of herbicide-resistant weed infestations worldwide. p. 2743 in Casely, J. L., Cussan, G. W., and Atkin, R. K., eds. Herbicide Resistance in Weeds and Crops. Butterworth-Heinemann Ltd., Oxford, England.Google Scholar
7. Mallory-Smith, C. A., Thill, D. C., and Dial, M. J. 1990. Identification of sulfonylurea-resistant prickly lettuce (Lactuca serriola). Weed Technol. 4:163168.Google Scholar
8. Primiani, M. M., Cotterman, J. C., and Saari, L. L. 1990. Resistance of kochia (Kochia scoparia) to sulfonylurea and imidazolinone herbicides. Weed Technol. 4:169172.Google Scholar
9. Saari, L. L., Cotterman, J. C., and Thill, D. C. 1994. Resistance to acetolactate synthase inhibiting herbicides. p. 83139 in Powles, S. B. and Holtum, J.A.M., ed. Herbicide Resistance in Plants. CRC Press, Inc., Boca Raton, FL.Google Scholar
10. Stanger, C. E. and Appleby, A. P. 1989. Italian ryegrass (Lolium multiflorum) accessions tolerant to diclofop. Weed Sci. 37:350352.Google Scholar
11. Thill, D. C., Mallory-Smith, C. A., Saari, L. L., Cotterman, J. C., Primiani, M. M., and Saladini, J. L. 1991. Sulfonylurea herbicide resistant weeds: Discovery, distribution, biology, mechanism, and management. p. 115128 in Caseley, J. L., ed. Herbicide Resistance in Weeds and Crops. Butterworth-Heinemann Ltd., Oxford, England.Google Scholar