Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-17T00:39:33.469Z Has data issue: false hasContentIssue false

Response of Yellow (Cyperus esculentus) and Purple (Cyperus rotundus) Nutsedge to Metolachlor

Published online by Cambridge University Press:  12 June 2017

T. Obrigawitch
Affiliation:
Dep. Plant and Soil Sci., Texas Tech Univ., Lubbock, TX 79409
J. R. Abernathy
Affiliation:
Texas Agric. Exp. Stn., Lubbock, TX 79401
J. R. Gipson
Affiliation:
Dep. Plant and Soil Sci., Texas Tech Univ., Lubbock, TX 79409

Abstract

Two 1-yr field studies were conducted to evaluate preemergence and preplant incorporated treatments of alachlor [2-chloro-2′,6′-diethyl-N-(methoxymethyl)acetanilide], EPTC (S-ethyl dipropylthiocarbamate), fluridone {1-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-4(1H)-pyridinone}, and metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] for the control of yellow nutsedge (Cyperus esculentus L.). Preemergence applications of metolachlor at 2.24, 3.36, and 4.48 kg/ha gave the best control with no significant differences observed among rates of metolachlor. Depth of herbicide incorporation did not result in any significant increase in control. Preplant incorporation of metolachlor at all rates, or fluridone at 0.56 and 0.84 kg/ha provided seasonal control of yellow nutsedge. Translocation of 14C-metolachlor applied to the root or shoot of yellow nutsedge was primarily acropetal with some limited basipetal movement. Application of 14C-metolachlor to the root or shoot of purple nutsedge (Cyperus rotundus L.) resulted in mostly acropetal translocation with little movement of 14C from the treatment site.

Type
Research Article
Copyright
Copyright © 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. Armstrong, T. F., Meggett, W. F., and Penner, D. 1973. Yellow nutsedge control with alachlor. Weed Sci. 21:354357.CrossRefGoogle Scholar
2. Armstrong, T. F., Meggett, W. F., and Penner, D. 1973. Absorption, translocation, and metabolism of alachlor by yellow nutsedge. Weed Sci. 21:357360.CrossRefGoogle Scholar
3. Banks, P. A. and Merkle, M. G. 1979. Field evaluations of the herbicidal effects of fluridone on two soils. Agron. J. 71:759762.CrossRefGoogle Scholar
4. Bell, R. S., Lachman, W. H., Rahn, E. M., and Sweet, R. D. 1962. Life history studies as related to weed control in the northeast. 1. Northern nutgrass. R. I. Agric. Exp. Stn. Bull. No. 364. 33 pp.Google Scholar
5. Bendixen, L. E. 1973. Anatomy and sprouting of yellow nutsedge tubers. Weed Sci. 21:501503.CrossRefGoogle Scholar
6. Berard, D. F., Rainey, D. P., and Lin, C. C. 1978. Absorption, translocation, and metabolism of fluridone in selected crop species. Weed Sci. 26:252254.CrossRefGoogle Scholar
7. Crafts, A. S. and Yamaguchi, S. 1964. The autoradiography of plant materials. Calif. Agric. Exp. Stn. Ext. Serv. Manual 35. 143 pp.Google Scholar
8. Gerber, H. R., Muller, G., and Ebner, L. 1974. CGA-24705, A new grass-killer herbicide. Proc. 12th Br. Weed Conf. 3:787794.Google Scholar
9. Hauser, E. W. 1962. Development of purple nutsedge under field conditions. Weeds 10:209212.Google Scholar
10. Higgins, E. R., Schnappinger, M. G., and Pruss, S.W. 1976, CGA-24705 and atrazine for yellow nutsedge control. Proc. Northeast Weed Sci. Soc. 30:65.Google Scholar
11. Jansen, L. L. 1971. Morphology and photoperiodic responses of yellow nutsedge. Weed Sci. 19:210219.Google Scholar
12. Keeley, P. E., Carter, C. H., and Miller, J. H. 1973. Yellow nutsedge and cotton response to several herbicides. Weed Sci. 21: 327329.Google Scholar
13. Keeley, P. E., and Thullen, R. J. 1974. Yellow nutsedge control with soil incorporated herbicides. Weed Sci. 22:378383.Google Scholar
14. Lewis, W. M., and Worsham, A. D. 1970. The ten worst weeds of field crops. Nutsedge. Crops Soils 22:1416.Google Scholar
15. Parker, C., Holly, K., and Hocombe, S. D. 1969. Herbicides for nutgrass control – Conclusions from ten years of testing at Oxford. PANS 15:5463.Google Scholar
16. Ray, B. and Wilcox, M. 1969. Chemical fallow control of nutsedge. Weed Res. 9:8694.CrossRefGoogle Scholar
17. Rincon, D. J. and Warren, G. F. 1978. Effect of five thiocarbamate herbicides on purple nutsedge (Cyperus rotundus . Weed Sci. 26:127131.CrossRefGoogle Scholar
18. Skipper, H. D., Gossett, B. J., and Smith, G. W. 1976. Field evaluation and soil residual characteristics of CGA-24705 and alachlor. Proc. South. Weed Sci. Soc. 29;418422.Google Scholar
19. Stoller, E. W., Nema, D. P., and Bhan, W. M. 1972. Yellow nutsedge tuber germination and seedling development. Weed Sci. 20: 9397.CrossRefGoogle Scholar
20. U.S.D.A., Agricultural Research Service. 1968. Extent and cost of weed control with herbicides and an evaluation of important weeds, 1965. ARS 34–102. 85 pp.Google Scholar
21. Wax, L. M., Stoller, E. W., Slife, F. W., and Anderson, R. N. 1972. Yellow nutsedge control in soybeans. Weed Sci. 20:194201.CrossRefGoogle Scholar
22. Wills, G. D. and Briscoe, G. A. 1970. Anatomy of purple nutsedge. Weed Sci. 18:631635.Google Scholar