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Diclofop – a Selective Herbicide for Italian Ryegrass (Lolium multiflorum) Control in Winter Wheat (Triticum aestivum)

Published online by Cambridge University Press:  12 June 2017

Khosro Khodayari
Affiliation:
Altheimer Laboratory, Dep. Agron., Univ. of Arkansas, Fayetteville, AR 72701
Robert E. Frans
Affiliation:
Altheimer Laboratory, Dep. Agron., Univ. of Arkansas, Fayetteville, AR 72701
Fred C. Collins
Affiliation:
Altheimer Laboratory, Dep. Agron., Univ. of Arkansas, Fayetteville, AR 72701

Abstract

Diclofop [2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acid] was evaluated to determine Italian ryegrass (Lolium multiflorum Lam.) control and effect on yield of winter wheat (Triticum aestivum L.). Diclofop applied at 0.5, 0.75, 1.0, and 1.5 kg/ha postemergence provided excellent control of ryegrass and resulted in significant yield increases of winter wheat. Diclofop was most effective when applied at the two- to three-leaf stage of Italian ryegrass growth. Postemergence applications of diclofop plus bentazon [3-isopropyi-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] gave excellent control of ryegrass and significant increases in wheat yields.

Type
Research Article
Copyright
Copyright © 1983 Weed Science Society of America 

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References

Literature Cited

1. Andersen, R. N. 1976. Response of monocotyledons to HOE-22870 and HOE-23408. Weed Sci. 24:266269.Google Scholar
2. Appleby, A. P., Olson, P. D., and Colbert, D. R. 1976. Winter wheat yield reduction from interference by Italian ryegrass. Agron. J. 68:463466.Google Scholar
3. Baldwin, J. H. and Livingston, D. B. 1976. The control of Avena fatua L. in winter wheat by the use of postemergence herbicides applied at different timings. Br. Crop Prot. Conf. – Weeds. 1:2530.Google Scholar
4. Chow, P.N.P. and Laberge, D. E. 1978. Wild oat herbicide studies. Two physiological and chemical changes in barley and wild oats treated with diclofop-methyl herbicide in relation to plant tolerance. J. Agric. Food Chem. 26:11341137.Google Scholar
5. Frans, R. E., Tollerey, F. E., Paniagua, O., and Lara, R. 1978. Weed control investigation in Bolivian crops, 1977–1978. Centro de Investigacíon Agrícola Tropical (C.I.A.T.) Report No. 2, pp. 4548.Google Scholar
6. King, J. M. and Handley, R. P. 1976. Control of wild oats with HOE-23408 in peas and broad beans. Br. Crop Prot. Conf. – Weeds. 2:419423.Google Scholar
7. Norris, R. F. 1976. Factors modifying postemergence seedling grass control with dalapon or HOE-23408. Proc. West. Soc. Weed Sci. 29:8384.Google Scholar
8. Schweizer, E. E., Swink, J. F., and Heikes, P. E. 1978. Field bindweed (Convolvulus arvensis) control in corn (Zea mays) and sorghum (Sorghum bicolor) with dicamba and 2,4-D. Weed Sci. 26:665668.Google Scholar
9. Shurtleff, J. L. and Buchanan, G. A. 1979. Diclofop and HOE-29152 interactions with five herbicides. Proc. South. Weed Sci. Soc. 32:65.Google Scholar
10. Todd, B. G. and Stobbe, E. H. 1977. Selectivity of diclofop-methyl among wheat, barley, wild oat and green foxtail. Weed Sci. 25:382385.Google Scholar