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The Influence of Growth Regulators and Nitrogen on Leafy Spurge (Euphorbia esula) Control with Picloram

Published online by Cambridge University Press:  12 June 2017

Gregg A. Regimbal  and
Alex R. Martin
Gregg A. Regimbal
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
Alex R. Martin
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
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Abstract

The addition of chlorflurenol (methyl 2-chloro-9-hydroxyfluorene-9-carboxylate) at 0.6 kg ai/ha or mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino]phenyl] acetamide} at 0.3 kg ai/ha to picloram (4-amino-3,5,6-tricloropicolinic acid) at 0.3 kg ae/ha increased leafy spurge (Euphorbia esula L. # EPHES) control compared to picloram alone. Application of 84 kg/ha nitrogen in the fall prior to a spring treatment of 0.3 kg/ha picloram decreased the original stand (75%) compared to no nitrogen (18%). In greenhouse experiments, chlorflurenol and mefluidide increased the amount of 14C-picloram absorbed approximately twofold when applied in combination but not when applied independently. Based on 14C-picloram absorbed, chlorflurenol and mefluidide each increased the amount of 14C translocated to the root system, whether applied independently or in combination with picloram. An increase in root bud numbers was observed following an application of 0.6 kg/ha chlorflurenol or nitrogen.

Keywords

ChlorflurenolethephonmefluidideEPHES
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 1 , January 1985 , pp. 109 - 113
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

Literature Cited

1. Baradari, M. R., Haderlie, L. C., and Wilson, R. B. 1980. Chlorflurenol effects on absorption and translocation of dicamba in Canada thistle (Cirsium arvense). Weed Sci. 28:197–200.Google Scholar
2. Carson, A. G. and Bandeen, J. D. 1975. Influence of ethephon absorption and translocation of herbicides in Canada thistle. Can. J. Plant Sci. 55:795–800.CrossRefGoogle Scholar
3. Coupland, R. T., Selleck, G. W., and Alex, J. F. 1955. Distribution of vegetative buds on the underground parts of leafy spurge (Euphorbia esula L.). Can. J. Agric. Sci. 35:76–82.Google Scholar
4. Crafts, A. S. and Crisp, C. E. 1971. Pages 168–264 in Phloem Transport in Plants. W. H. Freeman and Co., San Francisco, CA.Google Scholar
5. Hoagland, D. R. and Arnon, D. I. 1950. The water culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347, 32 pp.Google Scholar
6. Hunter, J. H. and McIntyre, G. I. 1974. Factors affecting the translocation of 2,4-D in leafy spurge. Weed Sci. 22:167–171.Google Scholar
7. Leavitt, F. D. 1976. Control of perennial weeds. Leafy spurge and toadflax. Res. Rep. Can. Weed Comm. West Sect. 2:543–563.Google Scholar
8. McIntyre, G. I. 1972. Developmental studies on Euphorbia esula. The influence of the nitrogen supply on the correlative inhibition of root bud activity. Can. J. Bot. 50:949–956.Google Scholar
9. Messersmith, C. G. and Lym, R. G. 1980. Herbicide and plant growth regulator screening trials on leafy spurge. North Cent. Weed Control Conf. Res. Rep. 37:60–61.Google Scholar
10. Schneider, G. 1972. Morphactins and plant growth regulation, Pages 317–331 in Kaldewey, H. and Vardar, Y., eds. Hormonal Regulation in Plant Growth and Development. Proc. Adv. Study Inst. Izmir 1971. Verlag Chemie, Weinheim.Google Scholar
11. Vore, R. and Alley, H. P. 1980. Leafy spurge, menace to the west. Down Earth 36(3):2–5.Google Scholar