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The Movement and Persistence of Dicamba in Soil

Published online by Cambridge University Press:  12 June 2017

H. A. Friesen
H. A. Friesen*
Affiliation:
Crop Management and Soils Section, Experimental Farm, Lacombe, Alberta
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Abstract

Dicamba (dimethylamine salt of 2-methoxy-3,6-dichlorobenzoic acid) followed slightly behind the forward penetration of added water in both loam and sandy loam soils. Dicamba persisted longer than 2,4-D butyl ester in autoclaved and not-autoclaved loam and sandy loam soils. Tartary buckwheat, Fagopyrum tataricum (L.) Gaertn. planted at intervals in the autoclaved soils showed no injury from the 2,4-D at 16 oz/A after 4 weeks but was completely killed by dicamba at 8 oz/A after 12 weeks of incubation. In the not-autoclaved soils there was no visible effect on the buckwheat plants from 2,4-D after 2 weeks but nearly all of the plants were killed by dicamba after 12 weeks of incubation. Oxygen consumption in the loam soil was greatly reduced by dicamba at concentrations of 10,000 ppm or higher. Similar concentrations of 2,4-D butyl ester had only a slight and sometimes no effect on oxygen uptake. These concentrations are well in excess of those suggested for selective weed control in grain crops.

Type
Research Article
Information
Weeds , Volume 13 , Issue 1 , January 1965 , pp. 30 - 33
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

1. Chandra, Purna, Furtick, W. R., and Bollen, W. B. 1960. The effects of four herbicides on microorganisms in nine Oregon soils. Weeds 8:589–598.Google Scholar
2. Crafts, A. S. 1961. The chemistry and mode of action of herbicides. p 151–160. Inter-science Publishers Inc. New York, N.Y. Google Scholar
3. Friesen, H. A. 1962. Green smartweed, Polygonum scabrum, control in Eagle oats with various herbicides. Res. Report Nat'l. Weed Committee (Western Canada Section) 9:98–99.Google Scholar
4. Keys, C. H. 1962. Comparison of Banvel compounds for control of wild buckwheat, Polygonum convolvulus . Res. Report, Nat'l. Weed Committee (Western Canada Section) 9:80–81.Google Scholar
5. Kratochvil, D. E. 1951. Determination of the effect of several herbicides on soil microorganisms. Weeds 1:25–31.Google Scholar
6. Molberg, E. S. 1961. Fall spraying for Canada thistle Cirsium arvense . Res. Report, Nat'l. Weed Committee (Western Canada Section) p. 18.Google Scholar
7. Umbreit, W. W., Burris, R. H., and Stauffer, J. F. 1957. Manometric techniques. Burgess Publishing Company, Minneapolis, Minn. Google Scholar
8. VandenBorn, W. H. 1961. Response of Tartary buckwheat growing in wheat to treatment with standard and low-volatile esters of 2,4-D, singly or in combination, Banvel D, Banvel T and Carbyne. Res. Report, Nat'l. Weed Committee (Western Canada Section) 8:93–94.Google Scholar
9. Whiteside, Jean S. and Alexander, M. 1960. Measurement of microbiological effects of herbicides. Weeds 8:204–213.Google Scholar