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Triallate Mobility in Soils

Published online by Cambridge University Press:  12 June 2017

G. B. Beestman  and
J. M. Deming
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Abstract

Laboratory studies were conducted to measure the relative volatility of triallate [S-(2,3,3-trichloroallyl) diisopropylthiocarbamate] from soils and to determine the effect of surfactants on triallate mobility. Significant volatilization occurred from continuously moist soils under constant air exposure but triallate did not volatilize more rapidly than herbicides which do not respond to incorporation. Volatilization rates from Ray silt soil fell in the order of propachlor (2-chloro-N-isopropylacetanilide) > triallate > alachlor [2-chloro-2′, 6′-diethyl-N-(methoxymethyl)acetanilide] and from Drummer silty clay loam were propachlor > alachlor > triallate. In suspension studies soils reversibly adsorbed 93 to 98% of the triallate in aqueous solution. With soil at field moisture capacity, the concentration of triallate in soil solution was 13 ppbw without surfactant and 14 ppbw with 3 parts emulsifier blend to 1 part of triallate (w/w). With this level of emulsifier 92% of triallate applied to the soil surface remained in the upper 3 cm of soil following a 15.2-cm simulated rainfall. Without surfactant 99% remained in the upper 3 cm of soil. Lower triallate mobility in moist soils observed in this study coupled with the strong dependence of triallate bioactivity as reported by others strongly suggests that deactivation by dry surface soils rather than volatility is primarily responsible for the triallate response to incorporation.

Type
Research Article
Information
Weed Science , Volume 24 , Issue 6 , November 1976 , pp. 541 - 544
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. Ashford, R. 1975. Triallate granule spacing effect on oat. Weed Sci. 23:470–472.CrossRefGoogle Scholar
2. Banting, J.D. 1967. Factors affecting the activity of di-allate and tri-allate. Weed Res. 7:302–315.Google Scholar
3. Beestman, G.B. and Deming, J.M. 1974. Dissipation of acetanilide herbicides from soils. Agron. J. 66:308–311.Google Scholar
4. Evans, D.M. 1970. The performance of tri-allate in granular form for control of Avena spp. and Alopecurus myosuroides . Proc. 10th Brit Weed Control Conf. 10:842–848.Google Scholar
5. Friesen, H.A., Banting, J.D., and Walker, D.R. 1962. The effect of placement and concentration of 2,3-DCDT on the selective control of wild oats in wheat. Can. J. Plant Sci. 42:91–104.Google Scholar
6. Grover, R. 1974. Adsorption and desorption of trifluralin, and diallate by various adsorbents. Weed Sci. 22:405–408.Google Scholar
7. Holroyd, J. 1968. Tri-allate granules for the postemergence control of Avena fatua in winter and spring cereals. Proc. 9th. Brit. Weed Control Conf. 9:68–73.Google Scholar
8. Khan, S.U. 1973. Interaction of S-2,3–3-trichloroallyl-N,N-diisopropylthiocarbamate (triallate) with montmorillonite. J. Environ. Quality. 2:415–417.Google Scholar
9. McKercher, R.B., Ashford, R., and Morgan, R.E. 1975. Effects of triallate on wild oat grown in a growth chamber. Weed Sci. 23:283–285.Google Scholar
10. Miller, S.D. and Nalewaja, J.D. 1975. Postemergence application of triallate for wild oat control. Weed Sci. 23:137–141.CrossRefGoogle Scholar
11. Molberg, E.S., Friesen, H.A., McCurdy, E.V., and Dryden, R.D. 1964. Placement of di-allate and tri-allate for control of wild oats in wheat. Can. J. Plant Sci. 44:351–357.Google Scholar
12. Smith, A.E. 1969. Factors affecting the loss of tri-allate from soils. Weed Res. 9:306–313.Google Scholar
13. Smith, A.E. 1970. Degradation, adsorption, and volatility of diallate and tri-allate in prairie soils. Weed Res. 10:331–339.Google Scholar