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Accelerated Degradation of Thiocarbamate Herbicides in Soil with Prior Thiocarbamate Herbicide Exposure

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson
Robert G. Wilson*
Affiliation:
Dep. Agron., Univ. of Nebraska Panhandle Stn., Scottsbluff, NE
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Abstract

Laboratory studies were conducted to evaluate the degradation of butylate (S-ethyl diisobutylthiocarbamate), EPTC (S-ethyl dipropylthiocarbamate), cycloate (S-ethyl N-ethylthiocyclohexanecarbamate), and vernolate (S-propyldipropylthiocarbamate) in soil with prior thiocarbamate herbicide exposure. EPTC degradation was accelerated in soil which had previously been treated with butylate, vernolate, or EPTC in 1979, 1980, and 1981. The evolution rate of 14CO2 from 14C-labeled vernolate was increased in soil which had previously been treated with vernolate or EPTC in 1979, 1980, and 1981. Cycloate degradation was not enhanced in soil with prior exposure to butylate, EPTC, or vernolate. Butylate breakdown was enhanced to the greatest extent in soil with previous exposure to butylate.

Keywords

ButylateEPTCcycloatevernolate
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 32 , Issue 2 , March 1984 , pp. 264 - 268
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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