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Comparative Effects of Three EPTC Antidotes

Published online by Cambridge University Press:  12 June 2017

F. Y. Chang ,
G. R. Stephenson  and
J. D. Bandeen
F. Y. Chang
Affiliation:
Dep. of Environmental Biology; Dep. of Crop Sci., Univ. of Guelph, Guelph, Ontario, Canada
G. R. Stephenson
Affiliation:
Dep. of Environmental Biology; Dep. of Crop Sci., Univ. of Guelph, Guelph, Ontario, Canada
J. D. Bandeen
Affiliation:
Dep. of Environmental Biology; Dep. of Crop Sci., Univ. of Guelph, Guelph, Ontario, Canada
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Abstract

In growth room studies, N,N-diallyl-2,2-dichloroacetamide (hereafter referred to as R-25788) was the most effective of three antidotes for the reduction of EPTC (S-ethyl dipropylthiocarbamate) injury to corn (Zea mays L. ‘United Hybrid 106’). R-25788 reduced EPTC injury to corn as a seed treatment, as an incorporated soil spray, or in nutrient solution in quartz sand nutrient culture. CDAA (N,N-diallyl-2-chloroacetamide) was also an EPTC antidote for corn when applied to the soil or in nutrient solution but was itself toxic to corn when applied as a seed treatment. The antidote 1,8-naphthalic anhydride (hereafter referred to as naphthalic anhydride) was less effective than R-25788 as a seed treatment and was ineffective when applied to the soil. Naphthalic anhydride was the only one of the three antidotes which also reduced EPTC toxicity to green foxtail [Setaria viridis (L.) Beauv.].

Type
Research Article
Information
Weed Science , Volume 21 , Issue 4 , July 1973 , pp. 292 - 295
Copyright
Copyright © 1973 Weed Science Society of America 

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References

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