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Factors Affecting Thiocarbamate Injury to Corn I. Temperature and Soil Moisture

Published online by Cambridge University Press:  12 June 2017

G. W. Burt
Affiliation:
Agron. Dep., Univ. Maryland, College Park, MD 20742
A. O. Akinsorotan
Affiliation:
Agron. Dep., Univ. Maryland, College Park, MD 20742

Abstract

Corn (Zea mays L.) was grown in EPTC-(S-ethyl dipropylthiocarbamate) and butylate-(S-ethyl diisobutylthiocarbamate) treated soil at 33 and 15% moisture in growth chambers at 30 and 20 C. EPTC (6 and 18 ppm) and butylate (19 and 50 ppm) reduced corn growth more at 30 than at 20 C. The days before emergence of the corn coleoptile were the most critical time for thiocarbamate injury. When plants were grown at 30 C before emergence more injury occurred at 33% soil moisture than at 15% except with butylate at 19 ppm. At 20 C, however, plants grew as tall or taller at 33% soil moisture than at 15% except for butylate at 19 ppm. Addition of R-25788 (N,N-diallyl-2,2-dichloroacetamide) to EPTC and butylate increased by about 10 times the amount of herbicide required to injure corn. With R-25788 the toxicity of these two herbicides was not influenced greatly by either temperature or soil moisture.

Type
Research Article
Copyright
Copyright © 1976 by the Weed Science Society of America 

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References

Literature Cited

1. Burt, G.W. 1974. Toluidine and thiocarbamate toxicity to johnsongrass rhizomes. Weed Sci. 22:188191.CrossRefGoogle Scholar
2. Chang, F.Y., Bandeen, J.B., and Stephenson, G.R. 1972. A selective antidote for prevention of EPTC injury in corn. Can. J. Plant. Sci. 52:707714.Google Scholar
3. Chang, F.Y., Stephenson, G.R., and Bandeen, J.B. 1973. Comparative effects of three EPTC antidotes. Weed Sci. 21:292295.Google Scholar
4. Chang, F.Y., Stephenson, G.R., and Bandeen, J.B. 1973. N,N-diallyldichloroacetamide (R-25788) as an antidote for EPTC and other herbicides in corn. Weed Res. 13:399406.Google Scholar
5. Fang, S.C., Theisen, P., and Freed, V.H. 1961. Effects of water evaporation, temperature and rates of application on the retention of ethyl-N,N-di-n-propylthiocarbamate in various soils. Weeds 9:569574.Google Scholar
6. Gray, R.A. and Weierich, A.J. 1965. Factors affecting the vapor loss of EPTC from soils. Weeds 13:141147.Google Scholar
7. Hummel, J.W. and Beste, C.E. 1974. An economical under hood laboratory sprayer. Abstr. Weed Sci. Soc. Amer. No. 141.Google Scholar
8. Roeth, F.W. 1973. Johnsongrass control in corn with soil incorporated herbicides. Weed Sci. 21:474476.Google Scholar
9. Wright, T.H. and Rieck, C.E. 1973. Factors affecting butylate injury to corn. Weed Sci. 22:8385.Google Scholar