Hostname: page-component-848d4c4894-wzw2p Total loading time: 0 Render date: 2024-05-09T11:33:48.634Z Has data issue: false hasContentIssue false

Influence of Fonofos on the Distribution and Metabolism of 14C-Terbacil in Peppermint

Published online by Cambridge University Press:  12 June 2017

Andre J. Weierich
Affiliation:
Dep. of Agron. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Zeldon A. Nelson
Affiliation:
Dep. of Agron. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Arnold P. Appleby
Affiliation:
Dep. of Agron. Crop Sci., Oregon State Univ., Corvallis, OR 97331

Abstract

When the insecticide fonofos (O-ethyl-S-phenylethylphosphonodithioate) was added to a nutrient solution containing 14C-terbacil (3-tert-butyl-5-chloro-6-methyluracil), movement of total radioactivity into leaves of peppermint (Mentha piperita L. cv. ‘Todd's Mitchum’) during a 3-day treatment period approximately doubled. In addition, a higher percentage of this total radioactivity was identified as intact terbacil. Total radioactivity in the leaves was not significantly increased when terbacil was added to 14C-fonofos in nutrient solution. Studies also were conducted to measure the effect of fonofos upon the rate of terbacil metabolism in peppermint. Peppermint plants were treated for 3 days with nutrient solution containing 14C-terbacil alone or 14C-terbacil plus fonofos. The percentage of total radioactivity which remained as intact terbacil at the end of the treatment period was five times as high in plants treated with the combination as in those treated with terbacil alone. The relative rate of degradation during the succeeding 11 days was approximately the same in plants subjected to the two treatments. These results could account for damage to peppermint from closely timed applications of fonofos and terbacil in the field.

Type
Research Article
Copyright
Copyright © 1977 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Ashton, F.M. and Crafts, A.S. 1973. Mode of Action of Herbicides. Interscience Publishers, New York, N.Y. 504 pp.Google Scholar
2. Barrentine, J.L. and Warren, G.F. 1970. Selective action of terbacil on peppermint and ivyleaf morningglory. Weed Sci. 18:373377.Google Scholar
3. Bowling, C.C. and Hudgins, H.R. 1966. The effects of insecticides on selectivity of propanil on rice. Weeds 14:9495.CrossRefGoogle Scholar
4. Chang, Fu-Yan, Smith, L.W., and Stephenson, G.R. 1971. Insecticide inhibition of herbicide metabolism in leaf tissues. J. Agric. Food Chem. 19:11831186.Google Scholar
5. Frear, D.D. and Still, G.G. 1968. The metabolism of 3,4-dichloropropionanilide in plants. Partial purification and properties of an aryl acylamidase from rice. Phytochemistry 7:913920.Google Scholar
6. Gardiner, J.A., Rhodes, R.C., Adams, J.B. Jr., and Soboczenski, E.J. 1969. Synthesis and studies with 2-14C-labeled bromacil and terbacil. J. Agric. and Food Chem. 17:980986.Google Scholar
7. Hacskaylo, J., Walker, J.K. Jr., and Pires, E.G. 1964. Response of cotton seedlings to combinations of preemergence herbicides and systemic insecticides. Weeds 12:288291.Google Scholar
8. Kobayaski, Y. 1974. Biological Applications of Liquid Scintillation Counting. N.Y. Academic Press. 196 pp.Google Scholar
9. Machlis, L. and Torrey, J.G. 1956. Plants in Action; A Laboratory Manual of Plant Physiology. W.H. Freeman. San Francisco. 282 pp.Google Scholar
10. Matsunaka, S. 1968. Propanil hydrolysis; inhibition in rice plants by insecticides. Science 160:13601361.Google Scholar
11. McReynolds, W.D. Jr. and Putnam, A.R. 1971. The influence of added pesticides and their carrier solvents on chloroxuron toxicity to onions. Weed Sci. Soc. Amer. Abstr. No. 169.Google Scholar
12. Nelson, Z.A., Appleby, A.P., and Berry, R.E. 1974. Terbacil—insecticide interactions in peppermint. Weed Sci. Soc. Amer. Abstr. p. 86.Google Scholar
13. Pease, H.L. 1968. Determination of terbacil residues using microcoulometric gas chromatography. J. Agric. Food Chem. 16:5456.Google Scholar
14. Rhodes, R.C., Reiser, R.W., Gardiner, J.A., and Sherman, H. 1969. Identification of the metabolites of terbacil in dog urine. J. Agric. and Food Chem. 17:974979.Google Scholar
15. Russ, O.G. and Ten Eyck, G.R. 1971. Interaction of di-syston and herbicides used for weed control in grain sorghum. Proc. North Cent. Weed Control Conf. 26:57.Google Scholar
16. Yih, R.Y., McRae, D.H., and Wilson, H.F. 1968. Mechanism of selective action of 3′,4′-dichloropropionanilide. Plant Physiol 43:12911296.Google Scholar