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Absorption, Translocation, and Toxicity of 2,4,5-T in Creosotebush

Published online by Cambridge University Press:  12 June 2017

Ervin M. Schmutz
Ervin M. Schmutz*
Affiliation:
Department of Watershed Management, University of Arizona, Tucson 85721
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Abstract

Foliar-spray and radioisotope herbicidal studies were conducted near Tucson, Arizona, to study factors influencing absorption, translocation and toxicity of (2,4,5-trichlorophenoxy)acetic acid (2,4,5-T) in creosotebush [Larrea tridentata (DC.)Cov.]. Maximum absorption and translocation of 14C-labeled 2,4,5-T occurred approximately 30 days after initiation of effective summer rains and coincided with maximum total killing of creosotebush. This occurred during the full-flowering to mid-fruiting stage of phenological development, overlapped the period of old leaf drop, and was due in part to the generally greater basipetal translocation of radioactive 2,4,5-T from old leaves, flowers, fruits, and young bark than from young leaves. Translocation of radioactive 2,4,5-T was relatively slow, 1 to 5 cm per hour, and basipetal movement ceased after 18 to 24 hr, following which the 2,4,5-T largely disappeared from the vascular tissues of the stem. Absorption of 2,4,5-T by the leaves was low during dormancy and may have limited herbicidal effects during this period, but it was not a factor during the season of high susceptibility.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 5 , September 1971 , pp. 510 - 516
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Ashby, E. 1932. Transpiratory organs of Larrea tridentata and their ecological significance. Ecology 13:182–188.Google Scholar
2. Basler, E., Todd, G. W., and Meyer, R. E. 1961. Effects of moisture stress on absorption, translocation and distribution of 2,4-D acid in bean plants. Plant Physiol. 36:573–576.CrossRefGoogle Scholar
3. Briggs, L. J. and Shantz, H. L. 1912. The wilting coefficient and its indirect determination. Bot. Gaz. 53:25–37.CrossRefGoogle Scholar
4. Clor, M. A., Crafts, A. S., and Yamaguchi, S. 1962. I. Effects of high humidity on translocation of foliar-applied labeled compounds in plants. Plant Physiol. 37:609–617.CrossRefGoogle ScholarPubMed
5. Clor, M. A., Crafts, A. S., and Yamaguchi, S. 1964. Translocation of C14-labeled compounds in cotton and oaks. Weeds 12:194–200.Google Scholar
6. Crafts, A. S. 1953. Herbicides–their absorption and translocation. Agr. & Food Chem. 1:51–55.CrossRefGoogle Scholar
7. Crafts, A. S. 1956. Translocation of herbicides. I. The mechanism of translocation: Methods of study with C14-labeled 2,4-D. Hilgardia 26:287–334.Google Scholar
8. Crafts, A. S. 1959. Further studies on comparative mobility of labeled herbicides. Plant Physiol. 34:613–620.Google Scholar
9. Edgerton, L. J. and Hoffman, M. B. 1961. Flourine substitution affects decarboxylation of 2,4-dichlorophenoxyacetic acid in apple. Science 134:341–342.CrossRefGoogle Scholar
10. Fang, S. C., Jaworski, E. G., Logan, A. V., Freed, V. H., and Butts, J. S. 1951. The absorption of radioactive 2,4-dichlorophenoxyacetic acid and the translocation of C14 by bean plants. Arch. Biochem. & Biophys. 32:249–255.Google Scholar
11. Fites, R. C., Slife, F. W., and Hanson, J. B. 1964. Translocation and metabolism of radioactive 2,4-D in jimsonweed. Weeds 12:180–183.Google Scholar
12. Hauser, E. W. 1955. Absorption of 2,4-dichlorophenoxyacetic acid by soybean and corn plants. Agron. J. 47:32–36.CrossRefGoogle Scholar
13. Hay, J. R. 1956. Translocation of herbicides in Marabu. II. Translocation of 2,4-dichlorophenoxyacetic acid following foliage application. Weeds 4:349–356.CrossRefGoogle Scholar
14. Hay, J. R. and Thimann, K. V. 1956. The fate of 2,4-dichlorophenoxyacetic acid in bean seedlings. II. Translocation. Plant Physiol. 31:446–451.Google Scholar
15. Holley, R. W., Boyle, F. B., and Hand, D. B. 1950. Studies of the fate of radioactive 2,4-dichlorophenoxyacetic acid in bean plants. Arch. Biochem. 27:143–148.Google Scholar
16. Leonard, O. A. and Crafts, A. S. 1956. Translocation of herbicides. III. Uptake and distribution of radioactive 2,4-D by brush species. Hilgardia 26:366–415.Google Scholar
17. Leonard, O. A., Glenn, R. K., and Bayer, D. E. 1965. Studies on the cut-surface method. I. Translocation in blue oak and madrone. Weeds 13:346–351.Google Scholar
18. Mallery, T. D. 1935. Changes in the osmotic value of expressed sap of leaves and small twigs of Larrea tridentata as influenced by environmental conditions. Ecol. Monogr. 5:1–35.Google Scholar
19. Merkle, M. G. and Davis, F. S. 1967. Effect of moisture stress on absorption and movement of picloram and 2,4,5-T in beans. Weeds 15:10–12.CrossRefGoogle Scholar
20. Morton, H. L. 1966. Influence of temperature and humidity on foliar absorption, translocation, and metabolism of 2,4,5-T by mesquite seedlings. Weeds 14:136–141.Google Scholar
21. Mueller, L. E. and Loomis, W. E. 1954. The submicroscopic structure of plant surfaces. Amer. J. Bot. 41:593–600.Google Scholar
22. Muzik, T. J. and Mauldin, W. G. 1964. Influence of environment on the response of plants to herbicides. Weeds 12:142–145.CrossRefGoogle Scholar
23. Nichol, A. A. 1952. The natural vegetation of Arizona, p. 187–230. In Arizona Agr. Exp. Sta. Tech. Bull. 127.Google Scholar
24. Pallas, J. E. 1960. Effects of temperature and humidity on foliar absorption and translocation of 2,4-dichlorophenoxyacetic acid and benzoic acid. Plant Physiol. 35:575–580.Google Scholar
25. Pallas, J. E. and Williams, G. G. 1962. Foliar absorption and translocation of P32 and 2,4-D acid as affected by soil moisture tension. Bot. Gaz. 123:175–180.Google Scholar
26. Schieferstein, R. H. and Loomis, W. E. 1956. Wax deposits on leaf surfaces. Plant Physiol. 31:240–247.CrossRefGoogle ScholarPubMed
27. Schmutz, E. M. 1967. Chemical control of three Chihuahuan Desert shrubs. Weeds 15:62–67.Google Scholar
28. Schmutz, E. M., Tschirley, F. H., and Turner, R. M. 1957. Chemical control of three desert shrubs. Prog. Agr. in Arizona 9(1): 14.Google Scholar
29. Sellers, W. D. 1960. Arizona climate. Univ. Arizona Inst. Atmos. Phys., Univ. Arizona Press, Tucson. 60 p.Google Scholar
30. Van Overbeek, J. 1956. Absorption and translocation of growth regulators. Annu. Rev. Plant Physiol. 7:355–372.CrossRefGoogle Scholar
31. Weintraub, R. L., Brown, J. W., Fields, M., and Rohan, J. 1952. Metabolism of 2,4-dichlorophenoxyacetic acid. I. C14O2 production by bean plants treated with labeled 2,4-dichlorophenoxyacetic acid. Plant Physiol. 27:293–301.CrossRefGoogle Scholar
32. Weintraub, R. L., Yeatman, J. N., Brown, J. W., Throne, J. A., Skoss, J. D., and Conover, J. R. 1954. Studies on entry of 2,4-D into leaves. Proc. Northeast Weed Contr. Conf. 8:5–9.Google Scholar
33. Yamaguchi, S. and Crafts, A. S. 1959. Comparative studies with labeled herbicides on woody plants. Hilgardia 29:171–204.Google Scholar
34. Yang, T. W. and Lowe, C. H. Jr. 1956. Correlation of major vegetation climaxes with soil characteristics in the Sonoran Desert. Science 123:542.Google Scholar