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Persistence of Several Controlled Release Formulations of Trifluralin in Greenhouse and Field

Published online by Cambridge University Press:  12 June 2017

C. B. Coffman  and
W. A. Gentner
C. B. Coffman
Affiliation:
Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric, Weed Sci. Lab., Beltsville, MD 20705
W. A. Gentner
Affiliation:
Agric. Res., Sci. Ed. Admin., U.S. Dep. Agric, Weed Sci. Lab., Beltsville, MD 20705
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Abstract

Three microcapsule formulations, two starch xanthate formulations, and one commercial formulation of trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) were evaluated in the greenhouse and field for their relative herbicidal efficacy and persistence. Biological assays with Italian ryegrass (Lolium multiflorum Lam.) revealed significant differences among the formulations in phytotoxicity and persistence. The commercial formulation of trifluralin was generally more phytotoxic than the others to Italian ryegrass sown the week of herbicide application. The two starch xanthate formulations and one microcapsule formulation of trifluralin were generally more phytotoxic and more persistent than the commercial formulation to Italian ryegrass sown from 1 through 19 weeks after herbicide application.

Keywords

Slow releasestarch xanthatemicrocapsule
Type
Research Article
Information
Weed Science , Volume 28 , Issue 1 , January 1980 , pp. 21 - 23
Copyright
Copyright © 1980 by the Weed Science Society of America 

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References

Literature Cited

1. Gentner, W. A. 1973. Yellow nutsedge control with MBR-8251. Weed Sci. 21:122–124.CrossRefGoogle Scholar
2. Gentner, W. A. and Danielson, L. L. 1976. The influence of microencapsulation on the herbicidal performance of chlorpropham. Pages 7.26–7.32 in Proc. 1976 Controlled Release Symposium. Univ. of Akron, Akron, Ohio.Google Scholar
3. Kearney, P. C. 1977. A challenge for controlled release pesticide technology. Pages 30–36 in Scher, H. B., ed. Controlled Release Pesticides. ACS Symposium Series 53. Washington, D.C. Google Scholar
4. Kennedy, J. M., and Talbert, R. E. 1977. Comparative persistence of dinitroaniline type herbicides on the soil surface. Weed Sci. 25:373–381.Google Scholar
5. Parochetti, J. V. and Dec, G. W. Jr. 1978. Photodecomposition of eleven dinitroaniline herbicides. Weed Sci. 26:153–156.CrossRefGoogle Scholar
6. Savage, K. E. 1978. Persistence of several dinitroaniline herbicides as affected by soil moisture. Weed Sci. 26:465–471.Google Scholar
7. Schreiber, M. M., Shasha, B. S., Ross, M. A., Orwick, P. L., and Edgecomb, D. W. Jr. 1978. Efficacy and rate of release of EPTC and butylate from starch encapsulated formulations under greenhouse conditions. Weed Sci. 26:679–686.Google Scholar
8. Shasha, B. 1978. Methods for testing and factors affecting rate of release of encapsulated products prepared via starch xanthate. Pages 2.31–2.41 in Proc. 5th Int. Symposium on Controlled Release of Bioactive Materials. Univ. of Akron, Akron, Ohio.Google Scholar
9. Steel, R. G. D. and Torrie, J. H. 1960. The principles and procedures of statistics. McGraw-Hill, New York. 481 pp.Google Scholar
10. Turner, B. C., Glotfelty, D. E., Taylor, A. W., and Watson, D. R. 1978. Volatilization of microencapsulated and conventionally applied chlorpropham in the field. Agron. J. 70:933–937.Google Scholar