Controlled Release Temephos: Laboratory and Field Evaluations

  • Thomas J. Quick
  • Nathan F. Cardarelli
  • Ruben J. Ellin
  • Larry R. Sherman


The development of controlled-release pesticides based upon the monolithic dispersion of a chemical agent in a polymer has been described in detail elsewhere.1 Temephos, 0,0,0’,0’-tetramethyl-0,0-thiodi-p-phenylene phosphorothioate (C.A. Registry #3383–96–8), was incorporated in elastomeric matrices and a diffusion-dissolution type release mechanism was established.2 Although a continuous release of the agent occurred for over three years, commercialization was not undertaken. Later it was discovered that long-term toxicant release from a plastic matrix could be achieved through a leaching process keyed to the use of a water-soluble additive whose emission led to the development of the necessary porosity in the matrix.3 The processing costs for such materials are relatively inexpensive, and consequently a number of controlled-release temephos materials are now commercially available. Unlike conventional formulations which are limited to solutions, emulsions, granules, and wettable powders, controlled-release plastic dispensers can be manufactured in any geometry conducive to the particular environment to be treated.


Unpublished Report Wettable Powder Plastic Matrix Lease Chemical Catch Basin 
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  1. 1.
    N.F. Cardarelli, in: “Controlled Release Pesticide Formulations,” CRC Press, (1976). p. 210.Google Scholar
  2. 2.
    N.F. Cardarelli, U.S. Patent 3590119 (1971)Google Scholar
  3. 3.
    N.F. Cardarelli, U.S. Patent 4116111 (1979).Google Scholar
  4. 4.
    N.R. Cardarelli, Mosquito News 38: 328–333 (1978).Google Scholar
  5. T.L. Park, Correspondence to Environmental Chemicals, Inc., Marion County Health Department, Salem, OR, Jan 12 (1979).Google Scholar
  6. 6.
    J. Bowerman, Correspondence to Environmental Chemicals Inc., Sunriver Properties Inc., Sunriver, OR, July 13 (1978).Google Scholar
  7. J.W. Oliver, Correspondence to Environmental Chemicals, Inc. Department of Health, Portsmount, OH, Jan 17 (1979).Google Scholar
  8. 8.
    K.M. Mackowiak, Correspondence to Environmental Chemicals, Inc., Elkhart County Health Dept., Elkhart, IN, Oct 23 (1978).Google Scholar
  9. 9.
    J.B. Jackson, A Field Evaluation of ECOPRO 1707F Larvicide in Catch Basins, Lyndhurst, OH, August-September, Unpublished Report, Cuyahoga County Board of Health, OH, p. 2 (1978).Google Scholar
  10. 10.
    R.F. Schmidt, Preliminary Report on the Effectiveness of ECOPRO 1707F, Unpublished Report, Middlesex County Mosquito Extermination Commission, Edison, NJ, Jan 6, p. 4 (1979).Google Scholar
  11. 11.
    E. Murray, Correspondence to Environmental Chemicals, Inc., West Millard County Mosquito Abatement Committee, Sept. 23 (1978).Google Scholar
  12. 12.
    L. Strommer, Correspondence to Environmental Chemicals, Inc., Department of Health, Hastings, NB, Aug. 28 (1978).Google Scholar
  13. 13.
    Anon, Field Test of ECOPRO 1707F, A Sustained Controlled-Release Chemical, Unpublished Report, Des Plaines Valley Mosquito Abatement District, Lyons, IL, p. 1 (1978).Google Scholar
  14. 14.
    R. Himel, Field Test Results of ECOPRO 1707F Mosquito Larvicide, Unpublished Report, Environmental Chemicals Inc., Barrington, IL, p. 7 (1979).Google Scholar
  15. 15.
    D.P. Ritchey, ECOPRO 1707F Evaluation, Unpublished Report, Dept. Health, Columbus, OH, Jan 31, p. 1 (1979).Google Scholar
  16. 16.
    Anon, Preliminary Results of a Trial with Controlled and Slow-Release Larvicide Formulations Against A. B. balapacensis in the Gem-Mining Pits in South-East Thailand, Unpub. Rep., WHO Regional Seminar on Anti-Malaria Operations, THA MPD 001, Trad, Thailand, p. 18 (1977).Google Scholar
  17. 17.
    C. Kopitke, An Evaluation of the Effectiveness of a Slow Release Larvicide in Controlling Mosquito Populations and a Survey of Macro-Invertibrates Inhabiting the Test Pools, Unpublished Report to Environmental Chemicals Inc., p. 19 (1978).Google Scholar
  18. 18.
    C. Dancy, Unpublished Report, Microchem Inc., West Chicago, IL, p. 2 (1978).Google Scholar
  19. 19.
    K.H. Wagsfaff, Correspondence to Environmental Chemicals, Inc., Salt Lake City Mosquito Abatement District, Midvale, UT, July 11 (1978).Google Scholar
  20. 20.
    L.G. Terracina, Unpublished Report, Chambers County Mosquito Control, TX, July 3, p. 2 (1978).Google Scholar
  21. 21.
    K.C. Schuyler, Correspondence to Environmental Chemicals, Inc., Pennsylvania Dept. of Environmental Resources, Williamsport, PA, July 10 (1978).Google Scholar
  22. 22.
    G.A. Janes and S.B. Holliday, Evaluation of Environmental Chemicals Inc., ECOPRO 1700 Controlled Release Larvicide, Unpublished Report Creative Biology Laboratory, Barberton, OH, p. 3 (1978).Google Scholar

Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • Thomas J. Quick
    • 1
  • Nathan F. Cardarelli
    • 1
  • Ruben J. Ellin
    • 2
  • Larry R. Sherman
    • 2
  1. 1.Environmental Management LaboratoryThe University of AkronAkronUSA
  2. 2.Department of ChemistryThe University of AkronAkronUSA

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