STP1183

    Physico-Chemical Properties, In-Flight Evaporation and Spread of Spray Droplets Containing Pesticide Adjuvants

    Published: Jan 1993


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    Abstract

    In-flight evaporation, droplet spread on water sensitive paper, equilibrium surface tension, and dynamic surface tension were measured for each of 12 adjuvants mixed with water. The correlation between the physico-chemical properties and droplet spread was determined. The results indicated that the adjuvants had significant and varied effects upon the parameters that were measured. Speculative rankings were derived for (A) evaporation rates and (B) spreading potentials. The rankings were compared with manufacturer's claims for the adjuvants and the results are discussed in terms of the benefits to be derived from using these products in pesticide applications.

    Keywords:

    Adjuvant, Physico-chemical properties, in-flight evaporation, spread, droplet, Formulation, Pesticide


    Author Information:

    Hall, FR
    Professor and Head, The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio

    Thacker, JRM
    Post-Doctoral Research Associate, The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio

    Downer, RA
    Research Associate, The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio


    Paper ID: STP25133S

    Committee/Subcommittee: E35.22

    DOI: 10.1520/STP25133S


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