SYMPOSIA PAPER Published: 01 January 1993
STP25133S

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

Source

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.

Author Information

Hall, FR
The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
Thacker, JRM
The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
Downer, RA
The Laboratory for Pest Control Application Technology (LPCAT), The Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
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Details
Developed by Committee: E35
Pages: 191–202
DOI: 10.1520/STP25133S
ISBN-EB: 978-0-8031-5238-0
ISBN-13: 978-0-8031-1888-1