SYMPOSIA PAPER Published: 01 January 1986

Effect of Droplet and Formulation Parameters on Pest Control Efficiency


The effect of droplet density and toxicant concentrations on the mortality and behavior of two-spotted spider mites was evaluated in a laboratory study. Residues of fenvalerate and cyhexatin under certain droplet densities resulted in an increase in oviposition. A formulation of permethrin (encapsulated) was found to have the same toxicity as the standard formulation to both apple aphid and Japanese beetle. However, the encapsulated formulation resulted in a loss of hyperactivity and repellancy shown by the standard formulation of permethrin.

Author Information

Hall, FR
Laboratory for Pest Control Application Technology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, OH
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Developed by Committee: E35
Pages: 23–28
DOI: 10.1520/STP18355S
ISBN-EB: 978-0-8031-4980-9
ISBN-13: 978-0-8031-0481-5