The Influence of Insecticide Formulation and Droplet Size on the Efficiency of Dengue Vector Control

Wei-Tai Hsia

2008 Vol.24 NO.8

Correspondence Author： Wei-Tai Hsia

Abstract：

The objective of this research is to study the influence of insecticide droplet size on the efficiency of mosquito control in order to distinguish the relationship of space spray and residue spray in dengue vector control. Tested Aedes aegypti Tainan strains were obtained from CDC laboratory colony and were treated with 22 commercial product insecticides by spray tower method (Nozzle: SU4, SU1A, SU2, SU4B, SU3, and SU3-1) resulted that each product showed high mortality and the most appropriate droplet size ranged from 20 to 50 μm to the mosquito control. Oil formulation is suitable for space spray, while suspension is suitable for residue spray.
Keywords:droplet size, formulation, Aedes aegypti