Studies of the Wet Dust and Mist-Dust Mixed Applicator (I)

On the Mechanism of Mist-Dust Mixed Application Method

Abstract

The Water-Dust (or Wet dust) and Mist-Dust application method were tried, using four types mist-dust mixed application nozzles made by the authors. In this paper, the mechanism of liquid medicine and dust mixed method and the characteristics of mixed droplets had been researched experimentaly. And the results of those were as follows;
(1) With use mixed method, coverage to plant surface by chemicals was increased until max. 80.79%.
(2) And the adhesion volume was increased too and the arriving distance was longer than the dust only application. Especialy, 2-head type and 3-head type nozzles had good performance.
(3) Mixed application method fill up to the adhesion and the loss of fly in the only dust powder and make up the arriving force and the diffusion in the only mist, namely it make middle type application patterns.
(4) In conclusion, then, it appears that these new application methods will be effective upon the increase of pest control effect and this new idea will be hopeful.