An Estimation of Organic Phosphorous Compound Spray Residue on Dried Tea leaves

Abstract

1. Fifty-eighty p. p. m. of parathion was contained in dried tea leaves plucked on the day of spraying. But it was decomposed very rapidly on the tea leaves and most of which was lost in the course of 3 weeks after spraying.
2. Most of surnicide (ACC 4124) sprayed on the tea leaves was decomposed in the course of 10 days after spraying.