METHOD OF DETERMINING THE PRACTICALLY USEFUL APPLICATION DOSE OF PESTICIDE, METHOD OF DEVELOPING PESTICIDE AND METHOD OF INDICATING THE PERFORMANCE OF PESTICIDE

摘要

A method of calculating the practically useful application dose of a pesticide at which an arbitrary residual effect time and the efficient preventive value can be sustained wherein, in the conversion of the reduction constant and the damage ratio or the damage inhibitory ratio of the pesticide obtained as the results of a residual effect test carried out under practical environmental conditions or conditions closely similar thereto into the corresponding chemical dose on the basis of the results of a concentration gradient test, comparison is made with a control chemical.