The Characteristics of Probenazole (Oryzemate®) for the Control of Rice Blast

Abstract

A new type chemical for rice blast control, probenazole (Oryzemate®, 3-allyloxy-1,2-benzisothiazole-1,1-dioxide) was found to be an effective protectant. It exhibited excellent preventive effects by spraying the suspension at 400 ppm, soil treatment, drench, or submerged application of root. The most intriguing events in the application via root were that probenazole showed excellent effects with doses less than 200 g per 10 ares. These findings indicate that probenazole may be used to control this disease by submerged application in paddy field. Growth inhibition of several kinds of crops by similar applications was not observed at the recommended doses. © 1977, Pesticide Science Society of Japan. All rights reserved.