Control efficacy of cyflufenamid in the field and its fungicidal properties

The control efficacy of a novel fungicide, cyflufenamid, (Z)-N-[α-(cyclopropylmethoxyimino)-2,3-difluoro-6-(trifluoromethyl) benzyl]-2-phenylacetamide was studied. In field trials, a low dosage (25 ppm) of cyflufenamid (10%WG) showed excellent efficacy in almost all plants against powdery mildew caused by various pathogens in agricultural production. Cyflufenamid also had high efficacy against brown rot in stone fruits caused by Monilinia fructicola. The fungicidal properties of cyflufenamid were investigated to elucidate the high performance of the compound in the field. Pot tests against cucumber powdery mildew indicated that cyflufenamid has excellent preventive, curative, long residual, translaminar and vapor phase activities at low concentrations. © Pesticide Science Society of Japan