Adjuvant for systemic fungicide, antifungal composition containing the same and use thereof

PROBLEM TO BE SOLVED: To obtain an adjuvant for systemic fungicides in the form of a stable microemulsion. SOLUTION: This adjuvant comprises (a) 10-30 wt.% water, (b) 20-50 wt.% methyl ester mixture of fatty acids obtained by transesterification of vegetable oils, (c) an anionic surface-active agent composed of an alkyl sulfosuccinate, an alkylbenzenesulfonate or a metallic salt thereof, (d) one or more non-ionic surface-active agents, composed of alkyl polyglucosides, alkyl polyether polyglucosides or polystyrenephenol polyalkoxylates and having 13-18 HLB and >65°C cloud point and (e) one or more non-ionic surface-active agents, composed of a sorbitan ester of a fatty acid or a condensation product of an alkylene oxide with an active hydrogen-containing organic compound such as a 10-20C fatty alcohol, amide, ester or a 6-12C alkylphenol or a mixture thereof having average 10-12 HLB and having 10-12 HLB. The weight ratio of the ingredients (b) to (c), (d) and (e) is (0.85:1) to (1.2:1). COPYRIGHT: (C)1996,JPO