Blight fungicide with uncoupling activity on oxidative phosphorylation. Prepn: R. Nishiyama et al., EP 31257; eidem, US 4331670 (1981, 1982 both to Ishihara Sangyo Kaisha). Mechanism of action study: Z. Guo et al., Biochim. Biophys. Acta 1056, 89 (1991). Field trials in bulbs: B. P. Anema et al., Meded. Fac. Landbouwwet. Rijksuniv. Gent 53, 635 (1988); in potatoes: B. P. Anema et al., Brighton Crop Prot. Conf. - Pests Dis. 1992, 663.