Field studies were conducted in 1999 and 2001 in western Oregon to determine the effect of between-row spacing on severity of white mold (Sclerotinia sclerotiorum) in snap beans. Planting density was held constant at 445,000 plants ha–1 and between-row spacing ranged from 19 to 150 cm. Disease severity and pod rot were greatest in both years of study at the 19-cm between-row spacing and declined linearly as between-row widths increased. Severity of disease in 1999 was 24%, 41%, and 88% lower at the 38-, 75-, and 150-cm between-row spacings, respectively, than at the 19-cm row spacing. In 2001, disease severity was 11%, 25%, 34%, and 51% less at the between-row widths of 38, 75, 114, and 150 cm, respectively, than at the 19-cm row spacing. Incidence of pod rot declined by 0.24% and 0.64% for each 10-cm increase in between-row width in 1999 and 2001, respectively. The fungicide vinclozolin effectively suppressed pod rot in both years at all between-row spacings. Pod yield was not influenced by between-row spacings of 19 to 114 cm, but yield was significantly lower at the between-row spacings of 150 cm. Increasing the between-row width of snap bean rows may be an effective disease management tactic to suppress white mold when fungicides are not applied or if efficacious fungicides are not available.