Soil baiting using the highly susceptible Fragaria vesca clone VS1 was used to assess the persistence of infectivity of Phytophthora fragariae (cause of strawberry red core root disease) in naturally infested soil held under a variety of storage conditions and in drainpipe columns exposed in the field. The fungus was detected on all sampling dates during three years in soil samples held at −1 and +3°C, most consistently in those that were wet and moist, and less consistently in those stored dry. At 15° infectivity declined markedly in wet and dry samples but increased in moist samples during the second, before declining markedly in the third year. At 30° infectivity declined rapidly in all samples and it was not regained after a period of storage at 3°. Infectivity was detected on all sampling occasions in soil from the drainpipes where it fluctuated markedly, declining in summer then rising in autumn.