Abstract
By the use of indicator plants, P. solanacearum race 3 was detected in soil and debris collected from a heavily infested potato field 33 wk after the field was abandoned. Infested debris that was mixed into noninfested soil remained infested for 26 wk, and in 1 sample for 32 wk. In a cool temperature climate, such as that of the Northern Tablelands of New South Wales [Australia], infested debris and latently infected self-sown tubers can serve as short-term and long-term sheltered sites, respectively, for survival of P. solanacearum race 3 in the field.

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