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Rifampin-resistant (Rif + ) strains of Clavibacter michiganensis subsp. michiganensis were used to study the epidemiology of bacterial canker of tomato (Lycopersicon esculentum). Clipping tomato seedlings in transplant beds with a rotary mower transmitted Rif + C. m. michiganensis from inoculated seedlings to healthy seedlings. Epiphytic populations of Rit + C. m. michiganensis were first detected on clipped, asymptomatic seedlings 9-13 days after the first clipping (...)
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R. J. Chang (1991) studied this question.
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