Ralstonia solanacearum is a soil-borne pathogen that devastates tomato and other Solanaceae crops globally. Traditional chemical controls have proven inadequate and environmentally damaging. Ralstonia solanacearum is a soil-borne pathogen that devastates tomato and other Solanaceae crops globally. Traditional chemical controls have proven inadequate and environmentally damaging. Cell & Microbiology Agriculture Phys.org – latest science and technology news stories