@Kaktus sorry to take so long to get back to you. There is no cure for bacteria. Some people venture to say copper can cure it , but my experience is no. Once you discover bacteria (yellow orange color that goes soft & squishy with a fishy fragrance) the only solution is to throw it into the trash. Not into the compost pile. Do not touch any other plants and then wash your hands. Bacteria is spread by insects and splashing water.
@Baja any update on the Pilocerus in the public garden?
Kaktus said: Assume if we have cactus / succulents infected by bacteria, what will be the method to save them? Is clean cutting is the only option?