You also want to add some form of "grit" like crushed eggshells, rock dust, or even garden soil. As the worms work their way ...

or even just use the media the worms are swimming in, and give that media or the crushed-worm lysate to naive worms, those worms now ‘learn’ to avoid the pathogen as well,” says Coleen ...

Crushed eggshells, on the other hand ... Or you can add your kitchen waste to a worm bin and let red wigglers turn your trash into compost treasure. When the compost is ready, you can use it ...