Show colored onions repel germs in the course of nn investigation of some plant diseases hat fiat attack the common onion plant dr J 0 C walker tins has discovered that the lie colored varieties ot of onions are highly resistant to the diseases whereas the pure white onions succumb at once the secret Is that the skins skills of tile the colored onions onion contain a chemical which la poisonous to the gp germs s causing the disease it if one of these germs tries to penetrate into the colored onion bull bulb the gerin genii Is killed onions lack germ poison and disease finds them therefore nn an easy prey |