Stories by Karl Maramorosch

Not every virus is harmful to its host. Among the beneficent Viruses is one that causes a desirable streaking of tulips and another that enables an insect to feed on plants on which it would normally starve

A disease of asters is caused by a virus that multiplies in both the plant and the insect which infects it. This makes the virus one of the few pathogens common to the plant and animal kingdoms