Bulletin 229, Diseases of Citrus in Florida


 According to Hedges and Tenny, who made a detailed study of
the disease and the fungus causing it, fruiting bodies have not
been found on naturally occurring knots, although a few strains
of the fungus have been found to produce fruiting bodies on galls
induced by inoculations in the greenhouse. The exact mode by


Fig. 45.-Citrus knot on grapefruit branch.