Bulletin 229, Diseases of Citrus in Florida scales. Ultimately the trunks and larger branches acquire an extremely rough and shaggy appearance (Fig. 35). Pieces of bark one-half inch or more in size scale loose, sometimes over wl ll-lli M IVIM W Fig. 34.-Scaly bark on watersprouts of sweet seedling orange tree, show- ing intermediate stages of the disease. (6/7 natural size.)