QUINCE DISEASES 397 



the name applied to the disease irrespective of the location of 

 the galls on the tree. The same disease affects the apple, peach 

 and other plants. Pacific Coast growers meet with this trouble 

 more than others in the United States. The disease also occurs 

 in Africa. (See Apple, page 108.) 



REFERENCES 



Hedgcock, G. G. Some stem tumors or knots on apple and quince 

 trees. U. S. Agr. Dept. Plant Indus. Bur. Circ. 3 : 5-16. 1908. 

 (Other references, page 112.) 



