FUNGI AFFECTING THE QUINCE 



The Leaf=b!ight and Fruit=spot 



Entomospormm macidatiiin 



The leaves of quinces often become dotted with 

 small round brown spots, resembling Fig. 23, which 

 gradually become more numerous^ 

 aad may finally run together to 

 form large blotches, as shown in 

 Fig. 21 (p. 41), involving, occa- 

 sionally^ the whole leaf, and caus- 

 ing the premature dropping of 

 the foliage. This is the same 

 fungus that causes the leaf-blight 

 of the pear, and the main jDoints 

 in its develoj^ment have already 

 been described (pp. 41-44). 

 Quince fruit, as well as foliage, is 

 attacked by it, the effect on the 

 FIG. 23. QuixcE LEAF-BLIGHT f^^uit bclug sccu lu suiall browu, 

 or blackish spots which appear on the surface, and have 

 given the disease the name of fruit-spot. Several of 

 these spots frequently run together, and sometimes a 

 large part of the surface becomes affected. The fungus 

 dwarfs the fruit, and renders it less salable. The defo- 

 liation of the trees, of course, greatly reduces their 

 vitality. Young quince trees in the nursery are espe- 

 cially liable to injury by this disease, as it causes the 



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