THE DISEASES OF FRUITS. 



FIG 289. Portion of Plum branch, show- 

 ing both the normal fruit and the en- 

 larged "pockets" due to the Exoascus 

 /V//;/z Fcl. (From Galloway.) 



patches upon the leaves 

 and causes the premature 

 falling of the foliage. In 

 general appearance the work 

 of this fungus resembles that 

 of the leaf blight of the pear. 



Remedies. Fairly good 

 results have been obtained 

 by the use of fungicides, 

 and plum growers who suffer 

 from a defoliation of their 

 orchards should see to it 

 that sprayings are resorted 

 to, beginning early in the 

 season. 



The Scab ( Cladosporium 

 carpophilum Thum.) is the 

 same as that upon the peach 

 treated above, to which the 

 reader is referred. 



The Fruit Rot (Monilia 

 frnctigena Pers.) is also the 

 same as that of the peach, 

 and is another illustration 

 of a common enemy to plants 

 that are closely related. 



THE CHERRY. Black Knot 

 (Plowrightia morbosa Sacc.) 

 of the cherry is the same as 

 that of the plum, and the 

 peculiarities of the species 

 and method of treatment 

 need not be again given here. 



The Leaf Blight (Cylin- 

 drosporium Padi Karst.) is 

 the same enemy as men- 

 tioned above for the plum. 

 This " shot hole " fungus is 

 very common upon cherry 

 foliage. 



