320 MANUAL OF FRUIT DISEASES 
the rust fungus are found on hepatica, anemone and thalic- 
trum, all common wild flowers. The trouble shows on the 
lower surface of the leaves of stone-fruits as small, round, pow- 
dery, yellowish brown pustules. Opposite these pustules, on 
the upper surface, the leaf turns reddish yellow in local areas. 
Such lesions frequently become limited and the affected tissue 
falls away, leaving a shot-hole effect in the leaf. These spots 
and holes may be confused with those caused by the California 
peach-blight fungus (Coryneum Beijerinckii Oud.), but are 
distinguished from the latter by their smaller size. Peach 
rust has a rather general geographical range, but does not 
ordinarily do damage sufficient to warrant treatment. See 
also Plum, page 377, and Apricot, page 156. 
SILVER-LEAF 
Caused by Stereum purpureum Fries 
While this disease affects primarily the plum and apple, 
many other fruit-trees and shrubs are liable to it. The peach 
is sometimes victim to silver-leaf, but it never suffers so gen- 
erally and so extensively as others of the stone-fruits like the 
plum. The characteristics, cause and other features are dis- 
cussed under Plum, page 368. 
REFERENCES 
Anonymous. Silver-leaf in peaches. Gard. Chron. 3: 30: 220; 247- 
248. 1901. 
(See additional literature listed under Plum, page 373.) 
Frosty-M1LpEW 
Caused by Cercosporella Persice Sacc. 
In the central Atlantic states there occurs a peculiar disease 
of peach-leaves. It is more common from Maryland south- 
