APRICOT DISEASES 15 
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REFERENCE ON ScaB 
Heald, F. D. Report of committee on fungus diseases for 1911. 
Apricot scab or freckle (Cladosporium carpophilum Theum). 
Texas Agr. Dept. Bul. 22: 159-160. 1911. 
CoryNEuM Fruitr-Spot 
Caused by Coryneum Beijerinckiti Oudem. 
This disease is best known in California on the peach and is 
referred to as the 
California peach- 
blight, — shot-hole 
and fruit-spot. In 
that state it was 
given special atten- 
tion in the years 
1907-1909. It has 
also been noted in Fic. 41. — Coryneum-blight disease on apricot 
New York. In for- fruits. 
eign countries it 
is not unknown, having been recorded from Australia 
as early as 1882, and an 
epiphytotic was reported 
from Algeria in 1904. 
Small, reddish spots at 
first with light centers 
then becoming dark-green 
to black, are produced on 
the fruits (Fig. 41). The 
foliage is spotted; the 
affected areas are brown, 
Fig. 42. — Coryneum-blight disease on but soon these fall away, 
i leaving a shot-hole effect in 
the leaf (Fig. 42). Fruit-buds are sometimes killed as a result 
