CHERRY DISEASES 171 
may kill the blossoms, thus destroying the set of fruit. It may 
destroy a whole crop of green, ripe or ripening fruit (Fig. 47) 
before picking. The trouble is particularly destructive in 
transit and in the market. Sometimes leaves (Fig. 47) and 
twigs are blighted. The losses involved are frequently exten- 
sive. The disease commonly prevents choice cherries from 
being placed on distant markets. Losses have been estimated 
from 10 to 50 per cent. Its wide range over the globe and 
the numerous fruits which the brown-rot fungus attack are 
Fic. 47. — Brown-rot on cherry. 
factors in the economic importance of the disease. The disease 
is readily controlled by spraying with lime-sulfur, diluted 1-40 ; 
first application, just before the blossoms open to prevent 
blossom-blight ; second application, just after the shucks have 
fallen, when fruits are about the size of peas; and again as 
the fruit begins to color. Arsenate of lead, 2 pounds to 50 
gallons, should be added to the second application for worms. 
Finely ground sulfur and dry arsenate of lead 90-10 may be 
dusted on the trees instead of spraying them. (See more de- 
tailed discussion under Peach, page 270.) 
