FRUIT TREES 189 



CHERRIES 



There are early and late varieties of this fruit. In 

 selecting trees try to obtain a succession. There are 

 also sweet and sour cherries. The sweet kinds will de- 

 velop into large trees and the sour will remain low- 

 growing. Cherries will thrive on almost any kind of 

 good soil, but it must be kept well cultivated while the 

 trees are young. 



For aphis, use kerosene emulsion, quite strong, repeat- 

 ing every three or four days. For slugs, apply hellebore 

 and arsenate of lead. The sour kinds of cherries are less 

 subject to attacks from fruit enemies than the sweet ones. 

 If black knot appears, cut out and burn the affected 

 parts to keep the disease from spreading. 



