

CHERRY LOUSE 



131 



spring, start new generations. See figure 152, which also illustrates 

 A . sorbi, occurring on apple trees. 



Control. These insects may be controlled with any of the 

 tobacco extracts. Special care must be taken to strike all the 



Fio. 153. Cherry-le 



i; 3, pupa; 4, 



adult. (From Geneva Bull.) 



lice, which are concealed under the leaves, with the spray solution. 

 A better way, where trees are in the nursery or not too large, is to 

 bend over the affected branches and swash the infested tips in a 

 pan of tobacco extract. Black Leaf 40, for example, may be used 



