INSECTS INJURIOUS TO FRUITS. 93 



a flat or half circle around the hole in which the egg is placed, 

 as is so characteristic of the curculio. 



Remedies. The remedies recommended for the curculio are 

 also best for preventing the work of this insect. 



The Plum Leaf Aphis (Aphis prunifolii) commonly called 

 "leaf lice," is frequently troublesome and occasionally appears in 

 such large numbers as to seriously check the growth of the trees. 



The life history of this insect is the same as for the apple 

 leaf aphis, which see. 



Fig. 37. Hoop tent ready to put over a tree. 



