INSECT ENEMIES OF EASTERN FORESTS 145 
A 
FIGURE 32.—The cottony maple scale (Pulvinaria vitis) on twigs of soft maple. 
scale has caused mortality in young pine stands and plantations in the 
Lake States and in Nebraska. 
Another species in this genus, Zoumeyella pint (King), attacks 
mugho, lodgepole, Scotch, and cluster pines and has been recorded from 
Connecticut, Pennsylvania, Michigan, and Florida. 
The European fruit lecanium (Zecanium corni Bouché) also called 
the brown elm scale is widely distributed over the entire United 
