INSECTS 



11 



FIG. 13. Life history of gypsy moth. (Prepared by Kny-Scheerer Co. 

 Photographed by E. R. Sanborn, N. Y. Zoological Park.) 



dentally escaped and gradually increased until the damage to fruit, 

 forest, and shade trees caused by the larvaB was so evident that 

 property owners had to call upon the state to aid in their extermina- 



