smaller branches of soft maples, especially, may be fes- 

 tooned beneath in midsummer with masses of the 

 cottony maple scale, while the false maple scale pro- 

 duces large, chalky patches on the trunks of hard 

 maples and loose clusters of cotton- 

 covered insects on the leaves. All of 

 these may seriously weaken the infes- 

 ted trees or even destroy them in part 

 at least. 



Most caterpillars feed on leaves. 

 It may surprise many to learn that 

 a few caterpillars have powerful jaws 

 and gnaw wood easily. This is true 

 of the imported leopard moth, the 

 caterpillar of which lives in the trunks, 

 branches, and even twigs of many 

 trees and shrubs. It gnaws large 

 burrows in the living wood and kills 

 or disfigures many trees, especially 

 soft maples in and about New York 

 City. The caterpillars of the similar carpenter worm 

 make large, irregular galleries in hard maple and oak, 

 and the large grub of the sugar maple borer partly 

 girdles branches or even trunks of many fine maples 

 throughout the State. 

 This latter insect ruins or 

 practically destroys many 

 superb maples. 



The bark of some trees, 

 especially pine and hick- 

 ory, is entered by small, 

 brown or black, cylinder- 

 shaped beetles less than a 

 quarter of an inch long. 

 These make small bur- 

 rows or galleries in the 

 inner bark, while the tiny- 

 grubs, hatching from eggs 

 placed on either side of 

 the burrow, do their part 



in tracing a peculiar design and greatly assist in kill- 

 ing the tree. Thousands of noble hickories have been 

 destroyed in and about New York City by the hickory 

 bark borer during the last five years. 



