246 Shrubbery and Trees 



favorable conditions, to be a very large tree, often 

 reaching one hundred feet in height. 



Alternate freezing and thawing of the bark of young 

 trees in the early spring is likely to cause sun- 

 scald. The injury generally appears on the south 

 side of the trunk in the form of brown blisters or 

 black bark which decays and falls off, leaving the 

 wood exposed. 



One very effective method of preventing sun-scald 

 on the young trees is to bind a wide board on the 

 south side of the trunk to protect it from the hot 

 rays of the afternoon sun. 



When the bark on trees has become hard, it should 

 be softened by washing it in the early spring with 

 a strong solution of soapsuds, lye, or whitewash, 

 which may be applied with a paint brush or an 

 old broom. A child's toy broom will answer splen- 

 didly, being easy to handle. 



San Jose scale may be detected by the appearance 

 of innumerable small specks of a light gray shade. 

 They can be removed by means of the finger nail 

 and they usually appear on young shoots. 



To follow the planting of either deciduous or co- 

 niferous trees in the extremes is not attractive. An 



