336 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE III 



TREES GROWING IN EXPOSED SITUATIONS SHOULD BE PROTECTED 



Fig. 1. — Unprotected trees, growing near the pavement are very likely to 

 be gnawed by horses. A wound made when the tree is young may be kept 

 open and enlarged by subsequent gnawing and injury to the tender growing 

 edges until ultimately the tree is ruined. The exposed trunk of the tree decays 

 in time and without the protective bark covering is particularly susceptible to 

 attack by boring insects. 



Fig. 2. — Although placed in a difficult situation this young sycamore is 

 making good progress. The trunk is protected by a guard made from 15-inch 

 galvanized hardware cloth constructed from 16-gauge wire and having half- 

 inch meshes. This wire is cut in 6-foot lengths and shaped by being run 

 through a stove-pipe shaping machine. This is one of the best tj^es of tree 

 protector known and is, during normal conditions, not very expensive. It may 

 be expanded as the tree trunk increases in diameter. This protector far excels 

 the more expensive ornate ones. Note also the iron grating set in the pave- 

 ment which permits soil aeration, the access of water and applications of 

 pulverized fertilizer. 



