FUNGUS GROWTH ON TREES 93 



prevention and extermination of fungus pests 

 is by no means an easy matter, but by keeping 

 the woods free from dead and dying branches 

 and trees, and immediate attention to out- 

 breaks of the malady, much good may be 

 brought about. 



In the following notes, only the most 

 serious cases are dealt with, or, in other words, 

 such fungi referred to as are commonly met 

 with and cause most damage to our woodland 

 trees. 



Polyporus squamosus attacks the elm and 

 other hard-wooded trees, and rapidly accelerates 

 their decay. It is of large size and leathery 

 consistency, with a yellow, scaly top, and is 

 usually present where a branch has been 

 broken off, or other damage caused to the 

 trunk or limb. Removing the fungus and 

 attending to the injury by cleaning and tarring 

 will usually set matters right. 



The oak, when diseased, becomes the prey 

 of quite a number of fungi, one of the most 

 formidable and injurious being known as 

 Polyporus dryadeus. This fungus is often 

 1 8 inches in diameter, and when fully de- 



