The Diseases of Trees 



MOST of the diseases of trees are caused by 

 "fungi." Fungi belong to a large family; even 

 bread mold is only one of these fungi in another 

 form. Mushrooms, toadstools, and mildew are 

 all related to the forest fungi. 



Doctors say that most of the diseases of our 

 bodies are spread by tiny germs in the air we 

 breathe. Fungi have these minute germs, or 

 spores, too; so small that you cannot see them. 

 These spores are really very small seeds. 



Long ago, perhaps, a woodpecker in search of 



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