88 FORESTRY 



Protection Against Fungoid Diseases 



As enemies of the forest, parasitic fungi have to be reckoned 

 with amongst our most dreaded pests. Trees are harmed by 

 other forms of plant life, but by none so severely as by fungi. 

 They are the more to be feared because in many cases it is 

 practically impossible to combat, or, at least, cure, their 

 attacks. Only the more important pests are here considered. 



THE HONEY AGARIC, Agancus melleus (Fig. 20). This 



FIG. 2O. SCOTS PINE KILLED BY " AGARICUS MELLEUS " 



a, b, c. Rhizomorph strands, b, c, bear sporophores, some of which are abortive. 



d, d. Cluster of sporophores arising from the mycelium in the cortex. 



fungus preys upon Scots Pine, Spruce, Larch, and other 

 conifers, and occurs saprophytically on broad-leaved trees. 



