84 



GARDEN FOES. 



healthy leaves, fruit, or flowers, vvliere, if conditioms are 

 favourable, inoculation takes place, and a new centre of 

 disease is formed, which within a week produces a crop 

 of spores. On the fruit the first outward sign of the pre- 

 sence of the fungus is a brownish discoloration of the 



i^. 





BROWN APPLE ROT DISEASE. 



Fip. 1, Diseased shoot; 2, Leaf attacked by the funfrus ; 3, Apple with tuii,i;ns 

 growing- in concentrated rings thereon ; 4, Cherry blossom injured by the fungus. 

 (From Board of Agriculture Leaflet.) 



skin ; this is followed by the appearance of numerous 

 minute, velvety, greyish-olive tufts of mycelium, bearing 

 long chains of spores; not infrequently the chains of 

 spores are more or less branched. As the tufts of the 

 fungus increase in number they are usually arranged in 

 irregular circles round a central starting point, resembling 



