340 AGRICULTURE. 



main upon the tree and dry up, thus protecting 

 the spores to start an extensive crop the suc- 

 ceeding year. 



Every rotten apple, whether on the ground 

 or on the tree, should be destroyed, and all can- 

 ker spots on the branches or trunk cut out. 

 Spraying with the Bordeaux mixture should 

 be begun the middle of July, and repeated 



KIG. 126. AN APPLE ATTACKED BY BITTER-ROT FUNGUS. 

 (After Alwood.) 



twice a month or oftener. Substitute for 

 the Bordeaux mixture, as the apple reaches 

 its growth, the ammoniacal copper carbonate 

 solution. 



4. Apple Scab (Fusicladium dentriticuni). 

 -This common and very injurious fungus at- 

 tacks both foliage and fruit. It is found on the 



o 



leaves as "sooty" spots. The leaves become 

 yellow and fall. It appears on the fruit as a 



