174 FRUIT CULTURE. 



green. Leaf rust is probably caused by fun- 

 gous growth. Experiments with sulphur are 

 wanting to test its efficacy. It is customary to 

 drop varieties which are most subject to this 

 disease. 



The plan of mowing off all the foliage imme- 

 diately after fruiting, though seemingly so un- 

 natural, is practiced by many of our best culti- 

 vators with excellent results. It is claimed that 

 a new, more healthy, and vigorous plant is thus 

 developed. After the fruit has matured the 

 plant is at comparative rest for a time ; both the 

 foliage and the roots dry off, to a considerable 

 extent, and trial proves that the removal of most 

 of the foliage causes a new and more vigorous 

 start, and is a positive benefit. 



