SOIL AND CULTURAL METHODS 



329 



chief fungous diseases, while the white grub, leaf roller, and 

 strawberry root louse are the principal injurious insects. 



Bush Fruits. The bush fruits include the currants, 

 gooseberries, blackberries, raspberries, and dewberries. 

 They are more easily grown than most of the tree fruits 

 and give greater yields and quicker returns. As the de- 



Fig. 174. Spraying strawberries. 



mand for fresh bush fruits in the local markets is usually 

 greater than the supply, they are profitable crops for the 

 fruit grower. 



Soil and Cultural Methods for Currants and Goose- 

 berries. The ideal soil for currants and gooseberries is a 

 rich, moist, rather heavy soil, although in the Northern 

 States good yields are grown on lighter soils. There are 

 probably no cultivated crops that respond more generously 

 to manuring than these fruits. Much humus in the soil 

 furnishes the richness, coolness, and moisture that they 

 require. 



