254 



GREENHOUSE MANAGEMENT. 



ditions can be controlled better, but on the other hand 

 there is the disadvantage of requiring much more fre- 

 quent attention 

 regarding the wa- 

 tering of the 

 trees, particularly 

 during the summer 

 months. 



For the pear, 

 a quince stock is 

 desirable, and the 

 Mahaleb is prefer- 

 red for the cherry, 

 but peach seedlings 

 can be used as 

 stocks for the 

 peach, nectarine 

 and apricot, al- 

 though the myrob- 

 olan plum stock 

 can be used for 

 them as well as for 

 the plum. 



For pot cul- 

 ture, trees of pear, 

 plum or cherry will 

 require from ten-to 

 fourteen-inch pots 

 when three or four 

 years old, and as 

 they increase in 

 size can be shifted 

 to tubs. The peach 

 and nectarine trees 

 The soil for the 

 plum and pear trees should have a liberal admixture of 



FIG. 89. 



PEAR LOUISE BONNE GROWN IN 

 A POT. 



will require somewhat larger sizes. 



