PRUNING ORANGE AND PEACH 315 



room for the vigorous ones. High heading is 

 practiced l>y some growers. It is open to the 

 general objection to high heading (see discussions 

 on pages 193-203, and page 216). The natural 

 form of the orange tree is undoubtedly superior 

 so long as the tree is not persecuted by pests, 

 and is in a situation where natural conditions 

 favor it. When it is beset by evils its treatment 

 may have to be changed to aid in conquering 

 them."* 



For discussion of the treatments to be given 

 frozen orange trees, see pages 146-149. 



Peach 



The peach usually bears on the shoots of the 

 previous year; therefore, heading- in thins the 

 fruit. Heading -in also induces a growth of new 

 shoots, and thereby increases the fruit -bearing 

 wood. Heading -in is also advantageous in re- 

 moving winter -injured twigs. Notwithstanding 

 these advantages, heading -in of the peach is a 

 question of local application and of training the 

 top to some given form. It is more generally 

 1 tract iced on heavy lands on which the trees grow 

 exuberantly than on sandy lands. The writer 

 believes that heading-in is less essential to peach - 

 growing in North America than the literature of 



*Wickson, "California Fruits," 449. 



