PEAR GROWING IN CALIFORNIA. 



307 



Fig. 113. Yucca tree protectors on young pear trees to prevent sun scald and 



injury from rabbits. 



and many trees were injured by sealding on the south side imder- 

 neath the paper. This injury was noted in a hot section shortly after 

 an exceedingly hot spell in the summer. No doubt similar injury would 

 result to pears under like conditions. The danger would be greatly 

 minimized in sections of the state that are not subject to excessive 

 conditions of heat during the summer time. Whitewash applied with 

 a brush to the trunks is a valuable sun-scald preventive, and has 

 much value in repelling the attack of rabbits, if combined with aloes. 

 It is, however, very difficult to make a whitewash sufficiently adhesive 

 during the rainy season to remain long on the trees. 



Sun-scald may be prevented by a stake, board or other object driven 

 into the ground on the south side of a tree, and in sections Avhere 

 rabbits are not troublesome this method is often used by the orchardists. 

 If rabbits and not sun-scald have to be considered a cylinder of a small 

 mesh of woven wire, placed around the trees, can be used very success- 

 fully. Poultry netting of 1-inch mesh made of No. 20 galvanized wire, 

 is recommended. 



In sections where snowstorms occur in winter, and the ground is apt 

 to be covered with the snow for days at a time, there is great danger of 

 scalding from the sun's rays reflected from the snow. Trees in all such 

 sections should be protected by any of the methods for preventing sun- 

 scald, that have been mentioned. 



