332 



PEAE GROWING IN CALIFORNIA. 



CHAPTER XI. 



FROST INJURY AND FROST PROTECTION. 



Except in isolated districts the pear industry of California has 

 suffered little from killing frosts in the spring of the year, and except 

 at the higher altitudes little uneasiness is felt. Occasionally in the 



FIG. 136. Bartlett pears deformed by freezing in the spring. 



FIG. 137. One of the pears shown in Fig. 136 cut open, showing the absence of seeds 



due to frost injury. 



114 



