PEAR GROWING IX CALIFORXIA. 



379 



Control. 



Heavy spraying with Formula No. 1 or 2, applied just as the buds 

 are beginning to swell iu the spring will control perfectly-. The time 



Fig. 170. Injury to pears and leaves from blister mite. 



of application is very important, as once the larva' begin feeding in the 

 tissues of the unfolded leaves no spray will reach them. The applica- 

 tion must be made just as the mites are leaving their winter quarters 

 at the time mentioned. 



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