600 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



California than in Florida, but is present in Florida. It is said to 

 be second only to the black-scale as a pest in California. Adults 

 of this scale are circular, of reddish color and about the size of an 

 ordinary pin-head. There are several generations in the course of 

 the year but these overlap 30 that young may be found through all 

 the season. The young, like those of the San Jose scale are pro- 



FIG. 525. Purple Scale on lemon. 



duced alive and not hatched from eggs as is usually the case with 

 scales. 



This scale attacks trunk, branches, foliage and fruit and in- 

 jures the tree by sucking the juices from it. It also injures the 

 appearance of the fruit upon which it may sometimes be seen in 

 the market. 



The Yellow Scale * is a variety of the California Red Scale and 

 differs from it in its lighter color and slightly different distribution. 



* C. aurdntii var. citrinus Coq. 



