434 MAINE AGRICULTURAL EXPE;RIMENT STATION. I912. 



Life history. The winter is passed by partly grown indi- 

 viduals which become mature early in the summer. The insect 

 gives birth to living young which begin to appear soon after the 

 maturity of the female. In this State they are apparently but 

 one brooded. 



This scale has been recorded from a number of different 

 plants, among them, the apple, pear, plum, peach, cherry, birch, 

 poplar, horse chestnut, basswood, alder, haw, maple, aspen, oak. 



Fig. 475. 



etc. It 'has been reported in this country from Maine, New 

 York, New Jersey, Michigan, Ohio, Iowa, Idaho, California 

 and several other states. In Maine it is most frequently found 

 on large trees in old and neglected orchards, though we have 

 records also of its occurrence on currant bushes. Specimens 

 the past season were received from Brunswick, Millvale, Buck- 

 field and W. Auburn. 



Remedies. Spraying with lime-sulphur late in the winter or 

 early spring before the appearance of the leaves will control it. 



Aspidiotus perniciosus. r 



SAN josi; scale;. 

 Comstock, U. S. Dept. Agr., Div. Ent. 1880, p. 304. 

 Herrick. Technical Bui. 2, Miss. Agr. Exp. Sta., 1911. 



