126 THE MONTHLY BULLETIN. 



THE PEAR SCALE. 

 Epidiaspis piricola (Del Guercio). 



General Appearance. — The female scale is circular or oval with first 

 exuviae dark brown and in the center. The color is dark gray with 

 glossy finish. The male scales are readily distinguished by their small, 

 pure M^hite, elongated shells, with single median longitudinal carina. 

 They are much flattened posteriorly. The larval skin is brown or 

 yellow. 



Life History. — This species resembles the San Jose scale in its habits 

 and is often mistaken for it. 



Distribution. — In the Santa Clara Valley. 



Food Plants. — Pear, plum, apple, peach and currant. 



Control. — Lime-sulphur spray (1-9) when the trees are dormant is 



a good remedy. The crude oil emulsion is also highly remommended 



for this scale. 



THE GREEDY SCALE. 



Aspidiotus cameUicB Sign. 



(Aspidiotus rapax Comst. ) 



(Pig. 109.) 



General Appearance. — This scale greatly resembles the San Jose 

 scale, but is somewhat lighter in color, larger, much more convex, 

 being noticeably high and with exuvise near one side. The shell is thin 

 showing the vellow bodv beneath. 



Fig. 109. — Greedy scale (Aspidiotus cuvielUw Sign.) around 

 calyx of apple. (Cal. Hort. Com.) 



Distribution. — One of the commonest scale insects and found in 

 wild as well as cultivated areas throughout the State. 



