FRUIT AND ITS CULTIVATION. 



White Woolly Currant Scale (Pulvinaria vitis var. 

 ribesiae). A pest which is readily distinguished by the 

 masses and threads of white wool-like substance which 

 accompany it. The female scale is of a yellowish tint, 

 reticulated with brown, and lays its minute eggs on the 

 woolly mass in June. The larvae move about freely, and 



Fig. 131. BROWN CURRANT SCALE (LECANIUM PERSIC^E 

 SAROTHAMNI). 



Upper figure represents the female and the lower one a side view of the 

 scaly covering which shelters the young insects. 



suck out the sap from the shoots. The woolly fibres con- 

 taining the eggs are readily blown to other bushes by 

 the wind, and birds and insects carry them about. Trees 



