AGRICULTURAL EXPERIMENT STATION. 



149 



F[G. 34. 



The female scale is shown (Fig. 34, c) enlarged. The real size 

 is about one-twelfth of an inch and the* color whitish or light gray. 



The male scale (Fig. 34, b.) is about one twenty-fifth of an inch 

 long'and white with a tinge of yellow. 



The winged male is shown (Fig. 34, a) highly magnified. Itjis 

 yellow, mottled with reddish brown and has transparent wings. 



REMEDY. 



Wash the stems and leaves with whale-oil soap and water, or by 

 means of a sponge apply occasionally a thin coating of kerosene or 

 sweet oil to the leaves and stems. 



