156 



INSECTS AFFECTING THE EOSE. 



Remedies. — In cities where a stream of water 

 from a sprinkling hose is always available, the simp- 

 lest plan of keeping these pests away is to spray the 

 bushes forcibly every clay or two, to frighten away 

 the flies ai id wash off th e larvae. If this process is gone 

 through with sufficient force and thoroughness, it is 

 the neatesl and best remedy. The slugs also maybe 

 easily killed by spraying or dusting the infested 

 bushes with hellebore or insect powder. 



The Rose Leaf-hopper. 



Typhlocyba rosss. 



Owners of rose bushes are frequently annoyed by 

 finding the lower sides of the leaves covered with a 

 small white insect that sucks 

 out the cell contents and 

 gives the upper surfaces a 

 peculiar white - spotted ap- 

 pearance (Fig. 82). This is 

 the Rose Leaf-hopper, a spe- 

 cies that has been known to 

 injure these lovely ornamen- 

 tal plants for nearly a cen- 

 tury. The adult, shown con- 

 siderably magnified at Fig. 

 83, a, is a little more than one- 

 tenth of an inch long, with a yellowish-white body, 

 and white, semi-transparent wing-covers. In com- 

 mon with other leaf-hoppers this insect has long- 



Fig. 82. Rose leaf injured by 

 leaf-hoppers. 



