THE CANADIAN HORTICULTURIST. 



Fig. 2074 —A. A piece of twig showing the oval- 

 shaped scars made by the Buflfalo Tree-Hopper. 

 B. Two scars showing the eggs. C. Adult 

 BuiTalo Tree-Hopper, side view. D. Same, 

 front view. 



maple, willow and poplar. As food, it 

 prefers, however, the juices of weeds and 

 other succulent plants to those of the apple, 

 for it is seldom found feeding" on even the 

 tender twigs and shoots of the latter. 



Remedial Treatment. — Insecticides are of 

 little value in diminishing- the severity of 

 the attacks of the Buffalo Tree-Hopper. The 

 best treatment is to remove and burn all af- 

 fected twigs and branches during the season 

 of pruning, as the eggs will then be de- 

 stroyed. 



Clean culture, by which weeds and other 

 plants on which the insects feed are de- 



stroyed, will also aid appreciably in reduc- 

 ing the number of the pests. 



MORE ABOUT THE SAN JOSE SCALE. 



Every year brings to light some new fea- 

 ture in the treatment of the San Jose Scale. 

 Last year the value of crude petroleum was 

 clearly proven ; three or four years ago, 



