34 



N.S. ENTOMOLOGICAL SOCIETY. 



Some overwintering females were placed on apple seedlings this 

 spring and the details of numbers of young, generations, etc., determined 

 as shown by Fig 3, and Tables No. 10 and 11. 



Fig. 3. Generations of Eriosoma Eanigera, Hausmann. 



Injuries. In more southern countries where damage to the roots 

 is frequent, this insect is a much worse pest than in Nova Scotia, where 

 injury to roots is seldom found. The injury to the parts above ground 

 consists in open woiinds or cankers, but only under circumstances par- 

 ticularly favorable to the insect, is much damage done. Sometimes galls 

 are found on the twigs, which resemble those produced on the roots by 

 the attacks of the same insect. 



Control. Thoroughly drench insects with a 15 per cent solution of 

 kerosene emulsion. Where the aphids are not too numerous they may 

 be readily destroyed by simply painting affected parts with kerosene. 

 When the aphids have moved out on the smaller branches late in the sea- 

 son, a heavy spray of Black Blackleaf 40, (nicative sulphate) 1-700. 



