Ill 



of a line in length. The female deposits its eggs in 

 furrows made in the inner bark and alburnum. 

 Schmidberger saw reason to conclude that this insect 

 only attacks sickly trees. It commences its boring ir 

 May, and the larvae continue feeding until late in tb 

 autumn. 



American Blight (Eriosoma lanigera — Aphis 

 lanigerci). — We have glanced at the history of this 

 comparatively recent plague of our apple-trees, and 

 have but little to add to that narrative. Above all the 

 iusects infesting the apple-tree this is the most preju- 

 dicial. Some fifteen years since, we purchased a lot 

 of Crabstocks from an eminent nurseryman for graft- 

 ing on ; up to that period we had not an individual 

 of this species in the gardens. The unlucky Crabs 

 were infested with it, as indeed were all the apples 

 and stocks in the above nursery ; and from them it 

 took to the apples of the kitchen-garden, and, in spite 

 of numerous dressings, we have never been able to get 

 completely rid of it to this day. 



Before proceeding to enumerate the various remedies 

 which have been suggested, we will particularize a 

 little more fully the phenomena attendant upon the 

 appearance of this insect. The cottony matter ap- 

 pearing in the cracks and excrescences of apple-tree 

 branches in the spring envelopes colonies of this in- 

 sect, and which, when crushed, exude a reddish fluid. 



