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 be addressed to L. Woolverton, Grimsby, Ontario. 



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WELCOME HOME. 



It has not yet been announced in the 

 Horticulturist that the Editor has been ab- 

 sent for the past three months enjoying a 

 honeymoon in Europe. We are pleased to 

 state that after an enjoyable tour of the Old 

 World, Mr. Woolverton is expected to re- 

 turn early next month^ when he will resume 

 his accustomed charge of our journal. It 

 is not too late, on behalf of all the readers 

 of the Horticulturist to wish its home-com- 

 ing editor rnany years of personal prosperity 

 and happiness, as well as added years of use- 

 fulness as its popular and efficient editor. 



THE SPRUCE GALL LOUSE. 



Sir, — Your attention has no doubt been directed 

 to the fact that many spruce trees, widely used 

 throughout the province for ornamental purposes, 

 are dying. In some cases the limbs begin to die 



next the trunk and extending gradually out to the 

 tip, and in other cases the outer portion of a limb 

 will die first and then the trouble will gradually 

 work inward till the limb is quite dead clear to the 

 trunk. Certain limbs are attacked while many 

 others remain quite green and healthy looking, 

 but gradually limb after limb is attacked until the 

 whole tree is destroyed. Is this caused by some 

 insect pest, or what is its cause — and what is the 

 remedy? I shall be very greatly obliged if you 

 will favor me with any information which will 

 t nable me to save some fine, well grown trees on 

 my front lawn, which are being attacked in the 

 way I have described. 



Oshawa. L. K M. 



Answered by Prof. Wm. Lochhead, O. A. 

 C, Guelph. 



It is difficult to state definitely the exact 

 cause of the dying of the spruce trees from 

 the description, but I venture to suggest 

 that the cause is the Spruce gall-louse. Mr. 

 M. does not state a characteristic of 

 the work of the gall-louse, namely the 

 gall-like growth on the terminal twigs. The 



