DIVISION OF ENTOMOLOGY 509 



SESSIONAL PAPER No. 16 



ern fruit belt was inspected, from Hants county in the east to Yarmoutli county in 

 the west. The infected properties were scattered over about 175 miles of territory. 

 The following 1 indicates the extent and result of the work: — 



't, 



Number of properties inspected. . 1,758 



Number of trees inspected (over) 157,065 



Number of properties infested with scale, living or 



dead i 785 



Number of trees of 1910 planting destroyed 7 



" " 1911 " 345 



" " 1912 " 341 



Total of trees destroyed. . . .i 693 



Living scale was found as follows : — 



On trees of 1910 planting, on 3 properties. 

 « 1911 a n 



" 1912 " 127 " 



The fact that, altogether, living scale was found on 201 properties, on trees 

 planted from 1910 to 1912, indicates the great importance of this discovery and the 

 wisdom of taking immediate action. In October, 1912, the Provincial Government 

 of Nova Scotia passed regulations requiring certificates that the nurseries from which 

 Canadian* nursery stock imported into the province had been inspected between 

 June 15 to September 15, and the regulations further provided that such nursery 

 stock should be fumigated in fumigation houses established at Truro, N.S., and 

 Digby, N.S. Most of the Canadian nursery stock imported into Nova Scotia origin- 

 ates in Ontario nurseries. Under the regulations of the Ontario Government, the 

 fumigation and inspection of nursery stock is already provided for, so that the regu- 

 lations of Nova Scotia will facilitate the enforcement of such necessary requirements. 

 The Provincial Government of Nova Scotia proposes to make a thorough inspection 

 of the entire fruit belt during the coming summer (1913). It is not improbable that 

 the immediate steps which are thus being taken to eradicate the infection will pre- 

 vent the scale from spreading and in the end, prove successful. 



INVESTIGATIONS IN QUEBEC. 



A field laboratory was established, after consultation with the Quebec Pomo- 

 logical Society, at Covey Hill, Quebec, in the orchard of Mr. G. B. Edwards, for 

 whose co-operation and interest we are indebted. As it was not possible to commence 

 work until the latter part of July, little more than a beginning could be made. 

 Nevertheless, Mr. C. E. Petch, our field officer who was placed in charge, succeeded 

 in initiating one or two investigations on important fruit insects in that region, in 

 addition to collecting a good deal of information of a miscellaneous character on the 

 insects affecting fruit and fruit trees. The four most important orchard pests in the 

 district are the Apple Maggot (Rhagoletis pomonella), Codling Moth (C pomonella), 

 Plum Curculio {Conotraclielus nenuphar) and the Apple Curculio (Anthonanvti.s 

 quadrigibbus) . Owing to the fact that our knowledge of the last-named insect, A. 

 quadrigibbus, which is a serious apple pest in European countries, has received little 

 attention on this continent compared with the other insects mentioned, it was decided 

 to pav particular attention to a study of its life-history and control, concurrent obser- 



♦Nursery stock imported into the province from countries outside Canada is already- 

 governed by the Dominion Regulations under The Destructive Insect and Pest Act. 



