2 GEGRGE V. SESSIONAL PAPER No. 16 A. 1912 



REPORT OF THE DOMINION ENTOMOLOGIST 



C. GORDON HEWITT, D.Sc. 



Ottawa, March 31, 1911. 



Dr. Wm. Saunders, C.M.G., 



Director, Dominion Experimental Farms, 

 Ottawa. 



Sir, — I have the honour to submit herewith my report of the work of the Division 

 of Entomology, with an account of certain of the insects whose depredations received 

 cur attention and concerning which advice was given during the year ending March 

 31, 1911. 



During the past year, which is the second succeeding the establishment of a separate 

 Division and the re-organization of the work, there has been a very great increase in 

 the executive and administrative work in addition to that carried out in the field. 

 This increase is indicated to a certain extent by the correspondence of the Division, 

 which was more than double that of the previous year; 2,476 letters were received 

 and 3,845 letters were despatched. 



The most important step which has been taken in Canada with a view to combat- 

 ing insect and other pests and plant diseases has been the enactment of ' The Destruc- 

 tive Insect and Pest Act.' With the rapid growth of the country, large quantities 

 of trees, plants and other vegetation classed as ' nursery stock ' are being brought 

 into Canada annually from all countries of the world. The importation of such vegeta- 

 tion means the introduction into Canada of insects, pests and plant diseases of various 

 kinds, some of which, such as the San Jose Scale and the Brown-tail and Gipey 

 moths, have already inflicted enormous losses as a result of their introduction and 

 subsequent spread in the United States and Canada. In view of this dancer, it wng 

 of the utmost importance that measures should be taken to prevent, so far as it is 

 practicable, not only the further introduction of seriously injurious insects, pests, 

 and plant diseases but also the spread of such insects and other pests already estab- 

 lished in the Dominion. The Act and Regulations issued thereunder will be found in 

 the following pages. The action at present taken in virtue of the powers given 

 under the Act may be Briefly summarized as : the fumigation with hydrocyanic 

 acid gas at the fumigation stations established at certain ports on the fron- 

 tier under the San Jose Scale Act of 1895, of stock liable to be infested with 

 that scale; the inspection of vegetation from Europe, Japan and six of the 

 New England States liable to be infested with the Brown-tail and Gipsy moths 

 and certain other injurious insects; and the carrying on of extermination work in 

 localities where pests, such as the Brown-tail moth and San Jose Scale are already 

 established. 



A new fumigation and inspection station has been erected at Vancouver, B.C., to 

 meet with the increase which is taking place in the amount of nursery stock im- 

 ported into British Columbia, and to enable us to inspect stock at the port of entry. 

 This inspection is carried on in conjunction with that required by the British Col- 

 umbia Board of Horticulture and I am pleased to record the satisfactory manner in 

 which the work has been accomplished. A conference with the Provincial Board of 



