REPORT OF THE ENTOMOLOGIST 215 



SESSIONAL PAPER No. 16 



The Gipsy Moth (Portheiria dispar). 



Potato Canker (Chrysophlyctis endobiotiaa). 



Parasitic diseases affecting potatoes externally or internally. 



Branch or Stem Canker {Nectria ditissima). 



Gooseberry Mildew (Sphcerotheca mcrs-uvce). 



White Pine Blister Rust (Peridermium strobi). 



13. The importation of potatoes into Canada from Newfoundland or the Islands of 

 St. Pierre or Miquelon is prohibited. 



14. The Minister may, upon special request to that effect, authorize the importa- 

 tion into Canada of any insect, pest or disease hereinafter specified, but for scientific 

 purposes only. 



15. The regulations made under the San Jose Scale Act are repealed. 



BROWN-TAIL MOTH. 



The work directed against the Brown-tail Moth (Euproctis chrysorrhcea) has again 

 comprised the inspection of all shipments of European and certain other classes of 

 imported nursery stock for the winter webs or nests of the insects, and, in addition, 

 the inspection of the areas infested or liable to be infested in Nova Scotia and New 

 Brunswick. 



INSPECTION OF IMPORTED NURSERY STOCK. 



The inspection of shipments of European nursery stock was concluded at the end 

 of May last (1910), and as it was in progress at the close of the previous fiscal year, 

 it was impossible to report upon it at an earlier date. In eastern Canada over two and 

 a half million plants and trees were examined and 310 winter webs of the Brown-tail 

 Moth were found. They were distributed on the different species of plants as fol- 

 lows : — 



Apple 234 



Pear 40 



Plum 19 



Ornamentals -5 



Spiraea 5 



Cherry 4 



Quince 2 



Berberis 1 



All the infested stock was of French origin and the webs were found in the follow- 

 ing proportions on the stock of the different shippers : — 



Messrs. Choplin, Maze! 165 



" L. Courant, Angers 57 



L. LeRoy, Angers 48 



" V. LeBreton, Angers 23 



" Detrichi, Angers 10 



" Colombe, Senault & Iluet, Calvados 4 



" Andre LeRoy, Angers 3 



These figures do not include the stock imported into British Columbia which was 

 inspected by the Inspector of Fruit Pests of the province and his officers. 



A letter was sent to each of the above nurserymen calling their attention to the 

 seriously infested nature of their .<tock, and we understand from them and from Dr. L. 



