Report of the Department of Lands and Forests for fiscal year ending March 31, 1950 Page 136 



The Division again retained the services of Dr. C. E. Atwood of the Department 

 of Zoology, University of Toronto, in an advisory capacity in matters relating to 

 forest entomology. In the summer of 1949 Dr. Atwood made a number of trips to 

 areas infested by various insects and obtained a general picture of the forest insect 

 situation in Ontario, which he presented in a report. His report includes the following: 



1. Special survey of larch sawfly outbreak in northwestern Ontario. 



2. Spruce budworm in various parts of the province. 



3. Jack pine budworm east of Kenora. 



4. Tent caterpillars in various parts of province. 



5. Coniferous feeding sawflies near Sault Ste. Marie and south of Orillia. 



6. European pine shoot moth in southern Ontario. 



7. Striped maple worm in Algoma district. 



8. Yellow-headed spruce sawfly in various parts of province. 



9. Birch sawfly, Algoma district and eastward. 



10. Birch leaf-miner in Algoma district. 



11. Birch skeletonizer. North Bay to Sudbury 



12. Elm insects: The elm leaf-miner and the elm case-bearer in southern Ontario. 



Statistics 



The statistical work of the Division is supervised by Dr. D. B. DeLury, who 

 is retained by the Department as a part-time consultant. Mr. L. M. Morrison is 

 employed full time in this work. Assistance has been rendered both in the design of 

 experiments and analysis of resulting data. 



The following projects have been undertaken since the statistical section was 

 organized in 1948: 



1. Census of deer population. 



2. Forest nursery inventory improvement. 



3. Correlation of height, diameter and age of black spruce. 



4. Spread of game from protected areas into surrounding territory. 



5. Juvenile cock pheasant population of Pelee Island. 



6. Design of silvicultural experiment in Port Arthur area. 



7. Study of hardwood volume table compilation. 



8. Fisheries statistics. 



The results of the recently completed pheasant studies referred to above should 

 receive wide attention, as the population assessment and prediction figures are valu- 

 able and of great public interest. The forest sampling studies have yielded important 

 results. 



