1921-22 



DEPARTMENT OF LANDS AND FORESTS 



259 



Seed collected during the year is as follows: 



Species. 



Red Pine 



Scotch Pine. . . . 



Jack Pine 



Austrian Pine.. 

 Black Locust. . . 

 Black Cherry . . 



Red Oak 



Honey Locust . . 

 Sweet Chestnut , 



Walnut 



Soft Maple .... 



No. of 

 Bushels. 



440 

 95 



175 



3 



6 



5-8 



13 



1^ 

 25 

 1 



Pounds 

 of Seed. 



300 



56^ 



10* 



Cost per 

 Lb. 



$6.74 

 2.94 

 4.45 



4.11 



2.25 

 1.75 



IV. Forest Pathology. . ^. 



(Report of Dr. J. H. Faull for 1921). 



Many interesting problems of forest pathology in Ontario have been called 

 into review during the last year, some in continuation of uncompleted studies, 

 others taken up in response to specific needs or inquiries. The field work was 

 carried on mainly in the Temagami Forest Reserve, where, as in the past, 

 valuable assistance was afforded by the Chief Ranger, Mr. C. E. Hindson. In 

 addition, visits were made to the hardwood area of Algonquin Park, to the 

 recently cut-over limits in the neighborhood of Otter, and to the pulpwood 

 district north of Temiskaming. A few days were spent at the request of the 

 Division of Forest Insects, Entomological Branch, Ottawa, in a co-operative 

 examination of pulpwood forests injured by the spruce bud worm, to discover, 

 if possible, what part fungi or other factors play in destroying the trees at- 

 tacked by this pest. I was associated in my work, for a part of the time, with 

 Mr. A. W. McCallum, B.Sc.F., Dominion Forest Pathologist, who was en- 

 gaged in the study of a root rot of living trees, caused by the honey agaric, 

 Armillaria mellea, an especially abundant form in our northern forests, and' 

 one which appears to be virulent in overcrowded stands or in trees much weak- 

 ened by needle blight, spruce bud worm attacks, or other injuries, and with 

 Mr. H. P. Bell, M.Sc, of Halifax, Nova Scotia, who was intimately concerned 

 with certain diseases of balsam. As a part of the field work, extensive addi- 

 tions were made to our reference collections of pathological materials. These 

 have likewise been considerably augmented by specimens sent in from various 

 parts of Ontario, and from outside places, especially the contiguous provinces 

 and states. 



(1) Needle Blight of White Pine. 



Observations for the fourth summer in succession, were made on the needle 

 blight of the white pine, and the conclusions stated in the Reports of the Min- 

 ister of Lands and Forests for 1919 and 1920 have been confirmed and extended. 

 This malady, a yellowing or reddening in late spring or early summer, of the 

 needles of the white pine, so prevalent in the Temagami Forest Reserve and 

 to some extent in other parts of Ontario, is due to a killing of the absorbing 



