Regional Program 

 During 1954, silvicultural programs were conducted in the following 

 townships: Conger, Sherborne, McClintock. Wilkes, Biggar, and Sandy Island 

 on Lake Nipissing. The regional research office assisted the Divisions of 

 Timber Management and Reforestation in the planning and execution of these 

 programs and are presently occupied in the evaluation of this work. In general 

 terms, this silvicultural work includes application of herbicides; direct seeding; 

 planting of 1-0 seedling stock under brush, followed by a foliage application of 

 herbicides; study of the silvical characteristics of red spruce; growth studies 

 in pine following release; and scarification experiments in pine and birch forest 

 lands. 



SOUTH-WESTERN REGION 

 Several projects were undertaken during the 1955-56 fiscal year. 

 Most of the work was confined to silvicultural studies in the hardwood cover types 

 and to the use of silvicides in forestry. However, one project was confined to 

 pruning effects on Scotch pine Christmas trees. 



Silviculture 

 Silvics and Silviculture of Silver Maple 



The silver maple experiment which was started in the summer of 1953 

 was examined again in 1955. Diameters were taken on all live trees from 

 0. 6" d.b.h. and up, as well as a tally on the regeneration. A record was also 

 kept of the vegetation, as well as the condition of the trees poisoned for thinning 

 purposes in 1953. 

 Hardwood Growth Plots 



A number of permanent sample plots were established ten years ago by 

 District Forester I. C. Marritt in scattered woodlots throughout the Lake Huron 

 District. Fourteen of these came up for remeasurement in 1955. At the in- 

 stigation of the zone forester, it was decided to take not only the d.b.h. but also 



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