of weeds, and a report prepared and mimeographed for distribution to the 

 nurseries of the Department. 



Culling and Grading of Nursery Stock 

 The third and final planting of white spruce, both shippable and cull, 

 from the Orono, Midhurst and St. Williams Nurseries was made in the fall of 

 1955. A count of mortality of the 1954 planting was taken. In co-operation 

 with the Statistics Section, study was continued of the results of the survival 

 of the 1953 planting, in an effort to correlate survival with the six measure- 

 ments taken of.every tree. This computation work, assisted by IBM comp- 

 tometry systems, will continue for some time. It is not proposed to proceed 

 with studies of other species until the results of this experiment are fully 

 understood. 



Root and Top Pruning Treatments of White Spruce 

 In the sprir^ of 1955, an experiment was established near Powassan, 

 with 2-2 white spruce from the Midhurst Nursery. This material had been 

 given several degrees of single and repeated root and top prunings during the 

 previous year. At the time of planting, a further treatment with a commercial 

 rooting hormone was introduced. The effect of these treatments upon survival 

 was obtained in a count taken in the fall of 1955, but effect upon growth will 

 not be obtainable for a few years. An interim report on the effects on survival 

 is planned for 1956. 



Polyethylene Packaging Experiment 

 In the spring of 1955, a small experiment was planted in Algonquin Park 

 to compare Burlap, Kraft, and Polyethylene as the wrapping materials for bales 

 of nursery stock. Unfortunately the extremely dry weather of the summer 

 caused almost complete mortality and no results were obtainable from the plant- 

 ing. It is planned to repeat this experiment, with some modifications, in 1956. 



