REPORT OF THE HORTICULTURIST 127 



SESSIONAL PAPER No. 16 



40 gallons water), it is quite likely that the plum pockets may be prevented by its use 

 also. The most important spraying would appear to be just before the flower buds 

 open, and as soon as the petals fall. It may be said that in the orchard at the Experi- 

 mental Farm, where the trees are thoroughly sprayed every year, there has been no 

 plum pocket, and in another orchard of native plums near Ottawa which is well 

 sprayed each year there are few plum pockets ; whereas, in the vicinity trees along the 

 roadside have been badly affected. In addition to spraying, it is recommended to cut 

 back the trees which are affected, thus removing the diseased twigs; also to pick off 

 the pockets as soon as they appear. 



FOREST BELTS. ^ 



The work in the forest belts at present consists mainly in recording the height 

 and diameter of the different kinds of trees, of preventing some of the more valuable 

 species from being smothered in the mixed plantations by the faster growing species, 

 and by lopping off branches and the removing of dead and fallen trees. The last table 

 showing the height and diameter of the trees was published in the report for 1906. 

 The table which follows shows the growth up to the autumn of 1908. Owing to the 

 dry weather of the past two seasons the increase in height and diameter of most kinds 

 of trees has been small. 



