72 Forests and Trees 



dollars, and the provinces of Ontario and Quebec, with 

 the co-operation of the Dominion government, are assist- 

 ing. Every effort is being made to locate any outbreaks 

 and prevent its spread. Forty inspectors are searching 

 for it in the Canadian provinces, and a strip of territory 

 one mile wide along the Ontario side of the Niagara River 

 has been entirely cleared of currants and gooseberries, 

 while a similar strip is likely to be cleared on the American 

 side. 



A suggestive feature of this campaign is the employment 

 of school children to locate the disease on the currants 

 and gooseberries. It can be easily detected at that stage, 

 and the children make good scouts. There are many 

 problems of real life which could in this way be brought 

 into the schools, making the school work more real and its 

 relation to life of the people closer. The problem of arous- 

 ing public interest in forest preservation is worthy of the 

 attention of teachers. 



This is not a place for a treatise on plant diseases or 

 insect pests. A few have been mentioned to show the 

 nature of the problems with which the forester has to deal. 

 It is not to be expected that every forest ranger, or even 

 every trained forester, is sufficiently familiar with these 

 matters to deal with them single-handed. They must 

 often call specialists to their aid. The entomologist, the 

 botanist and the plant pathologist must be consulted. 

 But the forest ranger should know healthy from diseased 

 trees and report any signs of injury from causes unknown 

 to him. He should keep the forest free from those con- 



