62 



Mr. Belgrave said he would certainly advise such if the disease 

 in the place did not exist badly. 



Mr. Jakvis then enquired whether burning of the timber did not 

 do more harm than good. 



Mr. Belgrave suggested that burning of the timber in pits 

 be adopted as it had proved very successful on some estates. 



Anotlier question asked was did the cutting of roots when 

 clearing timber damage the trees. 



Mr. Belgrave was of the opinion that the cutting of a few 

 laterals was not of great importance especially if tar was applied. 



Mr. Pinching commenting on the carbolinium solution of 20 per 

 cent, thought it did some damage and recommended not more than 

 10 per cent. In regard to Mr. Ellis's remark that pink disease 

 should be caught up early enough, he said that that was the trouble, 

 as the disease was not seen until it was too late, and the bark was 

 dead by then. He had heard from the Mycologist in Ceylon that 

 black line canker was not known there, and he thought some 

 explanation was, therefore, necessary in regard to the allusion to 

 that disease being found in Ceylon. 



Mr. Pinching also asked Mr. Belgrave as to what depth he 

 considered stumping should be carried out when thinning out. 



Mr. Belgrave said that two feet should be sufficient. 



Mr. Harrison asked whether timber in peat was liable to cari-y 

 infection. 



Mr. Belgrave replied that one estate on peaty land had 

 suffered badly from root diseases. 



Mr. Coombs called attention to flat land and hilly land in their 

 relation to disease. Leaf pruning in America and other countines 

 was not veiy much advocated. 



Another member said that he had noticed trees of seven or eight 

 years old suffer from pink disease. On one occasion Mr. Shai'ples 

 (the mycologist) and he had examined a large plantation of three- 

 and four-year old trees and found no cases of the disease, but three or 

 four years later he found the disease amongst the then young trees, 

 which seemed to show that the old trees got the disease first, there 

 having been no kampong within a mile of the place. If they said 

 that old rubber was less liable to attack it might make planters 

 neglect their old trees, and that would do more harm than good, 



Mr. Richards, referring to Mr. Belgrave's remarks regarding 

 Fomes, said it was possible to cure a very large number of cases 

 by looking for the disease by clearing the soil from roots in the case 

 of ti'ees one to five years old and painting with copper sulphate and 

 lime wash. 



