679 



CHAPTER III. 



WHITE ROT.* 



White rot is distinguished from red rot by the colour of 

 the decomposing wood, which is of a whitish instead of a 

 reddish hue. It is commoner among hroadleaved species 

 (beech, hornbeam, maple, oak, chestnut, poplars, and willows) 

 than among conifers ; it is probably due to several causes 

 combined, but appears to be chiefly caused by fungi. White 

 rot is rarer than red rot, and its course less rapid. The 

 protective measures to be taken are similar to those against 

 red rot. 



* Books referred to under " Red rot." Also see p. 440 of the present work. 



