190 



PYTHIUM DISEASE OF GINGER, TOBACCO AND PAPAYA 



cotton wool. After 48 hours the effect of the fungus was seen. TBe wetting 

 and softening of the tissues round the seat of inoculation and the exudation of 

 the latex later on were quite characteristic. Penetration of the hyphse takes 

 place through any part of the plant. The mycelium was seen in the wood 

 tissues and pith. The inner tissues became discoloured brown, and soft. 

 A moist atmosphere greatly helps the spread of the fungus. 



Table III. 

 Inoculations with strain isolated Jrom papaya. 



