166 PLANTING IN UGANDA 



blackish appearance. According to Fetch, fruits 

 that are attacked become shrivelled and split, and 

 rot on the tree. The fruit suffers most in very 

 wet seasons. 



The same fungus also attacks the stem and 

 fruit of Cacao, and indeed its distribution as a 

 disease on this tree is far more general than has 

 been recorded for Hevea. For this reason, it is not 

 wise to grow the two mixed, as one plant will 

 communicate it to the other, and thus the chances 

 of loss are multiplied. Its presence on Cocoa 

 amounts to a certainty. 



Diseased fruit should be collected and burned. 

 In the West Indies it was found that one source 

 of infection, and the principal one in many plan- 

 tations, was the accumulation of heaps of fruit 

 husks, which were simply teeming with the 

 Phytophthora. 



Pink Fungus Disease 



(Corticium salmonicolor.) 



This fungus has other names, such as Corticium 

 javanicum, Corticium Zimmermannii, etc. It 

 attacks many different kinds of trees, including 



