236 



COCOA 



CHAP 



(Kamerun), and Asia (Ceylon, Java, Samoa), 

 is the so-called ...... 



On the Antilles, and in Surinam and 

 perhaps also in other countries, severe losses 

 are caused by a fungus which kills the 

 branches and the stem .... 



In Java the branches are sometimes 

 attacked by a fungus which covers them with 

 a whitish or reddish overgrowth and eventu- 

 ally kills them ...... 



In Dominica and St. Lucia a similar dis- 

 ease due to an allied fungus has been ob- 

 served , . . 



In Trinidad, Grenada, and St. Lucia a 

 fungus is found, having the appearance of a 

 tuft of horse-hair caught in the branches 



Another fungus, which covers the branches 

 and leaves with a cobweb-like overgrowth, 

 has been recorded from the West Indies, 

 Kamerun, Ceylon, and Java 



" Canker " (PkytopUliora 



Faberi). 



"Die-back" (Diplodia 

 cacaoicola). 



" Djamoer oepas " (Corti- 

 cium javanicuni). 



" Pink disease " (Gorticium 

 lilacino-fuscum). 



" Horse - hair blight" 

 (Marasmius equicrinu*). 



" Thread blight ; ' or 

 " Cobweb-fungus " (Stil- 

 bella liana ?). 



B (2). Diseases of the Stem and Branches caused by Insects. 



Here the large group of borers has to be 

 mentioned first. In every cocoa-growing 

 country the cocoa tree is attacked by borers, 

 larvae of beetles, or caterpillars, which bore 

 into the branches and the stem and cause 

 great damage. There are a great many 

 different kinds of borers. In the West Indies 

 and Surinam the most common one is the 

 larva of a beetle . . . . 



In Java much damage is done by the 

 larvae of the small beetle .... 



Other borers are also found in Java, but 

 they are of less importance than the Glenea ; 

 they are . 



titeirastoma depressum. 

 Glenea novemguttata. 



The last mentioned is also found in Kamerun, 

 while less common is in Java the very large 

 larva of the beautiful beetle 



Pelargoderns bipunctatus 

 and Monohammus fistu- 

 lator. 



Catoxantha bicolor. 



