CANE SUGAR. 



In Fig. 73 is shown from a photograph (after Lewton-Brain) canes 

 attacked by this fungus, revealing the characteristic white spot in the centre of 

 the red coloration, and in Fig. 74- the spores of this fungus. 



FIG. 73. 



7. Pine-apple Disease.* 5 Thielaviopsis ethaceticus* Went. The Ananas 

 or Pine-apple disease is, like the last-mentioned, a wound parasite, and its 

 favourite place of attack is the exposed ends of cuttings for seed cane ; fully 

 grown cane is rarely affected. When a cutting is attacked, the interior 

 at first becomes crimson red and then black, at the same time giving off a 



* See note in Appendix. 

 148 



