Diseases 265 



Before leaving this question of coco-nut 

 palm diseases, we would like to endorse what 

 Mr. Stockdale said in his (1906) report regard- 

 ing- the possibilities of reducing or eliminating 

 disease by the introduction of disease-resisting 

 varieties. "Where fungus has completely 

 devastated large areas," he tells us, "the trees 

 should not be allowed to stand and rot, for that 

 would only be a nursery for the development 

 and spread of the disease. Whilst in badly 

 infected districts it would appear as if all 

 varieties are attacked, if every coco-nut planter 

 would note the comparative resistance of the 

 different varieties, considerable advance in the 

 direction of introducingand propagating disease- 

 resistant palms might soon be made. Several 

 planters state that a variety known as the 

 4 Green Spanish ' is very hardy, and able to 

 withstand attack much longer than other 

 kinds." 



OTHER PESTS. 



"The West Indian Pamphlet" No. 70 

 reports the following : 



SUCKING INSECTS. 



Bourbon aspidiotus Aspidiotus destructor. 

 Coco-nut snow scale Diaspis boisdnvalii. 

 Coco-nut mealy-bug Pseudococcus nipcz. 

 Glassy star scale Vinsonia st el lifer a. 

 Black line scale Ischnaspis longirostris. 

 White fly Aleyrodicus cocois. 



