47 



cases ihoy were so abundant that the leaves died oil", ]eavii:<; the 

 young t'offee trees without any fohage whatever. In a neighboring 

 phmtation alx)ut 10 aeres of young coffee trees are now ahnost entirely 

 leafless. Hand picking has been tried, and in the month of May it 

 was ])eliev(>d to have met witli success, until a few weeks later a new 

 ami highly increased attack did away with all liopes to control the 

 evil by hand picking. It -is further observed that the better the 

 soil the less the plants suffer from the attack. In the older planta- 

 tions it seen.s that the parasites of the leaf miner, Chi-i/socharis liiida 

 Ashm., are sufficiently al)undant to keep the evil under control. 

 Artificial increase of the parasites might give very valual)le results. 



Some old coffee trees were observed on which the knaves had turned 

 to a reddish color, followed by the trees dying. Leaves of .such trees 

 were sent to Washington for examination, where it was found to be a 

 fungus, Colletotrickum copeanum, probabh- appearing after an attack 

 of leaf miner. The attacked trees had been already destroyed before 

 information from Washington was received, and no remedies were 

 tried. 



In about 50 acres of heavily shaded old coffee (PI. VII. fig. 2) 

 near Juana Diaz a disease causing the kernels of the fruit to decay 

 and tundng the twigs black was found. Sam})les of attacked twigs 

 and berries were also sent to Washington for investigation, but as yet 

 the cause of the trouble is unknown. 



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