167 
indicate that the latter fungus is either saprophytic or only com- 
pletes destruction commenced by Pcstalozzia. The spread of this 
disease is accomplished by wind and ram, and therefore, besides 
making every effort to keep the cocoa-nut trees healthy and vigorous 
by improved cultural methods, all Sources of infection should be 
removed, as they may be the cause of considerable damage during 
an unfavourable season. 
The following remedial measures are recommended : — 
( a ) All dead trees should be cut down and, with diseased leaves, 
etc , should be destroyed, preferably by fire. 
' (6) Isolated trees that show signs 0 of disease should be marked, 
carefully watched, and all leaves that become attacked cut 
• out and burned. 
(c) All plants in the diseased area should, as a preventive, be 
sprayed repeatedly with Bordeaux mixture, particular atten- 
tion being given to the younger leaves. 
Bud-rot Disease. 
A bud-rot disease was noticed in isolated cases in the Cedros 
district, and had apparently caused the, death of many palms on a 
savannah in the Siparia district. 
The cause of the trouble is somewhat obscure. The roots and 
* stem of the palm appear to be quite healthy, while the bud is in- 
volved in a vile-smelling soft rot. In one instance, a fungus was 
present in the advancing margin of the diseased part, but generally 
bacteria were the only organisms present. Three kinds of bacteria 
were noticed, and two of them had preyiously been found in trees 
that were suffering from other causes. On no bccasion could it be 
established, with certainty, how the bacteria gain an entrance, or 
whether they are the primary cause of the trouble. 
In the Siparia district the spread of the disease was very rapid ; 
but it is probable that more careful attention to cultivation, etc., and 
prompt destruction of all diseased material would tend to keep this 
disease well in hand. 
Finally it must be urged that in dealing with the diseases of cocoa- 
nuts, the adoption of remedial measures must be carried out 
systematically by all interested in cocoa-nut cultivation ; for, by co- 
operation of the planters in this matter, it would be possible to check 
the diseases and probably to eradicate them. 
{Agricultural News y West Indies), VoL VI, No. 12J, p. 75. 
BIBLIOGRAPHY. 
Notes on Rubber Cultivation by Lieut.-Col. Wyllie 
and O. G. Ferreira. 
This little book was originally compiled for publication in 
Portuguese only but an English edition has been brought out by 
Col. Wyllie, formerly in charge of the Rubber plantations in 
