362 
Remedial and Preventive Measures. 
It is of the utmost importance to detect the first brood, 
and report is immediately. The greatest mistake that can 
he made is to allow the insect to increase and report the 
disease at the third brood. At a small cost, and befoie 
much damage has been caused to the trees it can be stop p ed 
during the first brood, while if allowed to increase for thr e 
consecutive broods it is next to impossible t? ,P r ^ e nt fur- 
tlier ravages. Kerosine Emulsion was found to be ia 
more effective than London Purple, although I am unable 
to state what quality of London Purple was used, tinder 
am circumstances spraying with kerosine emulsion l has i the 
additional advantage of killing the scale insects with which 
the coconut trees in the Federated Malay States aie so fie- 
quentlv infected. 
The solution was as follows: — 
Kerosine 2 gallons. 
Water 1 gallon. 
Soap { lb. 
Dissolve the 1 lb. soap in the 1 gallon of water by beat- 
ing When thoroughly dissolved add water slowly while 
boiling hot to the- kerosine Churn trough y inr 10 
minutes while and after adding water. Dita.i nth 10 
parts of water when cool. , , .„ th 
If this mixture is applied by a sprayer to the .ees b. th 
the larvae and the scale insects present on the coconut trees 
will be killed. With large broods a considerable amount 
of good may he done with coconuts ol 5-7 years of age by 
killing the moths. They may be caught m thousands m 
butterfly nets by sweeping the nets a ong the edges ° ' 
leaves. This must be done before the eggs are laid It 
will further reduce the next brood if the time of the egg lay - 
hig is carefully watched and when the eggs ye found in- 
structions should he given to the coolies to cut off the tips 
(for about a yard) of the lower coconut leaves. The cut 
portions of the leaves may be made into small piles where 
the heat of the sun will soon dry them and prevent the 
young larvae from maturing. .11 
‘ The most important object however should be to detect 
the first appearance of this pest and it must be reported 
Immediately if the best and most effective results are 
sought. 
