“228 THE ENEMIES OF COFFEE :—WHITE GRUB. 
problem—-they come out at night, and, after sporting 
about for an hour or so, settle down to feed; they are 
partial to the leaves of jack, plantain, and many kinds of 
_jungle trees, but jack is their especial favorite. Where- 
ever trees other than coffee and cinchona are grow- 
ing on an estate that has had a visitation of grub, 
they should be examined (after 8 p.m.), and if the 
beetles are found on them they should be shaken off 
into a large cloth spread for that purpose; this plan 
had been tried by one of the committee with success. 
Tt was suggested that if the beetles feed on jungle 
trees, as no doubt they do on some kinds, what would 
be the benefit of catching those that feed on the trees 
growing in estates, as a swarm from the jungle trees 
‘would come down and deposit their eggs in the more 
warm and congenial soil of the estates. This, how- 
ever, is only a surmise, and should not prevent the 
attempt to destroy those we can; and as every female 
lays from 30 to 50 eggs, the gain would b2 immense 
if the hundreds of thousands of beetles that are to 
be found from February to April could be got rid of. 
II. Water and a floating lght. One of the com- 
mittee said that he had hung a lighted lantern on a 
pole, for two nights, in the centre of a dam, and that 
the only catch was ten rhinceros beetles; he had also 
put a basin of water and a light over it, within a few 
yards of a tree where the cackchafers were flying about 
in hundreds, and and only caught five in three hours ; 
this certainly was not encouraging and did n't pay for 
“the candle. This plan might answer on open pataunas ; 
but it was thought not lkely to succeed in the coffee. 
The sense of the meeting was, however, in favour 
of applyimg some substance or substances to the ground, . 
that by its smell or poisonous properties would be 
distasteful or destructive to insect life; and if of a 
manurial nature so much the better. Amongst others, 
‘lime and sulphur,” ‘‘ gas lime,” ‘‘ sulphate of copper,” 
and, as suggested by Mr. Agar, ‘‘ corrosive sublimate,”’ 
were mentioned as worth a trial. The distance that 
water would often have to be carried, and the large 
quantity that would have to be used, might prevent 
the ‘‘ sulphate of copper” and ‘‘ corrosive sublimate ”’ 
being much used; but in favourable localities they 
should receive a fair trial. The Committee regret they 
are unable to suggest any other or more effective means, 
but would strongly urge upon all who can do so, the 
trying of one or other of these proposed remedies, as 
may best suit their circumstances. It was mooted by 
some that grub never attacked the same portions of an 
estate, or even the same estate two years in succession ; 
how far this is true we know not, but if there is truth 
