Reports to various Correspondents. 93 
GROUP F. 
A. ANIMALS WHICH CONCERN MAN AS BEING DE- 
STRUCTIVE TO HIS VARIOUS WORKS, BUILDINGS, 
LARGER CONSTRUCTIONS AND HABITATIONS. 
Leather-jacket Grubs causing damage at 
Rye Golf Links. 
The following communication was received in May from the 
Secretary of Rye Golf Club : — 
“ Professor A. D. Hall tells me that you will probably be able to 
recommend us what to do to prevent the ravages of a grub which 
has eaten the grass at two of the holes here. In hopes that you will 
help us, I am sending a few of the grubs in a tin box. I am told 
they are the grubs of the Daddy Long-Legs, and that we ought to put 
down rape dust or ‘ Homco.’ I have put down a small quantity of 
both as an experiment. The soil is very thin, on shingle, and of the 
nature of black sand. Two months ago the grass was very good, 
and now about six acres are nearly bare.” 
Professor A. D. Hall, writing on the same subject, suggests the 
possibility of corrosive sublimate worm -killer doing good. 
The following reply was sent to the Secretary, Rye Golf Club : — 
“ The larvae you send, that are eating off the grass at two of the 
holes at Rye Golf Links and which have bared six acres of grass, are 
those of one of the Daddy-Long-Legs ( Tipulidm) , one of our worst 
grass land pests owing to the difficulty in fighting them. They have 
now pretty well done the harm for this year. 
In this special case, I think rape dust will do good in drawing 
the larvae away from the grass roots, but of course it does not harm 
the grubs. As soon as the ‘ Daddy-Long-Legs ’ commence to appear 
I should heavily roll the land and bush-harrow it repeatedly ; by so 
doing many of the flies are unable to escape from the soil by the 
compression of the land, and many of those that do escape are killed 
and their eggs are destroyed by bush-harrowing. Around the holes 
you might make use of bisulphide of carbon. This may be injected 
into the soil at the rate of half an ounce to every four square yards 
for grass land. It will kill the grass just where it is put in but the 
fumes spread out around and soon kill subterranean insects and the 
fiuucb do not damage the roots ; except where the actual stuff comes 
