Annual Report 1 jor 1889 of the Consulting Entomologist. 171 
These I duly reported on successively, but it seems worth 
observation that, as in the case of the Hessian fly, these newly or 
lately recorded arrivals were, with the exception of the plum borer, 
for the most part on, or near, the east coast of the island. 
Some very good information has been brought forward as to 
various proved and serviceable methods of prevention, notably with 
regard to checking clover-stein sickness as soon as the plants hare 
power of spring growth in them ; also with regard to the attack 
(which is sometimes excessively destructive) of turnip diamond- 
back moth. 
The subject of warble prevention has also very much advanced. 
With each succeeding year this has been more and more taken up 
by cattle owners and farmers, and now, in addition to the help given 
by many influential hide fii'ins, much is being also given by leading 
men in various Butchers' Associations drawing attention widely 
through England, Scotland, and Ireland, to the loss from this cause 
on meat, the importance of the subject, and the proved and easy 
remedies. I am in constant communication on the suhject. Steady 
distribution of the leaflets still continues, and I shall be happy to 
continue to forward them to all applicants interested in warble 
prevention who may apply to me. 
The work has now increased to such an extent that by devoting 
my whole time to it, and with the help of amanuenses at home, and 
(by correspondence) the skilled and well-known aid of Mr. Oliver E. 
Janson, F.E.S., in identification of " extra British," or previously 
undescribed specimens, I have (I believe) been able fully to attend 
to inquiry and consultation business, and most scrupulously to that 
belonging to my work as Entomologist to the Society. 
But there is a great deal of good work in the way of insect pre- 
vention experiments offered from time to time which I have not been 
able to take up, because the requisite co-operation in correspondence 
was more than I could possibly manage, and if any arrangement 
could be made by which I could give attention to these, it would be 
of very great agricultural service. 
With regard to further details, taking Hessian fly presence 
first : — 
During the past season, judging from reports sent to myself, 
Hessian fly attack appears to have done very little serious damage. 
One report was sent in of an attack on fifty-nine acres of barley, in 
which it was estimated that every fifth straw was broken down ; 
otherwise, although it appeared in some districts not previously re- 
ported as infested, and where it was noticed as very prevalent, yet 
damage was either usually not mentioned, or mentioned as not con- 
siderable. 
At the Royal Agricultural College, Cirencester, where it was 
exceedingly prevalent on wheat and barley, in the College grounds 
and neighbourhood, the loss was estimated not to exceed 4 per cent, 
in any case. At Revell's Hall, near Hertford (where the attack was 
first observed in England), although at threshing time infestation was 
found to have been present, from the large number of " flax-seeds " 
