this brood may be circumvented or destroyed so that a 
spring brood cannot appear from it. 
A less expensive method of attracting the flies is the 
use of what is called “ bait,” that is, sowing some narrow 
strips of wheat to attract the flies, and ploughing this in 
with the eggs and maggots; hut for ourselves the plan 
arranged by Mr. G. Palmer on his farm of Revell’s Hall, 
near Hertford, appears best of all as costing little or 
nothing, and meeting all purposes. 
Mr. Palmer showed me that on his worst infested 
barley field, which was bare at the root, he had allowed 
all the self-sown barley to sprout; thus it was ready for 
attack of all the flies which were hatching, or might be 
hatching, out of the “ flax-seeds.”* When the time was 
passed the plant was to be fed off by sheep, which would 
eat the leaves with eggs on them, and any maggots 
which had effected a lodgment in the centre of a plant 
too far down to be bitten out would be effectually killed 
by the subsequent ploughing coming in regular course 
of operations. 
The above refers to where stubbles are left; where 
they have been cut high so as to leave the infested part 
standing on the field it is probably the best plan at once 
to skim and collect the stubble and burn it, but from the 
practical difficulties in the way of carrying out this 
high cutting, and the amount of loss entailed, it does 
not seem likely to be carried out. 
Deep ploughing directly after cutting of stubbles 
which have been infested would turn any “flax-seeds” 
which had been shaken out well under, so that the flies 
from them, even if they did hatch out, could not make 
their way to the top. Where there is clover or seeds it 
does not seem possible to do anything relatively to 
attack that may very likely recur on the self-sown 
* Nov. 1st, 1886. During the last few days specimens have been sent 
from these plants, and shoots from old plants infested with Hessian Fly 
puparia in various stages, from white condition just passing from larval 
state up to regular “ flax-seed.” This shows that the puparia found in 
the corn-stems in August, or a portion of them, do hatch out their flies 
in this couutry, and confirms the need of every precaution. —E. A. 0. 
