FLOUR MOTH. 
57 
as we were over a week at the process, and were delayed in the placing 
of our machinery. The Board of Health visited us in a body during 
the time this process was going on, and pronounced it a success. This 
was all done not only in our own interests, as was pointed out in a 
letter of the 20th September from Dr. Bryce, but in the interests of 
the public health and commerce of the country. 
“ Having now got to the position which enables us to go to work 
again after two months’ loss of time, and the loss of machinery, 
fixtures, stock, and expense, we have arranged for remedial measures 
to prevent the reappearance, or destruction of the pest should we ever 
be again attacked. We have erected a steam standpipe, with hose or 
other connection, on each flat of the mill-building. By shutting up 
all doors and windows of each flat and turning on steam simultaneously 
to each floor, the whole building can be filled with hot live steam 
sufficient to kill anything. This will rust all bright parts of the 
machinery, but to remedy this we intend using oil on them should we 
ever be under the necessity of resorting to the measure. 
“ Another purpose of this steam standpipe will be, in cold weather, 
to let on sufficient steam to moisten everything, and part of the 
building at night, and then throw open the windows for the night, 
and let the frost penetrate so as to kill any eggs or insects that may 
have become lodged in unseen parts. 
“ By these measures, with plenty of light, thorough cleanliness, a 
cold mill, and caution in taking in stock and old bags, we hope to keep 
free of a pest which has given us so much trouble and loss.”* 
Fumigation and Cautions to be observed .—The use of sulphur and 
other kinds of fumes may be turned to very good account in lessening 
the amount of infestation, at least for the time being; but it should 
be borne in mind that these fumigations must be given with careful 
consideration as to amount used in given space, or, where the mills 
are also used as stores, much injury may be caused to the flour 
standing in sacks. 
On this subject I was favoured, on the 8th of June, with the 
following letter from the owner of some large steam mills which were 
b adly infested :— 
“ During the months of April and May, we have on several occasions 
fumigated the mill with sulphur, as recommended in your Beport for 
1888, on each occasion being more or less successful in destroying the 
moths, which have during this warm weather especially infested the 
place. We started first of all with one fire in the bottom of the 
* Report previously referred to, being ‘ Bulletin I. of Provincial Board of Health 
of Ontario. The Flour Moth, Ephestia kiihniella .’ Issued by the Ontario Depart¬ 
ment of Agriculture. 
