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36
Rodent Control - Destruction Methods in Use,
The following methods were used either singly or
in combination:- Poison baits; Traps; Gassing (Cyanide).
Poisons. Basis of Baits.
1. Zinc Phosphide. 1. Sausage Rusk.
2. Arsenic. 2. Stale Bread.
3. Red Squill. 3. Condemned Food
4. Cymag (Cyanide). (if suitable).
The approximate number of rats involved in an infestation
is calculated from the amount of bait taken, according to
a formula based on scientific investigation. It is obvious
that this can be but a rough guide, but it is a useful basis
on which to work.
Statistical Statement - Year 1947.
Private Dwellings.
Number of premises inspected 155.
" " visits 753.
Business Premises.
Number of premises visited 122.
„ „ visits 2786.
Total number of Premises Inspected and Visits during 1947:-
Number of Visits - Private Dwellings 908
- Business Premises 2908
3816
Prom the results achieved, and the known costs,it is
clear the action of your Corporation in authorising the
extension of the work has proved to be fully justified.
It would appear that the nett cost to the local authority is
comparatively small, in spite of the fact that private
dwellings have been treated free of cost since the end of
March, 1947.
6. INSECT PEST CONTROL.
This comparatively new feature of departmental
activity consists, in the main, of treatment of food premises
and large buildings such as blocks of flats for the eradication
of cockroaches, steam flies, beetles, etc.
This service fills a much wanted need and is run in
conjunction with rodent control work with the same staff for
both services.
7. RAG FLOCK ACTS.
A special reference was made to the subject of rag
flock and other bedding and upholstery fillings in my Report
for the year 1946, and no apology is needed for again
referring to this subject.
It will be remembered that at the end of 1946, the
British Standards Institution had under consideration specifications
for several types of fillings, and also prescribed
tests for cleanliness.