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Cause of infestation at the 326 premises found to
be infested during the year.
Keeping of poultry etc, 110.
Accumulations of refuse or debris 8.
Harbourage under or in garden sheds etc, 90.
Defective drains, 5,
Inside premises (under floors etc) 86.
Buries in gardens etc. 62.
Source, untraced. 3.
364.
Type of premises cleared Methods employed in clearing
of rats or mice. the 312 premises of rats or mice.
Dwelling-houses (mainly Poison baits. 296.
in gardens) 265. Trapping, 41.
Poodshops and food Gassing, 14.
premises, 28 Rat & Mouse proofing, 3.
Non-food shops and stores, 11. Drains repaired. 5.
Factories & workplaces. 2. other means, 5,
Offices. 1,
Refuse Tips. 2.
Miscellaneous. 3.
312, 364.
B. SEVERS TREATMENT.
(1) 10% TEST.
A test beiting of 10% of the soil-sewer manholes
in the Borough was completed on the 27th September, 1947.
The test was carried out in relationship with the previously
recorded surface rat infestations in the District. Very little
evidence of any connection between surface end sewer infestations
was revealed by the test.
The Borough was divided into five sections and the
results were as follows:-
SECTION.
NUMBER OF
MANHOLES
BAITED.
COMPLETE
BAIT:
TAKES.
PARTIAL
BAIT
TAKES.
NO BAIT
TAKES.
A.
25
5
2
18
B.
60
1
-
59
C.
50
14
—
36
D.
47
9
2
36
E.
18
8
1
9
TOTAL.
200
37
5
158
(2) INITIAL SEVER TREATMENT.
An initial treatment of the sewers found to be infested
as the result of the 10$ test baiting was completed on
the 16th November, 1947. Only those sections of sewers found to
be infested during the 10% test were baited.
Pre-baiting with damped sausage rusks was carried out on
two consecutive days, and the same bait base with 2½% Zinc
(23)