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minate the rodents by means of gassing with 'Cymag' gas,
baiting with red squill, arsenic, zinc phosphide and by trapping.
There is no serious infestation, but the presence of rats
and mice is still being reported from all over the district
particularly where houses are situated near open spaces such
as farm and forest land.
Baiting and poisoning of the Council's sewers was carried
out twice during the year with the following results:—
Manholes baited 193 128
Pre-bait (part takes) 55 5
(complete takes) 52 15
Poison (part takes) 35 11
(complete takes) 16 —
Dead rats picked up — —
The poison and bait bases used were as follows:—
1st treatment— Sausage rusk
2½% Zinc Phosphide.
2nd treatment— Bread mash
10% Arsenic.
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