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during the year due to the persistent efforts in t he past and the regular
inspection of these areas for signs of evidence of re-infestation.
The average number of complaints received in a month was 52
compared with 62 last year.
In only three cases during the year has there been failure to
discover the source of infestation. These cases are, of course,
receiving regular attention.
Four major infestations have been dealt with and in three of
these the premises were found to be infested by both black and
brown rats. Details are as follows:—
(1) Badcock's Wharf, Banning Street.-Owing to the nature of the
merchandise stored, viz: barley, wheat and sugar, and to the frequent
movement of these goods, it was found difficult to effect a clearance.
Despite evidence of serious infestation normal poison baits were
ineffective and it was decided, with the consent of the Ministry, to
use "ANTU." Results were most satisfactory but periodical treatment
of the property is being continued.
(2) South Eastern Gas Board.—Complaint of rat infestation in
the Works Canteen revealed serious infestation outside. Ratproofing
in the Canteen was effected and the usual methods of
baiting and poisoning showed good results. The job of dealing
with the rest of the premises involved much investigation over a
large area. Black and brown rats were found in large numbers.
Final results obtained were most satisfactory.
(3) Robinson's Mills, Deptford Bridge.—At the request of the
owners, rodent control work at these premises was commenced in
December, 1949. Initial investigation revealed a major infestation
by black and brown rats both inside and outside the premises.
Extensive baiting was carried out along the river banks and jetties.
In addition, owing to the large quantities of animal feeding stuffs
in the premises, it was decided to use batteries of traps. These
methods are proving successful and are being continued. Over 100
rats have been trapped.
(4) Unit Construction Company.—This Company is engaged in
the erection of a large housing estate in the Kidbrooke area and
temporary hutments were erected for use as store-rooms and messrooms.
The Management notified us of the probable date of demolition
of these huts and treatments were carried out. So far only four
complaints have been received from this area and it would seem that
possible infestation has been prevented by the close co-operation of
the Company with this Department.
I would like to thank the Rodent Control personnel for the
excellent work performed during the year.