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Control of rat damage in stored foodstuffs. 1. A comparative study of two coumarin derivatives.

IR@CSIR-CFTRI

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Title Control of rat damage in stored foodstuffs. 1. A comparative study of two coumarin derivatives.
 
Creator Pingale, S. V.
Muthu, M.
 
Subject 05 Insect/Pest Control
 
Description THE annual losses of stored foodstuffs are
estimated at several million tons in India due
to rat damage. Methods usually recommended
to control the damage are trapping and baiting
of rats, both of which have their limitations.
As regards trapping it is found that rats soon
learn the dangers of the trap. Further, trapped
rats instead of being destroyed are sometimes
'et loose some distance away, which only
aggravates the problem. As regards baiting, in
Which minimal doses of quick acting raticides
are used, it is found that rats soon develop a
"bait shyness" which also renders this method
ineffective.
The recently developed anticoagulants
(coumarin derivatives) have introduced a
shift in our present day ideas of raticides.
The efficacy of the method is based on continuous
administration of sub-lethal doses of
the chemicals over a period of several days.
This is claimed to prevent b a it shyne ss.
Kruif (7) observed that rat colonies could be
wiped out in 15 days by the administration of
warfarin, a coumarin derivative. According to
Hays and Gaines (6), warfarin could prove a
valuable weapon for permanent rat control even
where rat-proofing is not possible. Reiff and
Wiesmann (8) found that minute doses of
tomorin, another derivative of coumarin, were
sufficient to kill a rat within 6-7 days by
contact poisoning and that complete control of
rats in a given locality was possible with it.
The results of a study of the efficacy of these
chemicals against the species of rats commonly
encountered in this country, the extent of
success possible under natural conditions and
the possibilities of contamination of foodstuffs
with these chemicals are given in this
paper.
 
Date 1953
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/3616/1/Bulletin_of_CFTRI_1953_2_9_232-236.pdf
Pingale, S. V. and Muthu, M. (1953) Control of rat damage in stored foodstuffs. 1. A comparative study of two coumarin derivatives. Bulletin of Central Food Technological Research Institute, 2. pp. 232-236.