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Biological-Activity Of Cassia-Occidentalis L Against Callosobruchus-Maculatus (F) (Coleoptera, Bruchidae)
Lienard, V.; Seck, D.; Lognay, Georges et al.
1993In Journal of Stored Products Research, 29 (4), p. 311-318
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Keywords :
Callosobruchus maculatus (F.); Cassia occidentalis L.; biological activity; stored cowpea seeds; traditional method control; Vigna unguiculata (L.) Walp
Abstract :
[en] In developing countries, traditional control methods are commonly used against stored-product insects and mites. In Senegal, the leaves of Cassia occidentalis L. (Caesalpiniaceae) are used to protect cowpea seeds (Vigna unguiculata L. (Walpers)) against Callosobruchus maculatus (Coleoptera: Bruchidae). The biological activity of the leaves, the seeds and oil of C. occidentalis was evaluated in controlled conditions (28 ± 2°C, 45 ± 5% r.h.) against C. maculatus. At the rate of 10% (w/w), both fresh and dry leaves as well as whole and ground seeds had no contact toxicity on the cowpea beetle. In contrast, seed oil induced an increase in mortality of C. maculatus eggs and first larval instar at the concentration of 10 ml/kg cowpea. The basis of the ovicidal and larvicidal activities are discussed in this paper. Several trials using pure compounds have highlighted that several fatty acids (linoleic, oleic and stearic) are responsible for C. occidentalis toxicity. C. occidentalis seed oil did not reduce the oviposition of C. maculatus at 10 ml/kg seed.
Disciplines :
Entomology & pest control
Chemistry
Author, co-author :
Lienard, V.
Seck, D.
Lognay, Georges ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
Gaspar, Charles ;  Université de Liège - ULiège > Immunologie et vaccinologie
Severin, M.
Language :
English
Title :
Biological-Activity Of Cassia-Occidentalis L Against Callosobruchus-Maculatus (F) (Coleoptera, Bruchidae)
Publication date :
1993
Journal title :
Journal of Stored Products Research
ISSN :
0022-474X
Publisher :
Elsevier, United Kingdom
Volume :
29
Issue :
4
Pages :
311-318
311–318
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 September 2015

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