Publications Scientifiques

[ Article ] Ovicide and Larvicide Activities of the Essential Oils Extracted from Polyalthia longifolia and Clausena anisata on Sitotroga cerealella

Date de soumission: 31-01-2018
Année de Publication: 2017
Entité/Laboratoire Laboratoire d'Etude et de Recherche en Chimie Appliquée (LERCA)
Document type : Article
Discipline(s) : Agriculture & Agronomie
Titre Ovicide and Larvicide Activities of the Essential Oils Extracted from Polyalthia longifolia and Clausena anisata on Sitotroga cerealella
Auteurs ADJALIAN Elvis [1], ALITONOU GUY ALAIN [3], NOUDOGBESSI Jean Pierre [4], SESSOU PHILIPPE [2], KOSSOU Dansou [5], MENUT Chantal [6], Sohounhloue Dominique [7],
Journal: OnLine Journal of Biological Sciences
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 17
DOI: 10.3844/ojbsci.2017.193.200
Resume This work has objectives to study the chemical composition o f volatile extracts obtained from leaves of Polyalthia longifolia and Clausena anisata and to evaluate their ovicide and larvicide effects by fumigation against Sitotroga cerealella , as alternative to the pesticides of synthesis. The analyses of the extracts by GC-MS showed that the essential o il of P. longifolia contains 57 compounds representing 86.1% of oil and 26 compounds corresponding to 97.3% of the essential oil of C. anisata . The main compounds identified for the extract of P. longifolia are the β- Caryophyllene (24.5%), Allo-Aromadendrene (13.5%), the α-Z ingiberene (9.4%), the α-Humulene (8.5%) and the α-Selinene (2.6%). Th e extract of C. anisata mainly composed of methyl chavicol (69.9%) is characterized by the presence of oxygenated monoterpens (1.4%), hydrogenated monoterpens (7.8%), hydrogenated sesquiterpens (16.2%), oxy genated sesquiterpens (1.7%) and of aromatic compounds (69.9%). The b iological test results showed that the treatments by fumigation done w ith the essential oils reduce meaningfully (p<0.001) the bursting of the ovums on the paddy rice. The essential oil of C. anisata has completely inhibited the viability of the larvas and the emergence of adult butterflies from the dose 0.5 μl mL − 1 contrary to P. longifolia that recorded respectively 10.0±0.3% and 50.0±0.2% at the strong dose 3 μl mL − 1 . The study has, otherwise, shown that the essential oils delayed th e cycle of development “ovums to adult” of S. cerealella (29.0±0.4 to 35.4±0.5 days) in relation to the witness (25±0.1 days). The essential oil of C. anisata proved to be more poisonous for the juvenile stages of S. cerealella . These results provide the scientific basis for potential alternat ives to the synthetic fumigants in subsistence and commercial agriculture. OnLine Journal of Biological Sciences Original Research Paper Ovicide and Larvicide Activities of the Essential Oils Extracted from Polyalthia longifolia and Clausena anisata on. Available from: https://www.researchgate.net/publication/320170491_OnLine_Journal_of_Biological_Sciences_Original_Research_Paper_Ovicide_and_Larvicide_Activities_of_the_Essential_Oils_Extracted_from_Polyalthia_longifolia_and_Clausena_anisata_on [accessed Jan 31 2018].
Mots clés Polyalthia longifolia, Clausena Anisata, Ovicide, Larvicide, S. Cerealella, Fumigation, Essential Oil
Pages 193 - 200
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