Effectiveness of using oils extracts of Peganum harmala and Rhanterium epapposum against Khapra beetle (Coleoptera: Dermestidae) and their chemical compositions
| Autor: | Zeinab Eltahir Bakheet Eltahir, Abdelhafiz Adam Dahab |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
biology Traditional medicine Trogoderma granarium General Engineering General Physics and Astronomy General Medicine biology.organism_classification Rhanterium epapposum 01 natural sciences General Biochemistry Genetics and Molecular Biology Dermestidae law.invention Terpene Peganum harmala Phytochemical law General Agricultural and Biological Sciences Medicinal plants Essential oil 010606 plant biology & botany |
| Zdroj: | Scientific Research and Essays. 14:68-73 |
| ISSN: | 1992-2248 |
| DOI: | 10.5897/sre2019.6621 |
| Popis: | Essential oils extracted from two medicinal plants Peganum harmala and Rhanterium epapposum native to the Arabian Peninsula specially Saudi Arabia, were evaluated for their larvicidal effects and emergence of Khapra beetle (Trogoderma granarium) adults. The oil analyzed by thin layer chromatography, the results of phytochemical analysis indicated that the presence of Alkaloids, flavonoids Triterpenes, Cumarins and Tannins in the two ethanolic extracts. The most abundant compounds were alkaloids and flavonoids. The essential oil of P. harmala showed toxicity against T. granarium third instar larvae with equivalent LD50 values of 23.5 μg/ml, when fed on treated seeds, with significant mortality rates up to 66% in three days. Whereas the toxicity effect was 49.7 μg/ml against T. granarium third instar, larvae contact treated surface. The essential oil of R. epapposum resulted into higher toxicity with LD50 values of 22.3 μg/ml with significant mortality up to 70% in three days. Comparing total mortality percentages of R. epapposum and P. harmala ethanoic extract on different treatments gives a good insight about their bioactivity. Key words: Insecticidal effect, oil extract, botanical insecticide, khapra beetle. |
| Databáze: | OpenAIRE |
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