TOXICOLOGICAL STUDIES ON SOME NATURAL PLANTS IN NORTH SINAI AGAINST SITOTROGA CEREALELLA LARVAE | ||||
| Sinai Journal of Applied Sciences | ||||
| Article 11, Volume 6, Issue 2, August 2017, Page 193-202 PDF (549.56 K) | ||||
| DOI: 10.21608/sinjas.2017.78785 | ||||
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| Authors | ||||
Marwa O. Fathy  1; Rania E. El-Araby2; Yousry M. Ahmed3
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| 1Arish Univ., Egypt. | ||||
| 2Dept. Environ. Protec., Fac. Environ. Agric. Sci., Arish Univ., Egypt. | ||||
| 3Dept. Plant Protec., Fac. Agric, Suez Canal Univ., Ismailia, Egypt. | ||||
| Abstract | ||||
| Laboratory experiments were conducted under controlled conditions (28±2°C and RH. 65±5) to test the efficiency and toxicity of aqueous and organic extracts of nine natural plants collected from North Sinai (oleander, Nerium oleander L.; lemon, Citrus limon L.; rue, Peganum harmala L.; colocynth, Citrullus colocynthis; yarrow, Achillea santolina L.; artemisia, Artemisia monosperma L.; buckthorn, Anabasis articulata L.; camphor, Cinnamomum camphora L.; and tree tobacco, Nicotina glauca G.), against the 1st –instar larvae of the Angoumois grain moth Sitotroga cerealella(olivier). The results showed that the aqueous extract of Citrus limon L. gave the highest toxicity with LC50 (29× 10-4ppm) and Achillea santolina L. gave the lowest value of LC50(4033× 10-4ppm). Methyl alcohol extract of C limon gave the highest value of LC50 (2×10-4ppm) and A santolina gave the lowest value of LC50(607× 10-4ppm). The same trend was found in acetone extract of C limon where it gave the highest value of LC50(35×10-6ppm), while A articulata gave the lowest LC50(4033× 10-4ppm) against the tested insect. | ||||
| Keywords | ||||
| Sitotroga cerealella; toxicity; mortality; oleander; lemon; rue; colocynth; yarrow; artemisia; buckthorn; camphor; tree tobacco; LC50 | ||||
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