Amel B Hamouda, Ikbal Chaieb, Khaoula Zarrad, Asma Laarif


Methanol extracts of the seeds and leaves of Solanum elaeagnifolium were tested in laboratory conditions for their insecticidal activities against larvae and adults of the red flour beetle Tribolium castaneum. Insects were exposed to two extracts by topical application and ingestion. Highest mortalities were recorded on larvae treated with seeds extract. Moreover, seed and leaf extracts have a strong anti-feeding activity against the larvae. While the leaf extract showed a low anti-feeding activity against adults. Furthermore, a repellent effect was observed after two hours of exposure to the methanolic extracts. Thus, the treatment of the botanical insecticide may be promising in protecting stored grains from coleopteran pest attacks.


Insecticidal activity, methanol extract, treatment method, Solanum elaeagnifolium, Tribolium castaneum

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