Insecticidal activity of some Asteraceae plant （杀虫活性的菊科植物）.pdf

Bulletin of Insectology 61 (2): 283-289, 2008 ISSN 1721-8861 Insecticidal activity of some Asteraceae plant extracts against Tribolium confusum 1 2 3 2 3 Olfa BOUSSAADA , Monia BEN HALIMA KAMEL , Samia AMMAR , Dalila HAOUAS , Zine MIGHRI , Ahmed 1 Noureddine HELAL 1Genome, diagnostic and Valorisation, Faculty of Pharmacy, Monastir, Tunisia 2Laboratory of Entomology, High School of Horticulture and Animal Production, Chott Mariem, Tunisia 3Laboratory of Natural Substances Chemistry and Organic Synthesis, Faculty of Science, Monastir, Tunisia Abstract Sixteen aromatic plant extracts from three species belonging to the Asteraceae family, were obtained by using organic solvents of increasing polarity. They were tested for insect growth inhibition, contact toxicity and antifeedant activity against adults and lar- vae of confused flour beetle Tribolium confusum du Val (Coleoptera Tenebrionidae). Discs made of wheat were incorporated with a single dose of 1% of different extracts. The antifeedant effect, larval growth inhibition and mortality were evaluated in multiple- choice tests. Responses varied with plant-derived material extract, stage of insect and exposure time. Larval growth inhibition was significantly induced by methanolic and ethyl acetate extracts of Mantisalca duriaei Briq. et Cavill. and petroleum ether, chloro- formic and methanolic extracts of Rhaponticum acaule DC. Antifeedant properties were detected in methanolic extracts of M. duriaei and R. acaule, petroleum ether and chloroformic extract of R. acaule and ethyl acetate extract of M. duriaei . Sc