作者
Giovanni Benelli, Marimuthu Govindarajan, Mohan Rajeswary, Baskaralingam Vaseeharan, Sami A Alyahya, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Filippo Maggi
发表日期
2018/2/1
期刊
Ecotoxicology and environmental safety
卷号
148
页码范围
781-786
出版商
Academic Press
简介
The fast-growing resistance development to several synthetic and microbial insecticides currently marketed highlighted the pressing need to develop novel and eco-friendly pesticides. Among the latter, botanical ones are attracting high research interest due to their multiple mechanisms of action and reduced toxicity on non-target vertebrates. Helicoverpa armigera (Lepidoptera: Noctuidae) is a key polyphagous insect pest showing insecticide resistance to several synthetic molecules used for its control. Therefore, here we focused on the rhizome essential oil extracted from an overlooked Asian plant species, Cheilocostus speciosus (J. Konig) C. Specht (Costaceae), as a source of compounds showing ingestion toxicity against H. armigera third instar larvae, as well as ovicidal toxicity. In acute larvicidal assays conducted after 24 h, the C. speciosus essential oil achieved a LC50 value of 207.45 µg/ml. GC and GC …
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G Benelli, M Govindarajan, M Rajeswary… - Ecotoxicology and environmental safety, 2018