期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 31, 期 3, 页码 449-454出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2010.01.003
关键词
Botanical insecticides; Insecticidal activity; Spodoptera littoralis; Tanacetum parthenium; Plant extracts; Supercritical fluid extraction; Essential oils
资金
- Ministry of Education, Youth and Sports [2806049]
CO2 extracts and essential oil obtained by hydrodistillation from feverfew aerial parts were applied to Spodoptera littoralis (Boisduval) larvae to examine their effects on mortality, antifeedancy and growth inhibition, and their composition of volatile substances was determined using GC. The mortality strongly correlates with the content of terpenoids in the samples, the lowest LD50 being for essential 011 (0.05 Wig) and SFE2 (0.11 mu l/g). The extracts obtained with CO2, pure or modified by acetone, at 280 bar and 50 degrees C were more efficient antifeedants and growth inhibitors than the essential oil alone, showing the combined effect of essential oil and non-volatile bioactive substances. (C) 2010 Elsevier B.V. All rights reserved.
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