« Previous AbstractOxidative Asymmetric Aza-Friedel-Crafts Alkylation of Indoles with 3-Indolinone-2-carboxylates Catalyzed by a BINOL Phosphoric Acid and Promoted by DDQ    Next AbstractTracing the trade-pollution nexus in global value chains: evidence from air pollution indicators »

Environ Sci Pollut Res Int

Title:		Oviposition deterrent activity of basil plants and their essentials oils against Tuta absoluta (Lepidoptera: Gelechiidae)
Author(s):		Yarou BB; Bawin T; Boullis A; Heukin S; Lognay G; Verheggen FJ; Francis F;
Address:		"Functional and Evolutionary Entomology, Agro Biochem Department, Gembloux Agro-bio Tech, University of Liege (ULg), Passage des Deportes, 2, 5030, Gembloux, Belgium. entomologie.gembloux@ulg.ac.be. Functional and Evolutionary Entomology, Agro Biochem Department, Gembloux Agro-bio Tech, University of Liege (ULg), Passage des Deportes, 2, 5030, Gembloux, Belgium. Analytical Chemistry, Agro Biochem Department, Gembloux Agro-bio Tech, University of Liege (ULg), Passage des Deportes, 2, 5030, Gembloux, Belgium"
Journal Title:		Environ Sci Pollut Res Int
Year:		2018
Volume:		20170807
Issue:		30
Page Number:		29880 - 29888
DOI:		10.1007/s11356-017-9795-6
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"The leafminer Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is one of the most important pests of tomato, reducing crop yields by up to 100% in greenhouses and fields, in several countries globally. Because synthetic insecticides lead to resistance and have adverse effects on natural enemies and the health of producers, alternative control methods are needed. In this study, we assessed the oviposition-deterring effect of basil plants, Ocimum gratissimum L. and O. basilicum L. (Lamiaceae), using dual-choice behavioural assays performed in flight tunnels. We found that both plants significantly reduced T. absoluta oviposition behaviour on a tomato plant located nearby. To evaluate the potential effect of basil volatile organic compounds, we formulated essential oils of both plant species in paraffin oil, and observed a similar oviposition-deterring effect. Gas chromatography analyses detected 18 constituents in these essential oils which the major constituents included thymol (33.3%), p-cymene (20.4%), gamma-terpinene (16.9%), myrcene (3.9%) in O. gratissimum and estragol (73.8%), linalool (8.6%), beta-elemene (2.9%) and E-beta-ocimene (2.6%) in O. basilicum. Twenty and 33 compounds were identified of the volatiles collected on O. gratissimum and O. basilicum plants, respectively. The main components include the following: p-cymene (33.5%), gamma-terpinene (23.6%), alpha-terpinene (7.2%), alpha-thujene (6.7%) and E-alpha-bergamotene (38.9%) in O. gratissimum, and methyl eugenol (26.1%), E-beta-ocimene (17.7%), and linalool (9.4%) in O. basilicum. Four compounds (alpha-pinene, beta-pinene, Myrcene, Limonene) were common in essential oils and plants. Our results suggest the valuable potential of basil and associated essential oils as a component of integrated management strategies against the tomato leafminer"
Keywords:		Acyclic Monoterpenes Alkenes/analysis/pharmacology Animals Bicyclic Monoterpenes Bridged Bicyclo Compounds/analysis/pharmacology Cyclohexane Monoterpenes Cymenes Female Lepidoptera/*drug effects/physiology Monoterpenes/analysis/pharmacology Ocimum/*chemis;
Notes:		"MedlineYarou, Boni Barthelemy Bawin, Thomas Boullis, Antoine Heukin, Stephanie Lognay, Georges Verheggen, Francois Jean Francis, Frederic eng Germany 2017/08/09 Environ Sci Pollut Res Int. 2018 Oct; 25(30):29880-29888. doi: 10.1007/s11356-017-9795-6. Epub 2017 Aug 7"