Chemical composition and toxicity of Moroccan Tetraclinis articulata and Juniperus phoenicea essential oils against Aphis citricola Goot, 1912 (Homoptera, Aphididae)

Chemical composition and toxicity of Moroccan Tetraclinis articulata and Juniperus phoenicea... Aphids cause significant damage tp crops, particularly citrus. To combat these pests, farmers typically use synthetic pesticides, yet these pesticides leave negative impacts on the environment. In an effort to find new efficient forms of control against aphids, especially Aphis citricola, without causing damage to the environment, we evaluated the toxicity of essential oil from the leafy twigs of Tetraclinis articulata and Juniperus phoenicea. Essential oil extraction was performed by steam distillation, and chemical composition was analyzed by gas chromatography–mass spectrometry (GC–MS). Thirty-six components were identified in the essential oil from T. articulata. Isobornyl acetate (58.32 %), α-pinene (9.31 %), and camphor (9.23 %) are the main components of this oil. For J. phoenicea, forty-seven compounds were identified; α-pinene was the major compound at 48.18 %, followed by δ-cadinene (6.61 %). Each of the essential oils we tested showed some degree of toxicity against A. citricola. This toxicity is amplified with concentration and time, and varies between plant species. Ultimately, the essential oil extracted from J. phoenicea’s leafy twigs was the most toxic (54.03 μL/L after 24 h) against A. citricola; its compounds may therefore be considered as new biodegradable agents to control aphids and viable for use in an integrated pest management program. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Chemical composition and toxicity of Moroccan Tetraclinis articulata and Juniperus phoenicea essential oils against Aphis citricola Goot, 1912 (Homoptera, Aphididae)

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Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2528-5
Publisher site
See Article on Publisher Site

Abstract

Aphids cause significant damage tp crops, particularly citrus. To combat these pests, farmers typically use synthetic pesticides, yet these pesticides leave negative impacts on the environment. In an effort to find new efficient forms of control against aphids, especially Aphis citricola, without causing damage to the environment, we evaluated the toxicity of essential oil from the leafy twigs of Tetraclinis articulata and Juniperus phoenicea. Essential oil extraction was performed by steam distillation, and chemical composition was analyzed by gas chromatography–mass spectrometry (GC–MS). Thirty-six components were identified in the essential oil from T. articulata. Isobornyl acetate (58.32 %), α-pinene (9.31 %), and camphor (9.23 %) are the main components of this oil. For J. phoenicea, forty-seven compounds were identified; α-pinene was the major compound at 48.18 %, followed by δ-cadinene (6.61 %). Each of the essential oils we tested showed some degree of toxicity against A. citricola. This toxicity is amplified with concentration and time, and varies between plant species. Ultimately, the essential oil extracted from J. phoenicea’s leafy twigs was the most toxic (54.03 μL/L after 24 h) against A. citricola; its compounds may therefore be considered as new biodegradable agents to control aphids and viable for use in an integrated pest management program.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Mar 28, 2016

References

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