Research Article

Chemical composition of Vitex agnus-castus L. (Verbenaceae) essential oil and its larvicidal effectiveness on Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae) larvae

Volume: 44 Number: 4 December 31, 2020
TR EN

Chemical composition of Vitex agnus-castus L. (Verbenaceae) essential oil and its larvicidal effectiveness on Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae) larvae

Abstract

In this study, the chemical composition of the essential oil obtained from chaste tree (Vitex agnus-castus L.) (Verbenaceae) was analyzed by gas chromatography-mass spectrometry (GC-MS) and its larvicidal effectiveness at 250, 500 and 1000 μL/L, and 24, 48, 72 and 96 h against the five instars of the pine processionary moth, Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae) investigated. The study was conducted at Muğla Sıtkı Koçman University (Fethiye A.S.M.K. Vocational High School) under laboratory conditions (25±2ºC, 65±5% RH and 14:10 h L:D photoperiod) in 2015-2017. Each larvicidal effectiveness test was repeated three times. β-caryophyllene (16.8%), germacrene D (14.7%), 1,8-cineole (14.5%) and ζ-gurjunene (11.8%) were identified as main compounds of the essential oil. Ninety-six h after treatment, the essential oil caused between 13.3 and 96.6% mortality. The highest mortality at 250, 500 and 1000 μL/L doses were 70.0% for L1, 80.0% for L3 and 96.6% for L1, L3 and L4 instars after 96 h, respectively. It was concluded that the V. agnus-castus essential oil has potential as an alternative for control of T. pityocampa larvae.

Keywords

Thanks

Authors thank Mohamed Said Omar (Ondokuz Mayıs University), translator and native English speaker, for his contribution in revising the English of this article; and also, Yahya Nas (Muğla Sıtkı Koçman University) for his technical assistance and contributions to the study.

References

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Publication Date

December 31, 2020

Submission Date

April 28, 2020

Acceptance Date

September 13, 2020

Published in Issue

Year 2020 Volume: 44 Number: 4

APA
Varçin, M., & Kesdek, M. (2020). Chemical composition of Vitex agnus-castus L. (Verbenaceae) essential oil and its larvicidal effectiveness on Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae) larvae. Turkish Journal of Entomology, 44(4), 437-447. https://doi.org/10.16970/entoted.728613

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