Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis
K. Abd-Elhady, H., S. El-Zahi, E. (2011). Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis. EKB Journal Management System, 32(JULY- SEPTEMBER), 337-345. doi: 10.21608/asejaiqjsae.2011.2637
Hany K. Abd-Elhady; El-Zahi S. El-Zahi. "Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis". EKB Journal Management System, 32, JULY- SEPTEMBER, 2011, 337-345. doi: 10.21608/asejaiqjsae.2011.2637
K. Abd-Elhady, H., S. El-Zahi, E. (2011). 'Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis', EKB Journal Management System, 32(JULY- SEPTEMBER), pp. 337-345. doi: 10.21608/asejaiqjsae.2011.2637
K. Abd-Elhady, H., S. El-Zahi, E. Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis. EKB Journal Management System, 2011; 32(JULY- SEPTEMBER): 337-345. doi: 10.21608/asejaiqjsae.2011.2637

Composition and Acaricidal Activities of Rosmarinus Officinalis Essential Oil against Tetranychus urticae and Its Predatory Mite Phytoseuilus persimilis

Alexandria Science Exchange Journal
Article 7, Volume 32, JULY- SEPTEMBER - Serial Number 3, September 2011, Page 337-345  XML PDF (495.34 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2011.2637
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Authors
Hany K. Abd-Elhady1; El-Zahi S. El-Zahi2
1Department of Pesticides, Faculty of Agriculture, Menoufiya University, Shebin El-Kom 32511, Egypt.
2Department of Pesticides Testing, Plant Prot. Res. Inst., Dokki, Giza, Egypt.
Abstract
Searching for pesticidal activity of plant extracts with some known medicinal attributes could lead to the
discovery of new agents for pest control. The essential oil (EO) was extracted from aerial parts of Rosmarinus officinalis by hydrodistillation method and tested for its toxicity against adult females of two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) and its predatory mite Phytoseuilus persimilis Athias-Henriot (Acari: Phytoseiidae) under laboratory conditions. Exposure periods were 24, 48, and 72 h. The results indicated that adults of T. urticae were more susceptible to EO( LC50 ranged from 10.70 to 17.30 ml/L) than P. persimilis (LC50 ranged from 28.05 to 42.09 ml/L). Laboratory bioassay results indicated that the EO caused high mortality of spider mites with high fumigant and repellent activities. EO with the highest used concentration (10%) caused no phytotoxicity to some host plants of T. urticae (greenhouse-grown cotton, bean, tomato and cucumber). The chemical composition of hydrodistilled essential oil of R. officinalis was identified through GC/MS. The main constituents of the oil were 1,8-cineole (39.74%), camphor (22.76%), cis-ocimene (8.89%) and camphene (7.01%) which may provide the acaricidal properties against T. urticae. Results of the present study suggested that Rosmarinus officinalis entiaessl oil could be useful in promoting new agents for mite control from the medicinal plants.
Keywords
Rosmarinus officinalis; essential oil; Acaricidal activity; Phytoseuilus persimilis; Tetranychus urticae; Chemical composition
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