Control of Tetranychus urticae Koch by extracts of three essential oils of chamomile,marjoram and Eucalyptus
Control of Tetranychus urticae Koch by extracts of three essential oils of chamomile,marjoram and Eucalyptus作者机构：Department of BiochemistryFaculty of AgricultureCairo University Departmetn of Zoology and NematologyFaculty of AgricultureCairo University
出 版 物：《Asian Pacific Journal of Tropical Biomedicine》 (亚太热带生物医学杂志（英文版）)
年 卷 期：2012年第2卷第1期
页 面：24-30页
学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 090403[农学-农药学(可授农学、理学学位）] 09[农学] 0904[农学-植物保护]
基 金：Supported by Cairo University Faculty of Agriculture Deptarment of Biochemistry Cairo Egypt
主 题：Tetranychidae Plant essential oils Enzymes Glutathione-S-transferase Non specific esterase Alkaline phosphatase Protease Chamomile Marjoram Eucalyptus
摘 要：Objective:To evaluate the acaricidal activity of extracts of three essential oils of chamomile,marjoram and Eucalyptwi against Tetranychus urtiaie(***.)***:Extracts of three essential oils of chamomile,marjoram and Eucalyptus with different concentrations(0.5%,1.0%,2.0%,3.0%and 4.0%)were used to control *** ***:The results showed that chamomile(Chamomilla recutita)represented the most potent efficient acaricidal agent against Tetranychus followed by marjoram(Marjorana hortensis)and *** LC_(50)values of chamomile,marjoram and Eucalyptus for adults were 0.65,1.84 and 2.18,respectively and for eggs 1.17,6.26 and 7.33,*** of enzymes including glutathione-Stxansferase,esterase(α-esterase andβ-esterase)and alkaline phosphatase in susceptible mites were determined and activities of enzymes involved in the resistance of acaricides were *** enzyme was significantly decreased at LC_(50)of both chamomile and marjoram compared with positive *** chromatography-mass spectrometer(CC-MS)proved that the major compositions of Chamomilla recutita areα-bisabolol oxide A(35.251%),and trans-3-farersene(7.758%),while the main components of Marjorana hortensis are terpincne-4-ol(23.860%),p-cymene(23.404%)and sabinene(10.904%).Conclusions:It can be concluded that extracts of three essential oils of chamomile,marjoram and Eucalyptus possess acaricidal activity against ***.
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