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Repellent and oviposition-deterring activity of Rosemary and Sweet Marjoran on the spider mites Tetranchychus urticae and
Authors:F. Momen, H. Abdel Rahman, E. Samour, S. Aly and S. Fahim
., Refaat A. M. and Momen F. M. (2001a): Repellent and oviposition — deterring activity of rosemary and sweet majoram on the spider mites Tetranychus urticae and Eutetranychus orientalis (Acari: Tetranychidae). Acta Phytopathol. et Entomol. Hung. 36, 155
Authors:H. HUSSEIN, M. ABOU-ELELlA, S. A. A. AMER and F. M. MOMEN
Two parts of the plant
Capparis aegyptia, leaves and fruits, were extracted successfully with 4
different solvents. These solvents namely n-hexane, diethyl ether, ethyl
acetate and ethanol. These extracts were tested for their toxicity against eggs
and adult females of the two-spotted spider mite, Tetranychus urticae Koch.
Extracts of both parts of the plant, prepared from various solvents were
affected the behavior, toxicity and fecundity of females under laboratory
conditions. Ethyl acetate extract of leaves and fruits was the most potent
extract tested against eggs and adult females of T. urticae. In contrast,
ethanol extract of fruits was the least effective extract against both tested
stages. The egg stage was less susceptible to most different extracts of both
parts of C. aegyptia. Leaf discs treated with LC50 concentration of various
extracts showed a high percentage of repellency in case of ethanol extract from
leaves and fruits (86.67 and 96.42%), respectively. Treated females with LC50
concentration of different extracts showed a higher remarkable percentage of
mortality as well as a reduction in the total number of eggs laid during 15
days with fruit extracts than that with leaves extract.
Amer, S. A. A., Refaat, A. and Momen, F. M. (2001): Repellent and oviposition-deterring activity of rosemary and sweet marjoram on the spider mites Tetranychus urticae and Eutetranychus orientalis (Acari: Tetranychidae). Acta Phytopath. et Entomol
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Authors:F. M. Momen, S. A. A. Amer and A. M. Refaat
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Authors:F. M. Momen, M. M. Abdelkader and S. F. Fahim
scoparia essential oil (Araliales: Apiaceae) and blends of its major constituents against Tetranychus urticae (Acari: Tetranychidae) . J. Econ. Entomol. 104 , 1220 – 1228 .
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