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Hassan, M., Soliman, Z., Dawoud, S. (2005). EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae ). Journal of Plant Protection and Pathology, 30(1), 611-621. doi: 10.21608/jppp.2005.238588
M. F. Hassan; Z. R. Soliman; Sherry S. Dawoud. "EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae )". Journal of Plant Protection and Pathology, 30, 1, 2005, 611-621. doi: 10.21608/jppp.2005.238588
Hassan, M., Soliman, Z., Dawoud, S. (2005). 'EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae )', Journal of Plant Protection and Pathology, 30(1), pp. 611-621. doi: 10.21608/jppp.2005.238588
Hassan, M., Soliman, Z., Dawoud, S. EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae ). Journal of Plant Protection and Pathology, 2005; 30(1): 611-621. doi: 10.21608/jppp.2005.238588

EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae )

Article 3, Volume 30, Issue 1, January 2005, Page 611-621  XML PDF (447.11 K)
Document Type: Original Article
DOI: 10.21608/jppp.2005.238588
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Authors
M. F. Hassan1; Z. R. Soliman1; Sherry S. Dawoud2
1Faculty of Agriculture, Cairo university,Giza,Egypt.
2Plant Protection Research Institute, Agric. Res. Center, Dokki, Egypt.
Abstract
The efficiency of  five plant water extracts namely Red pepper, Pomegranate, Lupine, Shihh and Garlic were studied against different stages of the phtyophagous mite Tetranychus urticae koch. Egg stage was more tolerant to all plant extracts than protonymph and adult female. The LC50 values were 10.36, 9.38, 19.32, 23.95 and 52.45% for the egg stage compared with 1.16, 2.87, 5.87, 20.28 and 12.18% for the protonymph and 2.75, 4.82, 8.66, 3.53 and 15.45% for the adult female when treated by the mentioned plant extracts, respectively. The biological aspects of T. urticae were affected by treating eggs and adult female with LC50 value of the five plant extracts. In egg treatment, hatchability was decreased while incubation period of eggs as well as life cycle were prolonged. After adult treatment, life cycle was prolonged and the female fecundity was decreased. The female longevity was shortened. Pomegranate was the most effective ovicide, while the Red pepper was the most effective extract against protonymph and adult female. A plastichouse experiment was conducted to evaluate the five plant extracts for control of the two-spotted spider mite T. urticae population. The percentages of reduction after 3,7,15 and 21 days from treatment with LC25, LC50 and LC90 were 48.7, 74.6 and 75.7% for Red pepper extract; 61.0, 64.5 and 42.2% for Pomegranate extract; 49.9, 62.8 and 64.7% for Lupine extract; 33.4 , 36.2 and 38.4% for Shihh extract; 38.6, 53.8 and 76.7 % for Garlic extract.
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