Abundance of Three Sap Sucking Pests on Three Eggplant Cultivars With Utilization of Phytoseiulus persimilis Athias-Henriot against Tetnlnychus urticae Koch | ||||
| Acarines: Journal of the Egyptian Society of Acarology | ||||
| Article 10, Volume 6, Issue 1, 2012, Page 49-53 PDF (3.77 MB) | ||||
| Document Type: Original research articles | ||||
| DOI: 10.21608/ajesa.2012.163627 | ||||
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| Authors | ||||
| Aziza M. Abou-Zaid1; E. M. Bakr1; Samia A. Yassin1; Neama A. Abdel Hameed2 | ||||
| 1Plant Protect. Res.Institute, (ARC). Dokki, Giza, Egypt | ||||
| 2Zoology Dept., Faculty of Science (Girls), Al-Azhar University | ||||
| Abstract | ||||
| Abundance and fluctuation of Tetranychus urticae Koch, Aphis gossypii Glover and Bemisia tabaci (Gann.) were studied on three eggplant cultivars (i.e. Baladi-White, Florida Market and Baladi-Black) during 2009 and 2010 successive seasons. T. urticae occurrence continued almost all the season and reached its maximum at the end of June or the beginning of July. A gossypii reaching the highest abundance in the middle of September while B. tabaci reached its maximum abundance at the end of July and first half of August. Variance in susceptibility among tested cultivars was recorded based on the abundance averages overall the two seasons. Florida Market, Baladi-White and Baladi-Black recorded the lowest abundance of T. urticae, A gossypii and B. tabaci, respectively. Phytoseiulus persimilis proved to be a good biocontrol agent against T. urticae at release ratios of 1 :5 and 1:10 predator : prey. A reduction appeared one week after release, generally it revealed 68.60 and 88.20 % mean reduction for both release ratios, respectively. | ||||
| Keywords | ||||
| Eggplant; Tetranychus urticae; Bemisia tabaci; Aphis gossypii; Phytoseiulus persimilis; Abundance and Biological control | ||||
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