AN EVALUATION OF TWO TOMATO CULTIVARS TO INFESTATION BY CERTAIN INSECT PESTS | ||
| Journal of Plant Protection and Pathology | ||
| Article 5, Volume 6, Issue 3, March 2015, Pages 499-512 PDF (257.11 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jppp.2015.53332 | ||
| Authors | ||
| Y. E.Y. Abdallah; Hana S.A. Faraj | ||
| Department of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt | ||
| Abstract | ||
| Field experiments were carried out to investigate the seasonal abundance and population dynamics of certain tomato pests viz.; tomato whitefly, Bemisia tabaci (Gennadius), aphids (cotton aphid, Aphis gossypii Glover and green peach aphid, Myzus persicae Sülzer), potato leafhopper, Empoasca decipiens Paoli and tomato leafminer, Tuta absoluta (Meyrick) and evaluate the susceptibility of two tomato cultivars (Hybrid Super Strain BF1 and Super Crystal HYB) to the infestation with these pests as a major component of the integrated pest management in clean and organic agriculture that rationalize the unwise use of pesticides and accordingly producing safe food. Obtained results revealed that B. tabaci had 2-3 peaks of abundance during summer seasons 2012 & 2013 on both cultivars. Aphids and E. decipiens had 1-2 peaks each season. On the other hand, T. absoluta had only one peak during both seasons. Data also revealed the presence of negative and highly significant correlation between the population densities of all investigated pests and the numbers of non-glandular hairs on tomato leaves. The effect of nitrogen and calcium on all investigated pests was positive and highly significant; while the effect of potassium was negative and highly significant. The effect of phosphorus was positive and highly significant on all sap sucking pests on the cultivar Crystal HYB; while magnesium had positive and highly significant effect on the investigated pests on the cultivar Hybrid Super. The effect of iron, zinc and manganese was positive and highly significant and cupper was negatively affected these pests on both cultivars. | ||
| Keywords | ||
| Bemisia tabaci; Aphis gossypii; Empoasca decipiens; Tuta absoluta; seasonal abundance; susceptibility; trichomes; Nutrients | ||
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