Variations in the Susceptibility of Some Potato Varieties to Infestation with Certain Piercing Sucking Insect Pests at Different Nitrogen Fertilization Levels in Assiut Area | ||
| Assiut Journal of Agricultural Sciences | ||
| Volume 55, Issue 1, January 2024, Pages 90-100 PDF (444.05 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2024.243554.1302 | ||
| Authors | ||
| Mohamed I. Mohamed1; Reda M. Saba* 1; Ahmed I. Farghal2; Abdel-Wahab M. Ali2; Youssef A. Darwish2 | ||
| 1Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Assiut 71524, Egypt. | ||
| 2Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut, 71526 Egypt. | ||
| Abstract | ||
| Field experiment was conducted at Assiut area during the recommended sowing season 2021 to evaluate the relative susceptibility of three potato (Solanum tuberosum L.) varieties, Cara, Spunta and Burren to aphid, Myzus persicae (Sulzer), jassid / leaf hopper, Emposca discipiens (Paoli), whitefly, Bemicia tabaci (Gennadius) and thrips, Thrips tabaci (Lindeman) infestation at three different nitrogen fertilization rates (60, 120 and 240 kg N/fed.). Results indicated that the varieties showed high significant difference in their susceptibility to certain piercing sucking insect pests. The infestation increased by increasing the rate of nitrogen. The highest numbers of aphis, jassid, whitefly and thrips were recorded at nitrogen level 240 kg/fed.,Where the populations was high at this rate as compared to the lower nitrogen rates, as well as control. In general the rate of infestation of sucking pests was high in Cara cultivar at the double recommended nitrogen fertilization rate. | ||
| Keywords | ||
| Potato varieties; Nitrogen fertilization; Piercing sucking insects | ||
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