Some of Bio-Alternatives as Growth Enhancers for Seedlings and Controlling Leafminer in Citrus Nurseries | ||
| Horticulture Research Journal | ||
| Volume 3, Issue 7, September 2025, Pages 41-58 PDF (1.19 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/hrj.2025.463912 | ||
| Authors | ||
| Hussein S. Ahmed1; Sahar A. Attia2; Seham, M. El-Mahdy2; Y. E Afia2 | ||
| 1Horticulture Research Institute, Agricultural Research Center, Giza, Egypt. | ||
| 2Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt. | ||
| Abstract | ||
| In citrus nurseries and orchards, the citrus leafminer, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae), is a major and dangerous pest of citrus that severely damages the new leaf. In this respect, experiment was conducted under green-house in the citrus nursery of Horticulture Research Institute, Giza, Egypt. During two seasons (2021-2022) to examined the effect of four bio-alternatives were used viz; Lemongrass essential oil, Aquaprimo, Spinosad and Abamectin at 0.5 cm/L concentrations individual against citrus leaf miner infestation on enhance the growth, profitability of seedlings and increase grafting success percentage of sour orange (C.aurantum) rootstock in nurseries. Percent population infestation of citrus leafminer was recorded before the application and after 24, 48, and 72 hrs of spray. The gathered results indicated a significant increase in all evaluated parameters of leaf area, number of leaves / seedling, leaves and shoots dry matter percentage, percentage of increase in both seedling stem (length and diameter), grafting success percentage, leaf pigments contents, and mineral content of leaves as compared with the control. Moreover, the peak leafminer infestation occurred from the beginning of May to the end of September. An optimum result was obtained from the Lemongrass essential oil at 0.5 cm/L concentration in this study. In order to manage and reduce citrus leafminer infection on citrus nursery seedlings, lemongrass essential oil is advised. | ||
| Keywords | ||
| Citrus leafminer; lemongrass essential oil; Aquaprimo; Spinosad and Abamectin | ||
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