Optimizing the Application Date of Certain Antiviral Compounds to Control Watermelon Mosaic Virus in Squash | ||
| Assiut Journal of Agricultural Sciences | ||
| Volume 56, Issue 4, October 2025, Pages 183-196 PDF (1.03 M) | ||
| Document Type: Research papers | ||
| DOI: 10.21608/ajas.2025.393407.1500 | ||
| Authors | ||
| Hamada A. Farouk* 1; Fikry G. Fahmy1; Amal I. Eraky I. Eraky1; Osama A. Abdalla1; Ahmed M. Samy2 | ||
| 1Department of Plant Pathology, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||
| 2Higher Institute for Agricultural Cooperation and Extension, Assiut, Egypt. | ||
| Abstract | ||
| Squash plants are infected by the Watermelon mosaic virus WMV, which can cause severe losses in squash production. Traditional chemical control strategies do not lead to satisfactory outcomes. Thus, this study aimed to evaluate the efficiency of certain antiviral compounds (Quercetin, Acyclovir, and Chalcone) under greenhouse conditions to control WMV and to determine the best application date to maximize the efficiency of these chemicals to control WMV. In general, the early application of antiviral compounds resulted in grader reduction of WMV disease severity compared with the late application, as the disease severity was 30.2% and 42.67% for early and late applications, respectively, in the case of quercetin and 30.2% and 42.7% in the case of acyclovir and 30.2% and 39.5% for chalcone. Early applications also led to a significant increase in the total chlorophyll and carbohydrate contentsand increased the plant height and fresh and dry weight of squash plants compared with untreated plants. These results prove that the application of certain antiviral compounds is an efficient method to control WMV, and as early as these antiviral compounds were applied, the efficiency of these antivirals was increased | ||
| Keywords | ||
| Acyclovir; Antiviral; Chalcone; Quercetin; Watermelon mosaic virus | ||
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