Optimizing Grasshopper Pest Management: A Comparative Study of Insecticides in Bahariya Oasis and Dakahlia | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 1, Volume 16, Issue 8, August 2025, Page 391-396 PDF (467.06 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2025.402004.1358 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
S. M. Said   1; E. Soltan1; M. Kh. El-Dydamony2
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| 1Locust and Grasshopper Department, Plant Protection Research Institute Agricultural Research Center, Dokki, Giza, Egypt | ||||
| 2Locust and Grasshopper Department, Plant Protection Research Institute Agricultural Research Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| Grasshoppers are among the most destructive agricultural pests globally, causing significant crop losses and threatening food security, particularly in regions like Egypt. This study comprehensively assessed the field efficacy of seventeen insecticides against significant grasshopper populations, particularly, Euprepocnemis plorans plorans, Charpentier, 1825 (Orthoptera: Acrididae), across two distinct Egyptian agricultural regions: Bahariya Oasis (Giza Governorate) and Dakahlia Governorate. The research systematically compared the performance of fast-acting chemical groups, including pyrethroids and avermectins, with slower-acting insect growth regulators (IGRs). Results demonstrated that pyrethroids (Kafrothrin, Lamdathrin, Alphazed, Cyperco) achieved rapid and near-complete mortality (97-99.8%) within 48 hours in both locations, highlighting their critical role for immediate pest suppression during acute outbreaks and rapid crop loss mitigation. The avermectin class (Benomect, Speedo, Excellent) also exhibited robust and persistent residual activity, yielding high mortality rates (91-93.4%) after 48 hours. In contrast, insect growth regulators (Scorch, Kafroseil) displayed a characteristic delayed effect, with their efficacy gradually increasing to approximately 45% mortality after 6 days, consistent with their mode of action disrupting insect development. Minor regional variations, such as slightly higher initial efficacy in Bahariya Oasis, potentially linked to lower humidity, influenced immediate compound performance. These findings decisively affirm the crucial role of pyrethroids and avermectins for grasshopper control. Concurrently, they underscore the strategic importance of integrating IGRs into integrated pest management (IPM) programs for sustainable, long-term population regulation and effective resistance management. This research refines localized IPM strategies, balancing rapid control with ecological sustainability, and contributes to global efforts in mitigating pesticide resistance and environmental impact. | ||||
| Keywords | ||||
| Control; Insecticides; Grasshoppers; Egypt | ||||
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