| Autor: |
Wakil W; Department of Entomology, University of Agriculture, Faisalabad 38040, Pakistan.; Senckenberg German Entomological Institute, D-15374 Müncheberg, Germany., Kavallieratos NG; Laboratory of Agricultural Zoology and Entomology, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece., Eleftheriadou N; Laboratory of Agricultural Zoology and Entomology, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece., Asrar M; Department of Zoology, Government College University, Faisalabad 38000, Pakistan., Yaseen T; Department of Entomology, University of Agriculture, Faisalabad 38040, Pakistan., Tahir M; Ministry of National Food Security and Research, Islamabad 44000, Pakistan., Rasool KG; Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia., Husain M; Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia., Aldawood AS; Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia. |
| Abstrakt: |
The deterioration of stored wheat due to pest infestations is a significant concern, with pests like Rhyzopertha dominica , Tribolium castaneum , Cryptolestes ferrugineus , Sitophilus oryzae , Oryzaephilus surinamensis , and Trogoderma granarium being major contributors. This study examined the efficacy of spinosad and alpha-cypermethrin, individually and in combination, against these pests under laboratory conditions. Spinosad was tested at two concentrations (0.05 and 0.1 mg/kg), while alpha-cypermethrin was applied at 0.05 mg/kg. The combined application of both insecticides led to significantly higher pest mortality compared to single treatments. Importantly, all treatments caused substantial pest mortality and exhibited the ability to suppress pest progeny production over time, as observed in both laboratory and persistence trials. Among the various treatment combinations, the joint application of 0.1 mg/kg spinosad and 0.05 mg/kg alpha-cypermethrin emerged as the most effective, resulting in elevated mortality and a marked reduction in pest progeny. Rhyzopertha dominica exhibited the highest susceptibility among the pests, followed by S. oryzae , T. castaneum , C. ferrugineus , O. surinamensis , and T. granarium . The remarkable performance of the joint action of alpha-cypermethrin and spinosad at low doses highlights this combination as an efficacious approach for safeguarding stored grain against these destructive insect pests, warranting further exploration. |
