Comparative Evaluation of Green Pesticides Techno Oil and Berna Star vs. Malathion: Impact on Contact Toxicity, Reproduction, and Antifeedant Activity in Trogoderma granarium Everts (Fam: Dermestidae) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 2, Volume 15, Issue 4, April 2024, Page 119-125 PDF (942.8 K) | ||||
| Document Type: Original Article | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Walaa M. Alkot; Amal M. Hamza; A. M. Abouelatta   ; E. A. Negm
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| Stored Grain and Product Pests Research Department, Plant Protection Research Institute, Agriculture Research Center, Giza 12611, Egypt | ||||
| Abstract | ||||
| Regarding to growing environmental concerns and the need for sustainable pest management strategies, the evaluation of alternative pest control agents assumes critical significance. This study investigates the impact of two environmentally friendly green pesticides, Techno oil and Berna star, on the Khapra beetle (Trogoderma granarium), a notorious pest of stored grains, in comparison to the conventional chemical pesticide, Malathion. The contact toxicity revealed that all tested compounds exhibited significant efficacy against Khapra beetles. For adults Malathion had the strongest effect with LC50 of 0.91 mg/kg followed by techno oil and Berna star with LC50 values 2369.2 and 3486.8 mg/L, respectively after 48 h of exposure using thin film technique. Contact toxicity of tested pesticides increased as the exposure time increased. All tested compounds reduced F1 progeny of Khabra beetle. Techno oil had the highest reduction effect on adults of khabra beetles with 100% reduction at a concentration of 5000 mg/kg, while Berna star and Malathion achieved 71.25% reduction at concentrations of 5000 mg/kg and 8 mg/kg, recpectively. For weight loss percentages, Malathion application resulted in 3.40% weight loss at the highest concentration (8 mg/kg), followed by Techno oil with 6.80% at the highest concentration of 5000 mg/kg, while Berna star application resulted in 8.10% weight loss in grain weight at the same concentration of Techno oil. This study provides valuable insights into the effectiveness of green pesticides as viable alternatives to chemical pesticides in the context of Khapra beetle control. | ||||
| Keywords | ||||
| Stored-product insects; integrated pest management; Trogoderma granarium; contact toxicity; antifeedant activity | ||||
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