TY - JOUR T1 - Combining Residual Contact Insecticides with Long-Lasting Insecticide-Treated Nets to Limit Dispersal and Damage by Stored Product Insects A1 - Sofia Almeida A1 - Bruno Teixeira A1 - Mariana Lopes JF - Entomological Research Letters JO - Entomol Res Lett SN - 3108-639X Y1 - 2025 VL - 5 IS - 2 DO - 10.51847/iLj0wz4tnt SP - 15 EP - 29 N2 - Long-lasting insecticide-incorporated netting (LLIN) serves as a physical and chemical barrier to insects and has demonstrated potential for pest suppression in both pre- and post-harvest agricultural contexts. Incorporating LLIN into existing integrated pest management (IPM) strategies, alongside standard approaches such as residual contact insecticides, could strengthen pest control in food storage facilities. This study investigated whether LLIN (0.34% alpha-cypermethrin, BASF) could enhance the performance of residual contact insecticides, including Centanyl EC (deltamethrin, Central Life Sciences) and Evergreen (natural pyrethrins, McLaughlin Gormley King Co.), against Tribolium castaneum and Rhyzopertha dominica. We assessed adult movement and offspring production under five treatments: LLIN alone, each insecticide alone, LLIN combined with insecticide, and an untreated control. The combination of LLIN with either deltamethrin or pyrethrins reduced adult dispersal toward food sources compared to controls, although the reduction in progeny production was modest (8%–19%). LLIN alone strongly suppressed T. castaneum progeny by 40%. Pyrethrins by themselves had limited impact on adult mortality or offspring numbers, but their efficacy increased when used together with LLIN. These results suggest that integrating LLIN with residual contact insecticides can offer incremental benefits over using insecticides alone for controlling stored-product pests. UR - https://esvpub.com/article/combining-residual-contact-insecticides-with-long-lasting-insecticide-treated-nets-to-limit-dispersa-q9crxxrqpis7mxn ER -