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How effective are rodenticides in controlling rat populations? 


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Rodenticides have shown varying effectiveness in controlling rat populations. Studies have highlighted that fertility reduction applied early in female lifetimes can effectively control rodent populations, especially when sustained over multiple generations . Additionally, field studies have demonstrated the efficacy of anticoagulant rodenticides in reducing rat damage on oil palm plantations, with second-generation baits like flocoumafen showing promising results . Evaluations on the palatability and efficacy of rodent baits placed in sewers over 90 days revealed that bait blocks remained effective in controlling urban rodents even after alterations in appearance, suggesting a sustainable control strategy . Furthermore, research on novel rodenticides has shown promising results in reducing rat populations, with compounds like ethyl 2-amino-5-cyano-1,6-dihydro-6-oxo-1-(1H-1,2,4-triazol-3-yl) pyridine-3-carboxylate demonstrating significant reductions in rat populations . Combining rodenticides with natural predators like barn owls has also been explored as a sustainable approach for rat control in agricultural settings .

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Rodenticides can be effective in controlling rat populations, but long-term use may lead to resistance and harm to predators through bioaccumulation, requiring careful selection and application for sustainability.
Rodenticides, such as novel triazole derivatives, effectively reduce rat populations by 61.9% to 68.4% in field applications, showing promising rodent control potential compared to traditional zinc phosphide.
Rodenticides placed in sewers in São Paulo remained palatable and effective for at least 90 days, showing promise in controlling urban rat populations sustainably.
Rodenticides, particularly flocoumafen, coumatetralyl, and chlorophacinone, effectively reduce rat populations in oil palm plantations, with reductions ranging from 58.70% to over 70.00%.
Fertility reduction using contraceptives is more effective than rodenticides in controlling rat populations, especially in rodenticide-resistant populations, as per the research findings.

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