Control Efficacy of Long-Lasting Insecticidal Nets against Aromia bungii（Coleoptera: Cerambycidae）

The efficacy of insecticide-incorporated nets（permethrin-incorporated nets and etofenprox-incorporated nets）against the red-necked longhorn beetle, Aromia bungii（Faldermann）（Coleoptera: Cerambycidae）, was evaluated. Choice tests and forced contact trials were conducted to assess adult settlement inhibition, oviposition deterrence, larval boring inhibition, and adult mortality rates. After installation, permethrin-incorporated nets showed 97.7% settlement inhibition and 92.4% oviposition deterrence, demonstrating significantly superior performance to the control nets. Etofenprox-incorporated nets achieved 91.3% settlement inhibition and 84.9% oviposition deterrence efficacy, with oviposition deterrence being significantly higher than the control nets and complete inhibition of larval boring. After three months of weathering, permethrin-incorporated nets maintained 90.0% oviposition deterrence, remaining significantly superior to the control nets. Conversely, etofenprox-incorporated nets showed reduced oviposition deterrence（48.9%）, performing inferiorly to the control nets. In forced contact trials, permethrin-incorporated nets exhibited high adult mortality rates both initially after installation and after three months, whereas etofenprox-incorporated nets showed diminished effectiveness after three months. Overall, these results demonstrate that insecticide-incorporated nets constitute an effective control material that combines the advantages of both physical and chemical control methods, with permethrin-incorporated nets in particular providing long-term residual effectiveness.