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<p>This study investigated the preliminary phytochemical composition of the chloroform extract from the leaves of lemon verbena (<i>Aloysia citrodora</i> Paláu; Verbenaceae) and evaluated the insecticidal, herbicidal, and toxicological activities of its extracts, as well as its essential oil. The toxicity assays using the <i>Artemia</i> spp. model indicated slight to moderate toxicity. Some extracts exhibited herbicidal activity at high concentrations, while promoting growth at lower concentrations. In insecticidal tests against the fruit fly <i>Drosophila melanogaster</i>, no significant mortality was observed; however, the methanolic extract showed approximately 85% hatch inhibition at concentrations greater than 500 ppm. Results demonstrated promising herbicidal activity at high concentrations, suggesting their potential use as natural weed control agents in agricultural systems; however, careful concentration management will be crucial to avoid unintended effects.</p>

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Phytochemistry of Aloysia citrodora and its insecticidal, herbicidal, and toxic activities

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Marianna Ricárdez-Lara,
  • Martín Alejandro Serrano-Meneses,
  • Luis Ricardo Hernández,
  • Zaida Nelly Juárez

摘要

This study investigated the preliminary phytochemical composition of the chloroform extract from the leaves of lemon verbena (Aloysia citrodora Paláu; Verbenaceae) and evaluated the insecticidal, herbicidal, and toxicological activities of its extracts, as well as its essential oil. The toxicity assays using the Artemia spp. model indicated slight to moderate toxicity. Some extracts exhibited herbicidal activity at high concentrations, while promoting growth at lower concentrations. In insecticidal tests against the fruit fly Drosophila melanogaster, no significant mortality was observed; however, the methanolic extract showed approximately 85% hatch inhibition at concentrations greater than 500 ppm. Results demonstrated promising herbicidal activity at high concentrations, suggesting their potential use as natural weed control agents in agricultural systems; however, careful concentration management will be crucial to avoid unintended effects.