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<p>Invasive plants are species that have been introduced into new habitats, due to environmental factors and human activities, where they reproduce and spread rapidly, causing harm to the human and natural environmental systems, and leading to sustainable economic losses. In the Kingdom of Saudi Arabia, seven of the most aggressive invasive plants were selected for chemical control as a temporary method to swiftly manage a critical management situation. The study showed the high efficacy of glyphosate 48% (20 mL/L) and bromoxynil 28% (10 mL/L) against parthenium weed (<i>Parthenium hysterophorus</i> L., Asteraceae), achieving a mortality rate of over 90%. The spineless cactus pear (<i>Opuntia ficus-indica</i> (L.) Mill., Cactaceae), and the Hudson pear (<i>Cylindropuntia rosea</i> (DC.) Backeb., Cactaceae), were controlled by around 85% and over 96%, respectively, using a technique based on the spray of plants with a 6% vinegar solution, half diluted in water containing 250&#xa0;g/L of NaCl, followed by treatment with diesel-diluted glyphosate 48% (120 mL/L). Control of the mesquite (<i>Neltuma juliflora</i> (Sw.) Raf. [syn. <i>Prosopis juliflora</i> (Sw.) DC.]), Fabaceae), was achieved by cutting the plant at 1&#xa0;m height and spraying the stump with diesel-diluted glyphosate 48% (80 mL/L) resulting in complete mortality of the treated plants. Application of diesel-diluted glyphosate 48% (100 mL/L) to the trunk bases of woody tree tobacco (<i>Nicotiana glauca</i> Graham, Solanaceae), led to 100% plant mortality. High efficacy (100%) was obtained by spraying glyphosate 48% (20 mL/L) on lantana (<i>Lantana camara</i> L., Verbenaceae), and pale Mexican poppy (<i>Argemone ochroleuca</i> Sweet, Papaveraceae). Additionally, pale Mexican poppy was completely controlled using imazethapyr 20% (2 mL/L).</p>

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Chemical control of some highly aggressive invasive plants in the Kingdom of Saudi Arabia

  • 期刊论文

  • 发表日期：

    2026年3月24日

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  • Bouzid Nasraoui,
  • Abdulaziz I. Al-Zamil,
  • Ahmed A. Al-Ghamdi,
  • Abdulwali A. Al-Khulaidi,
  • Abdulaziz A. Al-Zahrani,
  • Abdulaziz I. Al-Mubarriz,
  • Awaji H. Abualgith,
  • Bashir I. A. Abdallah,
  • Talal A. Al-Mutairi,
  • Mohammed A. Al-Khuriji,
  • Ayman S. Al-Ghamdi

摘要

Invasive plants are species that have been introduced into new habitats, due to environmental factors and human activities, where they reproduce and spread rapidly, causing harm to the human and natural environmental systems, and leading to sustainable economic losses. In the Kingdom of Saudi Arabia, seven of the most aggressive invasive plants were selected for chemical control as a temporary method to swiftly manage a critical management situation. The study showed the high efficacy of glyphosate 48% (20 mL/L) and bromoxynil 28% (10 mL/L) against parthenium weed (Parthenium hysterophorus L., Asteraceae), achieving a mortality rate of over 90%. The spineless cactus pear (Opuntia ficus-indica (L.) Mill., Cactaceae), and the Hudson pear (Cylindropuntia rosea (DC.) Backeb., Cactaceae), were controlled by around 85% and over 96%, respectively, using a technique based on the spray of plants with a 6% vinegar solution, half diluted in water containing 250 g/L of NaCl, followed by treatment with diesel-diluted glyphosate 48% (120 mL/L). Control of the mesquite (Neltuma juliflora (Sw.) Raf. [syn. Prosopis juliflora (Sw.) DC.]), Fabaceae), was achieved by cutting the plant at 1 m height and spraying the stump with diesel-diluted glyphosate 48% (80 mL/L) resulting in complete mortality of the treated plants. Application of diesel-diluted glyphosate 48% (100 mL/L) to the trunk bases of woody tree tobacco (Nicotiana glauca Graham, Solanaceae), led to 100% plant mortality. High efficacy (100%) was obtained by spraying glyphosate 48% (20 mL/L) on lantana (Lantana camara L., Verbenaceae), and pale Mexican poppy (Argemone ochroleuca Sweet, Papaveraceae). Additionally, pale Mexican poppy was completely controlled using imazethapyr 20% (2 mL/L).