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<p>The harmful health impacts of insecticides on non-target organisms, including humans, are well known and since the advent of organic farming, there has been a continuous push to find alternative ways of protecting crops. This work proposes a device that integrates two existing insecticide alternatives, exclusion nets and pheromonal pest control, by turning the fibers of the nets into dispensers for pheromone. This is accomplished using a technique known as Dip-Dip-Dry and differs from other methods of storing pheromone on polymers by sequestering pheromone within a porous structure rather than integrating it directly into the polymer matrix. The major advantage of this is that the porous structure can be refilled with pheromone and the nets reused over multiple growing seasons. When testing with the alarm pheromone of the green apple aphid (<i>Myzus persicae</i>), (E)-β-farnesene, Dip-Dip-Dry modified nets exceeded the targeted pheromone release rate of 0.05–0.9 mg·m<sup>− 2</sup>·day<sup>− 1</sup>, which is as the minimum required dose to elicit a response in aphids, and release lasted for a 10–20&#xa0;day period. Field tests conducted on McIntosh apple trees demonstrated the effectiveness of the pheromone impregnated nets with a 76% reduction in aphid populations compared to plants protected by conventional, pheromone-free exclusion nets.</p>

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Pheromones Impregnated on Porous PLA Fibers for Integrated Pest Management

  • 期刊论文

  • 发表日期：

    2026年4月17日

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  • Darius Klassen,
  • Catherine Pouchet,
  • William Simon,
  • Isabella Smith,
  • Noémie Lemoine,
  • Bruno Blais,
  • Mikaël Larose,
  • Gérald Chouinard,
  • Adya Karthikeyan,
  • Marie-Josée Dumont,
  • Jason R. Tavares

摘要

The harmful health impacts of insecticides on non-target organisms, including humans, are well known and since the advent of organic farming, there has been a continuous push to find alternative ways of protecting crops. This work proposes a device that integrates two existing insecticide alternatives, exclusion nets and pheromonal pest control, by turning the fibers of the nets into dispensers for pheromone. This is accomplished using a technique known as Dip-Dip-Dry and differs from other methods of storing pheromone on polymers by sequestering pheromone within a porous structure rather than integrating it directly into the polymer matrix. The major advantage of this is that the porous structure can be refilled with pheromone and the nets reused over multiple growing seasons. When testing with the alarm pheromone of the green apple aphid (Myzus persicae), (E)-β-farnesene, Dip-Dip-Dry modified nets exceeded the targeted pheromone release rate of 0.05–0.9 mg·m− 2·day− 1, which is as the minimum required dose to elicit a response in aphids, and release lasted for a 10–20 day period. Field tests conducted on McIntosh apple trees demonstrated the effectiveness of the pheromone impregnated nets with a 76% reduction in aphid populations compared to plants protected by conventional, pheromone-free exclusion nets.