How does the physical insect net work against pests?

   Physical insect-proof net mainly achieves pest control through barrier, light reflection and electrostatic adsorption.
  The barrier principle is its most basic pest control method. Physical insect-proof nets feature pores of a specific size, which are designed according to the body size of common pests to effectively block pests from entering the protected area. For example, for tiny pests such as aphids and whiteflies, the mesh holes are made relatively small, generally around 1–2 mm, so the pests cannot pass through.

  In terms of the reflection principle, some physical insect-proof nets have specially treated surfaces that reflect light of specific wavelengths. Certain pests are sensitive to these wavelengths; the reflected light disturbs their visual system, making it hard for them to locate access to the protected area and thus reducing pest approach.

  As for electrostatic adsorption, electrostatic materials may be added to the net during production, or the net may undergo electrostatic treatment. When pests touch the insect net, they get electrostatically stuck to the mesh surface and cannot move onward, achieving insect control. This adsorption works notably well against small pests or those with weak flying ability.

  Combining these mechanisms, physical insect-proof nets deliver reliable pest protection for crops, breeding farms and other sites.