Nanomaterials have broad application potential in insect repellent agriculture. The following are some common examples of nano powders that may play a role in agricultural pest control:
- Silica nanoparticles(HW-A213): Silica nanoparticles are widely used in agriculture as an environmentally friendly pesticide. They can adsorb on the surface of insect shells, damage the protective layer of the insect body, and cause dehydration, suffocation, or death of the insect.
- Metal oxide nano powder: metal oxide nano powder, such as silicon dioxide (HW-T681&T689) and zinc dioxide (HW-Z713), has the effect of insecticide. They can kill insects by photocatalysis, activate the surface of nano powder by ultraviolet radiation, produce free radicals or oxides, and cause damage to insects.
- Carbon nanotubes(HW-C931): Carbon nanotubes have a large surface area and high mechanical strength. They can be used as carriers to load insecticides onto their surfaces and improve insecticidal efficacy by controlling release. In addition, carbon nanotubes can also be used as insect sensors to monitor and control pests by detecting chemical signals released by insects.
- Nano boron nitride(HW-L551): Nano boron nitride has excellent thermal conductivity and stability, and can be used to develop efficient fire-resistant materials. In agriculture, it can also be used as an insecticide to control pests through physical effects or interference with the normal physiological activities of insects.
- Nanographene(HW-C952): Nanographene is a nanomaterial with excellent conductivity and photothermal properties. It can be applied to the electric insecticidal mechanism, which kills pests by heating. Nanographene can generate high temperatures at lower currents, causing fatal damage to agricultural pests.
The application of nano powder in agricultural insecticide is mainly reflected in the use of nano pesticide. Nanopesticides are the use of nanotechnology to prepare pesticide active ingredients into nanoscale particles, in order to enhance their solubility, dispersibility, and activity, improve the effectiveness and utilization of pesticides, and ensure their safety and environmental friendliness. In addition, scientific and reasonable agricultural management and the application of comprehensive prevention and control measures remain the key to promoting sustainable agricultural development.