Chinese experts have developed a new formulation of nano-pesticide.

Chinese experts have developed a new formulation of nano-pesticide.

The efficacy and safety are significantly improved, and the dosage of pesticides can be reduced by 30%.

As an important agricultural input, people almost know about pesticides, but have you ever heard of pesticides made with nanotechnology? A few days ago, the reporter learned from the first International Conference on Nanotechnology and Sustainable Agricultural Technology held in Beijing that Chinese agricultural experts have successfully developed new dosage forms of nano-pesticides, compared with traditional pesticides. This new pesticide can significantly improve the effectiveness and safety of pesticide use. Once it is widely used, it can reduce the use of existing pesticides in China by 30%.

Improve the effective utilization rate of pesticides

"the new dosage form of nano-pesticide is one of our important research achievements over the years." Cui Haixin, chief scientist of the Agricultural Nano Innovation team of the Institute of Agricultural Environment and Sustainable Development of the Chinese Academy of Agricultural Sciences, told reporters that the new formulation of nano-pesticides includes pesticides, fungicides, herbicides and so on. Researchers make full use of nanotechnology to reduce pesticide particles from the traditional 5 microns to 100 nanometers. The small size effect can reduce the shedding of foliar pesticides and improve the utilization rate of pesticides. At the same time, using nano-materials to load pesticide particles, according to the time-effect characteristics of crop control, microencapsulation technology can be used to realize the controlled release of drugs and prolong the effective period, so that the application times of pesticides can be reduced. thus the food safety problems caused by pesticide abuse can be avoided.

In addition to improving the effective utilization rate of pesticides and reducing the use of pesticides, nanotechnology can also reduce the use of organic solvents in pesticide preparations. "most pesticides are insoluble compounds, and usually carriers, solvents and auxiliaries must be added for dosage form processing before they can be diluted with water and sprayed. Nanotechnology can improve the water solubility and dispersibility of insoluble drugs, and reduce the use of benzene, toluene, xylene and other organic solvents in pesticide preparations, thus reducing the pollution caused by the inflow of harmful solvents and auxiliaries into the environment. " Cui Haixin added.

The application prospect of nano-pesticide is bright.

Compared with traditional pesticides, what is the application prospect of nano-pesticides? According to the experimental comparative data provided by the Chinese Academy of Agricultural Sciences, under the premise of the same effect of pest control, the use of new nano-pesticide formulations can reduce the amount of pesticides by more than 30%, eliminate 500000 tons of "tribenzene" solvents every year, greatly reduce pesticide residue pollution, and improve food safety and ecological environment. It is reported that at present, the agricultural nano-innovation team of the Academy of Agricultural Sciences is committed to the industrial development, promotion and application of nano-pesticides.

China is a large traditional agricultural country, and the input of agricultural materials such as chemical fertilizers and pesticides has maintained the sustained and steady growth of the output of grain and agricultural products in our country. However, the long-term inefficient use of traditional pesticides and fertilizers has also caused food safety and eco-environmental problems. Nanotechnology has shown a good development prospect in alleviating environmental pollution caused by pesticide abuse and drug resistance of pests. " Wang Xuejun, deputy director of the Science and Education Department of the Ministry of Agriculture, said that at present, China is promoting the action plan for double reduction of chemical fertilizers and pesticides, and will actively support the research and development of agricultural nanotechnology, accelerate the development of efficient and safe new green agricultural chemicals, promote the efficient use of agricultural resources, improve food safety, and protect national health. (according to the Farmers' Daily)