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Water-dispersible granules are a new pesticide formulation developed by Swiss companies in the early 1980s. Nowadays, there are a large number of varieties sold in the market, such as 10% high-water dispersible granules produced by Novartis, and 5% Regent special water-dispersible granules produced by Ronald Planck of France. Herbicide varieties have good water dispersibility and high suspensibility.
Water-dispersible granules have been developed on the basis of conventional wettable powders and aqueous suspensions. In comparison, the auxiliary agent for water-dispersible granules is complicated, and contains a wetting agent, a dispersing agent, a disintegrating agent, a binder, a lubricant, etc., so that in addition to maintaining good drug efficacy of the original drug, the content of the active ingredient can be increased; It is very convenient to use and does not cause dusty pollution; it not only increases the suspension rate of the formulated drug (more than 75%), but also does not agglomerate if it is not used up on the day of the drug. The agitation can restore the original dispersibility and uniformity; the water-dispersible granules can maintain a good morphological structure, eliminating the disadvantage that the wettable powder is easy to agglomerate, which is retained on the packaging material, and the packaging material may cause environmental pollution. In addition, in the development of pesticide processing dosage forms, the water-dispersible granules conform to the granulation tendency, and will gradually replace the wettable powder, and provide a room for further improvement for high concentration. Therefore, whether it is in society, in the environment, or in the farmers themselves, it is a good thing to develop and promote water-dispersible granules. (This issue: Senior Consultant of Sinofert, Professor of China Agricultural University, Xiao Yueyan) Source: Sannong Online
What are the benefits of water-dispersible granule pesticides?
There is a certain gap between the processing of pesticide formulations in China and that in developed countries. There is a long-term situation in which old dosage forms such as emulsifiable concentrates and wettable powders have hit the world. There have been many promising developments in recent years, including the development of water-dispersible granules.
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