Like the protection period of patents, the protection period of pesticides also has timeliness. China stipulates that new pesticides have a 6-year protection period after registration.
Generally speaking, the protection period of pesticides refers to the protection of active ingredients, so the active ingredients in mixed preparations are also bound by the protection period of pesticides. The manufacturer of mixed preparations can solve this problem by obtaining the authorization of the manufacturer of active ingredients.
This is only my personal understanding, and the specific situation should be consulted by the Pesticide Testing Institute of the Ministry of Agriculture. The official website address of the Pesticide Testing Institute of the Ministry of Agriculture is:/