Recently Chinese Ministry of Agriculture announced the final time limit of withdraw of 3 long residual herbicides including Metsulfuron.

1.The use of  Chlorsulron-containing product in China shall be prohibited;registration of Chlorsulron-containing product shall be cancelled from 31 December 2013.

2.The use of Metsulfuron and Ethametsulfuron in China shall be prohibited step by step;the registration of their single formulation product shall be cancelled from 31 December 2013;the registration of the Metsulfuron mixture formulation and registration of Ethametsulfuron shall be cancelled from 1 July 2015.

3.The registration of Metsulfuron product shall be maintained for export;in case of need for export,enterprises can apply for change of Metsulfuron registration for export by July 2015.

According to the stalistics of China Pesticide Registration Watch,there have been respectively 53 registration of Metsulfuron,21 of Chlorsulron and 24 of Ethametsulfuron (4 Metsulfuron & Chlorsulron mixture,so there may be repeated stalistics of the 2 products).Except for Dupont's 2 registered products-Metsulfuron technical and 10% Bensulfuron-methyl and Metsulfuron wettable powder,all others are registration's of Chinese enterprises.