Halogen-substituted active ingredients

A survey of the new ISO provisionally approved active ingredients for modern crop protection available in the time frame 2000-2006 (February) shows that around 74% of them are halogen-substituted (Br, I < Cl, Cl/F < F). In this time, approximately four times more halogen-containing insecticides acaricides and fungicides, as well as two times more herbicides, were approved than non-halogenated active ingredients. 

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