Organic herbicide, for use in organic agriculture.
Often consists of plant, animal, microbial or mineral agents such as:
Copper, sulfur, beeswax or plant oils.
These often decompose faster in nature than synthetic chemical pesticides
In particular, These pesticides serve only for use when it is already too late for mechanical weed control.
I also recommend using the See & Spray technology from the Precision Farming DLC for this purpose.