Classification of Herbicides
- According to mode of action of herbicides
Contact - When the chemicals kill the plants by coming in
contact with them they are called contact herbicides.
Translocated -The systemic or translocated herbicides are
chemicals that kill the plants after their absorption by accelerating or retarding
the metabolic activities of plants.
- According to their relative time of application to
Pre-plant herbicides -Are applied on the field before planting
Pre-plant emergence herbicides - Are applied before emergence
Past-emergence herbicides - Are applied after the emergence
- Chemical classification of herbicides
It refers to grouping of various herbicides according to their chemical composition.