The sequence of events from absorption of the herbicide into the plant through plant death. Refers to all plant-herbicide interactions. The primary biochemical site that is affected by the herbicide, ultimately resulting in the death of the plant. Also referred to as herbicide mechanism of action. The death of a specific plant tissue while the rest of the plant is still alive.
Necrotic areas are generally dark brown in color.
A time of herbicide application occurring after the crop and weeds emerge from the soil. Also referred to as a foliar application. A time of herbicide application occurring after a crop is planted but before the crop or weeds emerge from the soil. Often referred to as preplant incorporation treatment. A general classification for herbicides that are able to move away from the site of absorption to other parts of the plant.