I in the chloroplast by interfering with electron transport. This mechanism is unique to plants. They have selectivity to a wide range of economic crops. The most common visual injury symptoms are stunting, interveinal chlorosis, chlorosis or burning of the leaf margins and tips, and eventual necrosis of the entire plant.
Symptoms typically appear first on older, larger leaves.
Rapid metabolic breakdown of these herbicides is the primary mechanism of crop tolerance. Maintaining good growing conditions and plant health enhances rapid herbicide degradation and minimizes the risk of crop response. Weed resistance to photosynthesis-inhibitor herbicides has occurred in a significant number of plant species around the world. Hi-Bred International, Inc.