Photo of yellow-spotting on leaves due to application of a combination of basagran + metribuzin + In-Place.
Yellow-spotting on leaves due to application of a combination of basagran + metribuzin + In-Place. In-Place is a deposition aid that is added to a tank mix with pea herbicide to prevent/reduce drift. In-Place tends to concentrate the herbicides at certain locations on the leave surface, resulting in yellow spots on the foliage.

Photo Source: Lyndon Porter, USDA ARS