Pennsylvania State Extension Cool-Season Turfgrass Pest Management Practice Test

When herbicide is over-applied to turfgrass, one effective strategy is to water the area with one inch of water. This practice aids in diluting the herbicide concentration in the soil and helps to reduce the potential for damage to the grass. By flushing the herbicide away from the turfgrass roots, water can help mitigate any negative effects the over-application may cause.

Applying a sufficient amount of water may also encourage the herbicide to break down more rapidly in the soil, allowing the turfgrass a better chance of recovery. It's essential to take immediate action to limit the extent of damage, as prolonged exposure to high concentrations of herbicides can lead to significant harm or even death of the grass.

Other options may not be effective or could further complicate the situation. For example, igniting the area would be dangerous and ineffective. Delaying further applications may be necessary, but it doesn’t address the immediate consequences of the over-application. Removing the turfgrass is a drastic measure that would not be effective if the existing grass can recover with proper care. Thus, watering is the most practical first step in managing the aftermath of an over-application.