Which term refers to gallons of herbicide used per acre?

The correct term for gallons of herbicide used per acre is GPA, which stands for gallons per acre. This metric is commonly used in agricultural practices, including turf and ornamental weed management, to quantify the amount of herbicide applied to a specific area. It helps growers and applicators ensure they are using the correct dosage for effective weed control while minimizing waste and environmental impact.

GPA allows for standardization in applications, making it easier to compare rates across different herbicides and practices. Understanding this terminology is essential for effective field management and creating appropriate application plans that align with regulatory standards and integrated pest management protocols.

The other options refer to different measurements: GPM (gallons per minute) measures flow rate, GPD (gallons per day) indicates a daily quantity, and GPH (gallons per hour) reflects an hourly usage rate, none of which accurately describes the application rate of herbicides per acre.