Why are herbicides often sprayed instead of applied as granules?

Spraying is the most common method for applying herbicides because it offers several practical advantages over using granular formulations.1

The primary benefits of spraying include:

• Uniformity and Precision: Diluting herbicides in water or oil allows for extremely small amounts of the chemical to be applied uniformly across a field.1
• Directional Control: Sprays can be accurately directed underneath growing plants, which helps target weeds while avoiding the crop.1
• Ease of Management: Calibration and rate control are generally easier to manage with spray machinery than with granular applicators.1

While granular materials are available and offer specific advantages under certain conditions, spraying remains the preferred choice for many agricultural operations due to its efficiency and the convenience provided by modern spraying equipment. Regardless of the method chosen, it is essential to prioritize environmental safety and adhere to integrated weed-management strategies to minimize the risk of nontarget damage and the development of resistant weed populations.21