A sprayer is a device used to spray liquids, where sprayers are commonly used to spray water, herbicides, crop performance materials, pest maintenance chemicals, and manufacturing and production line ingredients.

In agriculture, a sprayer is a device used to spray herbicides, pesticides and fertilizers on crops. Agricultural sprayers are designed to optimize their suitability and performance for the many uses of the machine, whether it be on 
crops, vegetation or soil.

Agricultural sprayers are commonly used to spray water and water/chemical solutions containing acids or caustic substances to improve crop performance or control pests, namely fertilizers and pesticides.