Garden sprayers are tools used to apply liquids, such as fertilizers, pesticides, or herbicides, to plants and soil. They come in various types, including handheld, backpack, and wheeled models, allowing users to choose based on the size of their garden and the volume of liquid needed. These sprayers typically feature a tank to hold the liquid, a pump to create pressure, and a nozzle to control the spray pattern. Proper use of garden sprayers can help ensure even coverage and effective treatment of plants, contributing to healthier gardens and improved crop yields.