A pesticide sprayer is a device used to apply pesticides, herbicides, or fungicides to crops and plants. It helps farmers and gardeners protect their plants from pests, diseases, and weeds. The sprayer can be handheld, backpack-mounted, or tractor-mounted, depending on the size of the area being treated. These sprayers work by mixing the pesticide with water and then spraying it in a fine mist over the target area. Proper use of a pesticide sprayer ensures even coverage and minimizes waste. Safety precautions are essential to protect the user and the environment while using these devices.