Crop protection chemicals, often known as agrochemicals, are used to protect crops against insects, diseases, and weeds, as well as to increase nutrient levels in the field or crops. Depending on the pest they control, agrochemicals are categorised as insecticides, herbicides, fungicides, rodenticides, bio-pesticides, and nematicides. Crop shifting, commercial planting, and horticulture are some of the industries that use them.