Abstract Pesticides are substances or mixtures of substances that differ from each other in terms of their physical, chemical and other properties. Hence, they are divided into different classifications based on these characteristics. Some pesticides are also divided into different classes depending on these reasons. Currently, widely used pesticides are divided into three main classifications - according to the function of the pesticide, the pest organism it kills, and the chemical composition of the pesticide. Based on the toxicity of pesticides, the World Health Organization divides them into four classes: extremely dangerous, highly dangerous, moderately dangerous and less dangerous. Improper application of pesticides can seriously damage living organisms and the environment. Most pesticides do not differentiate between pests and other similar random life forms and kill them all.

ƏDƏBİYYAT: 1. Bitkilərin ziyanvericilərdən və xəstəliklərdən qorunması. B.A.Bryantsev, T.L.Dobrozrakova. 1966. 2. Chemical Classification & Pesticide Resistance Management. BC Tree Fruit Production Guide Association. 3. Pesticides Classification and Its Impact on Human and Environment. İshwar Chandra Yadav and Nıngombam Linthoingambi Devi. Environmental Science & Engineering. Vol. 6: Toxicology. 2017. 4. The WHO Recommended Classification of Pesticides by Hazard and Guidelines to Classification 2019.