Obsthormon 24a — this is a plant growth regulator containing 1-naphthaleneacetic acid (1-NAA) at a concentration of 7.5%. The product is used for apple and pear trees. For apple trees, the recommended dosage is 18–30 ml per 100 liters of water, and application can be single or double. For pear trees, the dosage is 24 ml per 100 liters of water, and application is done twice. The product promotes accelerated fruit ripening. Obsthormon 24a is manufactured by L. Gobbi s.r.l., located in Italy. This aqueous solution is convenient for spraying plants. The product is environmentally safe and does not harm plants when used correctly. Application of Obsthormon 24a allows improving the quality of the harvest, ensuring earlier ripening of apples and pears. It effectively influences plant growth and contributes to the formation of healthy fruits. The product easily dissolves in water and evenly distributes across the leaves and stems of plants.