Flail mowers for orchards and vineyards are a type of agricultural flail mower primarily designed for shredding of plant residue after pruning and for weed and grass in orchards and vineyards. Beside their basic purpose, flail mowers can also be used for shredding of crop residue, for maintenance of all other agricultural, public, neglected or uncultivated areas. Due to electronically balanced rotor of high speed, blades precisely and efficiently shred plant residue transforming it to light humus fertiliser, improving the quality and fertility of the soil and decreasing the use of inorganic fertilisers. This directly reduces agricultural production costs and increases yields.