Front mower group (10) for tractors (15) comprising a support frame (11), a mower (12) connected below the support frame (11), means for transmitting motion coming from a cardan shaft connected to a front power drive of a tractor (15) to the mower (12), the mower group (10) further comprising an upper frame (19) connectable at its rear part to a three-point attachment (20) of the tractor (15), the support frame (11) being connected at its upper part through moveable connection means (23, 30, 31, 32) to the upper frame (19), in which the front mower group (10) further comprises means (100) for intercepting and conveying the fine dust present in suspension above the support frame (11) and generated during the use of the mower (12), the means (100) for intercepting and conveying being arranged laterally with respect to the upper frame (19) in intermediate position between the tractor (15) and the support frame (11).
