Abstract: The invention is an apparatus for laterally engaging a standing tree, compressing branches of the tree toward its trunk, and binding the branches while the branches are compressed. The apparatus includes: a support structure attached to a rigid arcuate frame, the frame partially circumscribing a vertical channel occupiable by the tree and having a horizontal channel through which the tree enters into the vertical channel when the tree is laterally engaged for baling; an assembly for compressing branches of the tree; a horizontal arcuate guide rotatably mounted to the frame; an assembly for rotating the guide around the vertical channel; and an assembly for binding branches of the tree. The apparatus may further include: an assembly for selectively gating the horizontal channel; and an assembly for guiding the trunk through the horizontal channel and deflecting branches during lateral engagement.