The ornamental design for a modular treeladder, as shown and described.
FIG. 1 is a perspective view of a modular tree ladder shown attached to a tree. The broken lines are for illustrative purposes only and form no part of the claimed design.
FIG. 2 is a front view of the modular tree ladder as shown in FIG. 1;
FIG. 3 is a left side elevation view of the modular tree ladder as shown in FIG. 1;
FIG. 4 is a rear view of the modular tree ladder as shown in FIG. 1;
FIG. 5 is a right side elevation view of the modular tree ladder as shown in FIG. 1;
FIG. 6 is a top plan view of the modular tree ladder as shown in FIG. 1; and,
FIG. 7 is a bottom plan view of the modular tree ladder as shown in FIG. 1.