The ornamental design for an irrigationcontrolbox, as shown and described.
FIG. 1 is a front top right perspective view of my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The dash-dash line in FIG. 1 and FIG. 2 is a boundary line that forms no part of the claimed design, the appearance of any portion of the article within the rectangle formed by the dash-dash boundary forms no part of the claimed design.