Beginning in June, these shallower structures are used mostly by very small fish. Using more than 100 trees per surface acre can inhibit largemouth bass predation on bluegills, which results in a large but stunted bluegill population. The actual number of trees needed will depend on the bottom slope of the area where the structures are to be placed. Steep-sloped areas require fewer trees to construct a 12 to 21 feet deep tree line. Thus, for the same number of evergreen trees, more tree lines can be created in steep-sloping areas than in areas with gradual slopes.
Tree lines are easier for anglers to locate than smaller isolated structures.
They also provide continuous lines of structure that allow anglers to fish various depths depending on where the fish are at any given time. Recommended stategy for placing evergreen trees in ponds and reservoirs. Construction and Placement Individuals or groups need to obtain permission before placing trees in ponds or reservoirs. This is particularly important for reservoirs where improperly placed floating trees can be a serious hazard for boaters. Contact the Ohio Division of Wildlife for permission and direction before placing structure in reservoirs.