Kentucky Coffee Tree by the pond

Beside the durability of the wood, the tree apparently supplied an important insecticide on farms. In 1892, Charles F. Millspaugh cited an article from The American Agriculturalist which recommended the leaves to kill flies. "Though this locality is infested, like Egypt, with a plague of flies, we have never suffered any serious annoyance from them....For ten years we have used the bruised leaves, sprinkled with molasses water, as a fly-poison. It attracts swarms of the noisome insects, and is sure death to them." (American Medicinal Plants, Charles F. Millspaugh, 1892, reprinted 1974, Dover Publications)
Ref: http://www.killerplants.com/weird-plants/20031211.asp