Missouri task force wants to free state from the smell of… well, you know what April 8, 2021 A Missouri task force wants to buy back all the stinky Callery pear trees in St. Louis. // Image courtesy of Missouri Botanical Garden So…you know that smell that’s normally present in the air every spring? A Missouri task force plans to do something about that. The Missouri Invasive Plant Task Force is collaborating with Forest ReLeaf of Missouri and BiodiverseCity St. Louis to free St. Louis of the “foul-smelling” Callery pear trees known by various other less pleasant names. The task force will buy the trees beginning April 20 and replace them with other ecologically-friendly trees.