For decades, the American elm ... to save the beloved elm, including increased watering and fertilization, injecting the tree with micronutrients and air-spading its roots to alleviate compaction ...

The 36 trees planted last week at Boutwells Landing senior living community in Oak Park Heights have a big job: To help revitalize the state’s elm population. The American elm trees, each about 2 ...

The roots of the American elm are exposed, holes are drilled and tubes are inserted into the base of the tree. Water is mixed with the inoculate and then flushed through the whole tree.

Dutch elm disease ravaged the ... fungal pathogen that can move through root grafts," said arborist Taylor Judd. It's not easy to see, but these massive American elms are at risk of a deadly ...