Purdue Landscape Report: We have received a few elm ... varieties being more susceptible. The fungus becomes active in the spring at temperatures of 45 deg F or above. It can release spores that will ...

An apple may not fall far from the tree, but for a leaf, it depends on its shape. Elm or apple leaves — oval and symmetrical, with few protruding lobes — fall quickly, making them likely to ...

An iconic elm tree that has stood ... is stressed and unhealthy, and the tree "is not demonstrating the ability to withstand new stressors and reduced leaf area. “Heritage Tree #1 has been ...

PORTLAND, Ore. — A downtown Portland landmark took its final bow on Monday, as the city cut down a tree that's stood for more than 150 years. The towering, iconic elm tree has stood at 1111 ...