Check for an alternate leaf arrangement to eliminate ash, which is opposite in arrangement. Ash trees have a leaf with opposite leaf arrangement. There's always a terminal leaflet where leaflets ...

John Skinner, community forester, joined us to talk about the invasive emerald ash borer that kills ash trees.

The shining and dangerous pest is poised to wreak havoc on Edmonton’s $400-million population of ash trees, and the city has ...

looks up and inspects the tree’s crown. No obvious signs of damage — no thinning, no dead spots, no noticeably small leaves. But all is not well in Carbondale. While this particular green ash ...

Question: My ash tree and sycamore tree are losing leaves, which are somewhat disfigured and have blackened areas on the leaves. What should I do? Answer: Recent rains have led to a buildup of ...

And we all stop and look at this tree, and we're, like, that's an ash. It's definitely an ash. It's healthy. It's full of green leaves. It looks great. It was really this moment of confusion.

first noting the number of trees that had branches without leaves. Ash trees infested with emerald ash borer beetles were discovered in Marion County in August 2024. Courtesy of Wyatt Williams ...

The Bayfield County forester paused for a moment, and then it hit him: Only black ash trees had lost leaves. The others were fine. Holmes took a closer look at one tree and saw a D-shaped exit ...

If an ash tree has no leaves remaining on it, or its leaves have died back on more than a third of the tree, it should be removed as soon as possible, Ball said. "Ash dies and falls in an ...

Using insecticides can be especially dangerous, she said, because they can make their way into ash tree’s pollen and leaves and harm native bees and caterpillars of moths and butterflies.