DNA sequencing shows young trees are more likely to have gene variants that confer partial resistance to a fungus that has ...

An ash tree commonly refers to trees of the genus Fraxinus (from Latin "ash tree") in the olive family Oleaceae.The ashes are usually medium to large trees, mostly deciduous though a few ...

Since 2019, scientists in Penn State's Louis W. Schatz Center for Tree Molecular Genetics have focused research efforts on Oregon ash (Fraxinus latifolia), a species that plays a critical role in ...

The emerald ash borer (Agrilus planipennis), a wood-boring insect native to Asia, is responsible for decimating ash (Fraxinus spp.) throughout the United States and elsewhere. In Indiana, this ...

Detailed studies have elucidated the dual nature of H. fraxineus, showing that while it acts aggressively on Fraxinus excelsior in Europe, it exhibits a benign presence in its native range [4].

Since 2019, scientists in Penn State’s Louis W. Schatz Center for Tree Molecular Genetics have focused research efforts on Oregon ash (Fraxinus latifolia), a species that plays a critical role ...

These releases ensured that ash borer populations no longer exploded but instead were maintained at a steady low level. This reduced pressure on ash trees, so that roughly 40 percent of the mature ...

Dutch Bros Coffee, 2140 W. Elizabeth St., will be closed so the trees, which are infected with emerald ash borer, can be removed. This pest infects and kills ash trees, genus Fraxinus, unless they ...

The emerald ash borer has the "potential to decimate all untreated North American Ash species of the genus, Fraxinus," according to the release. In Fort Collins, one third of the canopy is made up ...

Because the fungus takes much longer to kill large trees than young ones, Buggs’s team was able to compare the genomes of 128 adult European ash trees (Fraxinus excelsior) and 458 saplings at a ...