Ash trees (Fraxinus spp.) are also keystone species, meaning that countless other life forms depend on them for survival, and their presence can bring biodiversity into your garden. Yet ...

Native leaves from trees like beech (Fagus spp.) and ash (Fraxinus spp.) are particularly well-suited for leaf mold due to ...

The Emerald Ash Borer (EAB), scientifically known as Agrilus planipennis, is an invasive beetle that has caused significant damage to ash trees (Fraxinus spp.) across North America and parts of ...

This variability could inform the development of hardier ash trees, resistant to both the invasive beetles and rising ...

Ash dieback disease, caused by the invasive fungal pathogen Hymenoscyphus fraxineus, poses a significant threat to European ash trees, particularly Fraxinus excelsior. This disease has been ...

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 ...