Within three months, a shipment of small branches arrived in California. The branches carried not only cottony cushion scale, ...

In heavily affected areas, up to 30% of beech trees are killed within seven years of contracting beech leaf disease.

A towering symbol on the front lawn of the New Hampshire State House came down Monday as age and disease spelled the end to ...

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

But he said other interventions would be needed to give ash trees a helping hand, such as protecting trees from grazing deer ...

Scientists at the Royal Botanic Gardens, Kew and Queen Mary University of London have discovered that a new generation of ash ...

The winners of this year’s “I love this tree because...” photo competition have been announced with the top entries on show ...

The trees, which grow to 80 metres, once flourished here but this landscape is so degraded some want alpine and mountain ash declared a threatened species.

The Ash tree grows in various soil conditions. Many trees will need to be removed as decline and death is likely. Emerald ash borer was first identified in Kansas in 2012.

ELDORA, Iowa — Thunderstorms blew across Iowa on Friday morning, downing trees and power lines and leaving thousands without power. Some areas of the state received nearly 2 inches of rain ...

Winnipeg will start treating ash trees in certain areas for the emerald ash borer starting next week, the city said in a news release Thursday. Those treatments will happen Monday to Friday ...