Elms in the Alberta Avenue neighbourhood are being felled as another case of a deadly and highly contagious fungal disease ...

Some cherry and plum trees in the central Ohio area are turning black from a fungal disease. Here's what you need to know.

Travelling across Ireland, it is hard to ignore the lines of dead and dying ash trees in the hedges.

Black knot, a fungal disease, is affecting cherry and plum trees in the Greater Columbus area, likely due to recent wet weather. The disease causes hard, black knots on branches, disrupting growth ...

We've all heard of Vermont's state mushroom: the bear's head tooth. But are you familiar with these three fungi species ...

Symptoms The black knot fungus attacks twigs and branches with infections starting on the youngest growth on the tree. Infected trees will have brown gall-like structures called knots enveloping ...

Symptoms The black knot fungus attacks twigs and branches with infections starting on the youngest growth on the tree. Infected trees will have brown gall-like structures called knots enveloping ...

Symptoms The black knot fungus attacks twigs and branches with infections starting on the youngest growth on the tree. Infected trees will have brown gall-like structures called knots enveloping ...

Symptoms The black knot fungus attacks twigs and branches with infections starting on the youngest growth on the tree. Infected trees will have brown gall-like structures called knots enveloping ...

Symptoms The black knot fungus attacks twigs and branches with infections starting on the youngest growth on the tree. Infected trees will have brown gall-like structures called knots enveloping ...

Researchers found that trees in Wisconsin that had become hosts to the eye-catching species hosted only half the fungal ...