Mediterranean oak borers (Xyleborus monographus) were first identified in the city of Sacramento last July. They target oaks ...

Cotoneasters (Cotoneaster spp.) are hardy, fire-resistant shrubs characterized by their thick, moisture-retaining leaves and low, spreading growth habit, which reduces flame height. Ranging from ...

Researchers release parasitic wasps in attempt to slow fast-moving infestation of tree-killing emerald ash borer beetle ...

A few of Indiana's tiniest transplants — invasive worms, moths and beetles from overseas — have made massive changes to ...

Orono’s current tree population features excessive numbers of green ash, which make up 26 percent of all inventoried species.

While the leaf damage is unsightly, unless a maple tree is in poor health due to the presence of other diseases or insects, the tree will survive.

While the leaf damage is unsightly, unless a maple tree is in poor health due to the presence of other diseases or insects, the tree will survive.

While the leaf damage is unsightly, unless a maple tree is in poor health due to the presence of other diseases or insects, the tree will survive.

Denver has detected the invasive emerald ash borer in the Congress Park neighborhood and urges residents to identify and act on ash tree infestations.

The emerald ash borer, an invasive insect that’s killed millions of trees across the United States, was found in several trees in the Congress Park neighborhood.