The tree has a dense, highly resinous wood that is a formidable barrier to invasion by insects and bacteria. The resinous wood and the White Mountains' cool, dry climate also appear to keep rot ...

Insects that we may bring home with the Christmas tree Most insects are dormant during the cold winter, yet they can become active at room temperature. Unsurprisingly, their presence on the ...

Researchers report on the influence of an endophytic fungus of the genus Cladosporium on the defense of black poplars against herbivorous insects. The fungus, which lives inside the leaves, not only ...

The trees are preferred hosts for an invasive species first reported in the state in 2014. They've since infested some areas.

A prickly Cladonota biclavata patrols a tree near Ecuador’s Napo River ... around with them,” says Chris Dietrich, curator of insects at the Illinois Natural History Survey.

Plant loquat trees during the early spring or late fall when the weather is cool. Dig a hole that is twice as wide and as ...

The International Society of Arboriculture's site helps homeowners find certified arborists, plus Neil Sperry sheds light on ...

In Fielding Questions, readers also asked about specific apple tree sprays and commiserated about fake hosta seeds.

Analysis - Many African governments have set ambitious goals to plant trees as a way to combat climate change, restore ...