Occasionally homeowners will notice small holes in the trunks of landscape trees. This may not mean impending death to the tree, but it’s not good. The presence of holes usually means that an insect ...

When tiny holes appear on a tree, they often tell a story. These could either be due to harmless nesting activity of some animals, or they could be insect infestations that threaten a tree's survival.

Models of complex life cycles predict that greater mortality of immature stages should induce earlier metamorphosis at smaller sizes. We tested for effects of one source of mortality, habitat drying, ...

Pick a tree at random anywhere in Southern California and examine it closely. Chances are good that you will find small wet stains on its trunk. Those wet stains are most likely signs of a fatal tree ...

The sapsucker woodpecker is causing problems in the region, plus other reader inquiries about ash trees dropping leaves and transplanting lilies. A sapsucker woodpecker can cause damage to area trees ...