Urban trees lining streets fare better in dry spells than those in parks – now it seems that leaky water pipes are the reason ...

We saw some dieback in trees coming out of winter. In some cases, it is environmental stress from drought stress and winter temperature extremes. It may also be a canker disease. Cankers infect ...

Area maple trees are susceptible to iron deficiency Iron chlorosis can be treated but may lead to tree death. Maples are very suseptible to iron deficiency chlorosis in certain soil.

Tree planting is a long-term commitment. While you may want to cheat a bit and plant a fast-growing variety, there are some ...

Want to know what's ailing nearby trees? This index of common tree diseases and pathogens can help you identify and prevent further decay.

Figure 1: This crabapple tree was attacked first by fire blight and later by Botryosphaeria canker, killing the main trunk. Purdue Landscape Report: Dieback and canker diseases caused by ...

Trees are welcome additions in most backyards. Yet, this is only true when the tree suits your space. If you have a small ...

Learn more about diseases that affect Toronto’s trees. Find important definitions to help you understand threats to trees. Trees are resilient and can recover from most insect feeding and ...

In the worst cases, incisions created by female cicadas may not close properly, serving as entryways for canker diseases, which cause dead bark and wood on trees.

The beech forest in Massachusetts was already under threat from long entrenched beech bark disease. With this new foe now defoliating trees, one researcher termed the situation a one-two punch.

This disease occurs when the beech bark scale attacks the bark, creating a wound. Later, two different fungi common to North America can invade the tree through these wounds, causing cankers to form.