1-2-Tree

Oak wilt is a vascular disease of oak trees, caused by the fungus Bretziella fagacearum*. The fungus grows on the outer sapwood of oak trees, restricting the flow of water and nutrients through the tree. Some oak species are more vulnerable than others and can die within a year of infection. In some severe cases, red oaks can mortality can occur within 2-6 weeks following infection.

Don’t prune or damage oak trees between April and October, as this is the most vulnerable time for overland spore spread. If pruning must occur, paint a thin layer of wound paint or shellac on thewound immediately. Wounds caused by storms or other events should also be painted immediately

Oak Wilt – Invasive Species Centre Oak wilt is a vascular disease of oak trees. The fungus grows on the outer sapwood of oak trees, restricting the flow of water and nutrients.

Oak Wilt

Please be aware

Oak wilt | City of London Oak wilt is an aggressive vascular disease caused by the fungal organism. The fungus grows on the outer sapwood and restricts the flow of water and nutrients through oak trees. This can quickly kill a tree within a few weeks.Oak wilt affects all species of oak trees. Oak trees belonging to the red o...

Only half of my maple tree has leaves. Is this a sign of maple decline?

Reduced leaf growth is a sign of a declining maple tree.

Other symptoms of maple tree dieback include:

Reduced twig growth

Small, dead branches in the upper tree canopy in late spring or early summer

Dead, brittle or decaying roots

Fall colored maple leaves in July or August

Over time, larger and more visible dead branches will appear, causing crown dieback in maple trees.

What causes trees to only have leaves on one side?

Consider what your tree was exposed to before its lack of leaf growth: Harsh weather? Insufficient planting space? A nearby construction project?

If your pre-construction planning didn't account for the safety of your trees, they could suffer. Construction damage can cause soil compaction and/or root damage to the tree.

Sparse leaves are also linked to abnormally cold winter temperatures and soil moisture. For example, frozen soil and frigid winds could cause one side of the tree to suffer more injury. A weakened tree is also more susceptible to diseases and pests.

Another cause of canopy thinning is girdling roots—which wrap around other roots or the tree’s trunk and cut off the flow of water and nutrients. When nutrient uptake is compromised, you’ll see the effects in the tree’s canopy.

In some cases, your tree may actually be infected with a vascular wilt fungus, like Verticillium. This disease is most common in trees that were already stressed for other reasons. Unfortunately, there is no cure, but reducing stress on the tree may extend its life.

Tree Pit Gardening / Watering

Tree Maintenance / Mulching

Trees needs regular maintenance in an urban environment

Mulching
Provides protection from w**d whacking and allows for moisture to be maintained

Healthy Tree Signs /
Unhealthy signs

Tree Trimming is important for the Health of your Tree -

https://www.arborday.org/trees/tips/

Ten ways to keep your Trees Healthy

Ten Ways to Keep Trees Healthy Proper tree maintenance is essential to their continued growth and ongoing health.