A tree blight is a rare disease that attacks a tree. It is characterized by small, white-colored round patches on the tree’s foliage. These patches range in color from red to black and may form anywhere on the tree, but are most common on the bark, trunk, or leaves of infected trees. While tree blight is generally harmless to surrounding plants, it can cause damage to the roots and can even kill a tree.
The causes of tree blight are usually fungi that attack the needles of the trees. These fungi attack the lower part of the needles which are often brown or yellow in color. Fungi commonly attack conifers, but tree blight can also infect the main trunk of a tree as well. When infected with fungi, the needles will break off and drop. The pieces of wood from these broken needles then enter the soil and can cause decay and damage to nearby plants and trees.
Some common fungi that cause tree blight are needle mould, yeast, and a group of viruses collectively known as Orthophidian fungi. Other fungi can cause similar problems to trees, including the destructive fungus called Botryits cinera. This fungus eats the heartwood of a tree. If left unchecked, it will eventually kill a tree.
Sometimes, fungi are not the only thing causing tree blight. Insects, such as aphids, can also attack a tree and affect the growth of the tree. Aphids are small insects that feed on the leaves of a tree. If an aphid infests the tree, the leaves will eventually die and new, brown leaves will grow in their place.
The dead leaves and needles that grow in place of the healthy leaves will block sunlight from reaching the rest of the tree, which in turn will stunt the growth of the tree. This problem is more serious when trees are situated near power lines. These lines may carry excess amounts of electricity, which can be harmful to the health of trees if the leaves become too dry and turn black.
In order to prevent tree blight, a few things should be kept in mind. When a tree is newly planted, it is important that it is planted so that it faces southward. This is because as a tree grows, it will need the sunlight to heat up its roots so that they can absorb the water and nutrients in the soil. Without this, the fungi may attack the roots as they grow and the tree may not survive.
It is especially important that the infected leaves and branches be removed. This will prevent them from spreading on the surrounding areas. After all, if fungi get into the leaves, they can remain there and infect other trees until they die. Once the tree is removed, it will also be easier to prevent the tree blight from spreading. If the infected leaves and branches are allowed to remain, the tree will eventually spread all over the neighborhood.
Some signs that a tree has developed tree blight include small gray or brown spots on the leaves or needles. If you see this, take the tree to your local nursery or garden center for treatment. The fungi will attack the leaves and cause them to wither and die. You can get some treatments at home to control the fungi before they have a chance to spread on the other plants in your area.
If the infection is already in place, you should make sure the tree is treated before it causes further damage. Fungi are particularly crafty when it comes to the environment they live in. Some species of fungi will infect just about any kind of tree and spread from one tree to another. Once fungi have infested a tree, it becomes extremely difficult to get rid of it.
Luckily, tree blight is easily preventable. If you see signs of fungus on a tree, it is best to take action immediately before the tree becomes damaged. There are a number of products on the market that will not only kill the fungi, but will also prevent new ones from spreading. You can spray the tree foliage with either a pesticide or fungicide. Both types will work to destroy the fungi and prevent new ones from establishing themselves.
Be sure to carefully read the label before choosing a product to use. Many products are labeled for use on certain species of trees. Always make sure to try the product out before you apply it to your tree. For tree blight, try a brand called Garden Tree Free. It has been shown to be highly effective and is highly recommended by local nurseries and tree experts.