The evergreen tree is a beauty upon the year round landscape. The evergreen tree is a symbol of strength as the evergreen retains its color and needles even through the harsh winter months. People have fallen in love with the durability but yet simplistic grace of the evergreen tree. Unfortunately, there are several common diseases that affect the evergreen tree.
Evergreen trees can be killed or harmed by pathogens which are a disease-causing organism. The most common disease that affects the evergreen tree is caused by a type of fungi. Fungi lack the chlorophyll and therefore take nourishment from species in the evergreen family by feeding on these types of trees. Other tree diseases are caused from viruses and bacteria. An evergreen tree can become affected by a pathogen, viruses or bacteria in a number of different ways.
One disease that affects the evergreen tree is called needle cast tree disease. This is a disease that causes the evergreen tree to shed its needles. The symptoms of this type of disease will first appear on the needle. Needle cast tree disease appears as yellow spots on the needles which eventually turn red to brown. The growth of a certain species of fungi will form the spots on the evergreen's needles. When this disease is left untreated the needles fall off. Before the needles are shed tiny black fruiting bodies will form on the needle's surface.
Another type of disease that can affect the health of an evergreen tree is needle blight tree disease. There is a group of needle blight tree diseases that include Dothistroma, Diplodia and brown spot. These diseases are known to attack evergreen trees at the twig tips or the needles. The infected needle will fall from the tree due to the disease. When the needle falls from the tree this creates a denude look. If the evergreen tree is plagued by repeated cycles of infection then this can result in the loss of the tree. There are ways to prevent and to control needle blight tree disease.
A third common disease that affects the evergreen tree is canker tree disease. This is a type of disease where a canker either kills or causes blistering in the tree bark or the trunk of the diseased evergreen tree. There are dozens of known types of fungi that can cause this disease.
The last disease that can affect the evergreen tree is known as root disease. This is a wood decay disease. The fungi get in through the lower part of the tree or directly penetrate the root system of the tree. This fungus is able to travel from one tree to another on soilborne and airborne spores. If this disease is left untreated the evergreen tree will sadly rot from the roots upward.
Each of these diseases which affect an evergreen tree can be prevented or controlled. An evergreen tree is a beautiful natural resource that should be well cared for to ensure a long lifespan of the evergreen tree.
Avid full time hobby bonsai grower. As been practicing bonsai and gardening for more then 8 years. Owner of http://www.mishobonsai.com, a website with ressource for Bonsai seeds and Bonsai care
Article Source: http://EzineArticles.com/?expert=Patrick_Desnoyers
Sunday, November 1, 2009
Tuesday, August 11, 2009
Classification Of Trees
Tree is one of the most beautiful things which God has ever given us as a gift. I find very sad when people ignore them and don’t take proper care for them .We forget that they too are a living thing which doesn’t take anything form us but give us everything.
Trees can be classified according to the characteristics and features. Some trees are green and other is non-green depending upon the structure.
1. Deciduous trees: This kind of tree loses it green color and shades their leaves at the certain period of the season. They do this to adapt the climate and condition of the place. Their leaves start from bright yellow to different shades of orange. Ex: - black oak and plane tree.
2. Evergreen trees: This type of tree remains green all throughout the year whatever the condition would be. Ex: - pine and spruce trees.
3. Conifer trees: Conifer trees are more needles like leaves and most of the time they are evergreen and bear cones. Some of the examples of the conifer trees are spruce and cedar.
4. Flowering trees: This type of tree grow and create pleasing scenery for the nature with there beautiful different flowers. Such trees are pawpaw and mimosa.
5. Oak trees: These types of tress grow in wet areas and low lands of the mountain slopes. They are generally hard wood tree and flowers are clustered beautifully. The fruits they bear are called corn.
6. Christmas trees: This tree was form at the 17th century and said to be discovered by Martin Luther but later Prince Albert gave a gift to the queen Victoria which later spread world wide. People decorate this tree add lots of fun to the season of Christmas.
7. Ash trees: This tree had more than 70 types of different species. Scientist fails to discover the origin of the disease which kills this tree. They have long petals and valued for the timber.
8. Big trees: As the name signifies this type of tree grows at a great height and provides shelter and protection. Examples of such trees are sweet gum and oak tree.
9. Willow trees: This type of trees are found near the moist areas and grow very fast. Animals used to eat the leaves of this tree and at the same time used for making ornaments. They have both male and female flowers.
10. Shady trees: Shady trees are the tress which give shade and protection from sunlight as well as natural agents. They have nice big leaves and the branches of such trees are close to the each other which give them a nice shape.
11. Olive trees: This kind of tree is known for the wood and the green fruit and white leaves. The fruits changes blue to purple when the completely ripen. But it recommends to prepare the fruit before you eat the fruit.
All Trees are great and beautiful and the common things which all trees share is the valuable life saving gas called Oxygen.
So, Please Don't hurt them.
Trees can be classified according to the characteristics and features. Some trees are green and other is non-green depending upon the structure.
1. Deciduous trees: This kind of tree loses it green color and shades their leaves at the certain period of the season. They do this to adapt the climate and condition of the place. Their leaves start from bright yellow to different shades of orange. Ex: - black oak and plane tree.
2. Evergreen trees: This type of tree remains green all throughout the year whatever the condition would be. Ex: - pine and spruce trees.
3. Conifer trees: Conifer trees are more needles like leaves and most of the time they are evergreen and bear cones. Some of the examples of the conifer trees are spruce and cedar.
4. Flowering trees: This type of tree grow and create pleasing scenery for the nature with there beautiful different flowers. Such trees are pawpaw and mimosa.
5. Oak trees: These types of tress grow in wet areas and low lands of the mountain slopes. They are generally hard wood tree and flowers are clustered beautifully. The fruits they bear are called corn.
6. Christmas trees: This tree was form at the 17th century and said to be discovered by Martin Luther but later Prince Albert gave a gift to the queen Victoria which later spread world wide. People decorate this tree add lots of fun to the season of Christmas.
7. Ash trees: This tree had more than 70 types of different species. Scientist fails to discover the origin of the disease which kills this tree. They have long petals and valued for the timber.
8. Big trees: As the name signifies this type of tree grows at a great height and provides shelter and protection. Examples of such trees are sweet gum and oak tree.
9. Willow trees: This type of trees are found near the moist areas and grow very fast. Animals used to eat the leaves of this tree and at the same time used for making ornaments. They have both male and female flowers.
10. Shady trees: Shady trees are the tress which give shade and protection from sunlight as well as natural agents. They have nice big leaves and the branches of such trees are close to the each other which give them a nice shape.
11. Olive trees: This kind of tree is known for the wood and the green fruit and white leaves. The fruits changes blue to purple when the completely ripen. But it recommends to prepare the fruit before you eat the fruit.
All Trees are great and beautiful and the common things which all trees share is the valuable life saving gas called Oxygen.
So, Please Don't hurt them.
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