Tag Archives: Oak Wilt

Tree Diseases to Watch Out for in Spring and Summer

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Trees are a living species just like humans and animals, which means they can become sick, and even die, from disease. Although there are several types of diseases that can affect landscaping trees and shrubs in the spring and summer, you can feel better knowing that there are even more ways to protect your trees from harm.

Continue reading to learn a few of the most common tree diseases, and what you can do to ensure they are well-protected season to season.

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Fishers Dead Tree Removal 317-537-9770

Anthracnose

Anthracnose is a fungal disease. It is caused by a group of fungi that attack foliage and yields of trees. Although it can attack all trees, the most common victims are Sycamore Trees and Flowering Dogwoods. The disease causes premature leaf defoliation and a twig blight that leads to witches blooming. To prevent this disease, apply fungal treatments and pesticides to tree leaves two weeks prior to budding. You may also benefit from trunk injections with systematic fungicides.

Heart Rot

Heart rot is a common fungal disease that can affect all species of hardwood deciduous trees. The most common victims include birch, beech, cedar, dogwood, and maple trees. It causes the wood from the center of the trunk to rot from the inside, out. Damage to tree branches is generally the cause of heart rot, so treatment can be challenging. Incidents like fires, improper pruning, pest infestations, and other types of structural damage is a common cause for heart rot.

Powdery Mildew

If you have seen tree leaves and plants covered in a white powder-like substance, you may have witnessed a disease called powdery mildew. It is caused by a variety of fungal pathogens that grow on top of the foliage, and essentially looks like flour sprinkled all over the foliage. But this powder is not powder at all; it is called white mycelia, which are fungal threads and spores. Treatment for this disease is tricky, but it can be prevented by planting in proper areas.

Oak Wilt

This disease primarily affects Oak trees. It is a systematic fungal disease that unfortunately fatal. Symptoms include leaf wilt, leaf discoloration, and foliage loss. The most common regions where Oak Wilt is predominant include New York, Pennsylvania, Minnesota, South Carolina, and Texas. It is transmitted by beetles and root graphs. Red Oaks cannot be treated, but most Whites can.

Worried Your Trees are Sick or at Risk of Disease?

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The Most Common Tree Diseases in North America

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Trees can fall ill from disease and infection just the same as any other living organism. In America, trees can be victim to several diseases; some of which have no treatment or cure. It is important to protect our trees from hazardous elements and harmful exposure; however, in nature, these things tend to take their own course no matter what. Continue reading to learn about the most common tree diseases known and seen in Indiana, and how to safeguard your property from these damaging ailments.

Heart Rot

Heart rot is a fungal condition that affects the integrity of a tree’s trunk, bark, branches, and structure. The disease attacks hardwood trees specifically, such as oaks, walnuts, ash trees, birch trees, poplars, and all other types of deciduous trees. It weakens and rots the bark from within; even more so in harsh weather and windy conditions. It creates a danger zone for anything surrounding the tree below. Heart rot has caused trees to tip, bend, and fall onto homes, cars, and other expensive assets. Some signs of Heart Rot include:

• Fungus Growth
• Protruding Mushroom Caps
• Leaning Tree Trunk
• Wood Decay
• Fungus Conks
• Mold
• Etc.

Healthy trees will naturally combat Heart Rot with a process called compartmentalization. In order to get healthy trees, routine maintenance is essential. Regular pruning, fertilizing, wound care, and more is vital to sustain a tree’s immunity. A local tree service company or technician can give you all the tips and advice you need for DIY tree maintenance.

Chestnut Blight

Chestnut Blight is a disease that affects the American Chestnut Tree. This tree was once one of the most important timber trees in early twentieth century society, until a devastating Chestnut Blight epidemic took effect. It wiped out nearly all of the Chestnut tree population in North America, leaving behind very few mature trees today. Chestnut Blight is a pathogenic fungal disease that enters through tree wounds and grows from within. Just like Heart Rot, it will eventually weaken and decay the bark; jeopardizing the structural integrity as a whole. Evidence of Chestnut Blight can include symptoms such as:

• Tree Cankers
• Callus Formations
• Swelling and Cracking of Bark
• Wilting Leaves
• Fallen Branches
• Browning Leaves
• Leaning Tree Trunk
• Wood Decay
• Discolored Tree Bark
• Etc.

Oak Wilt

Another common fungal disease that can kill trees is called Oak wilt. As the name describes, it only primarily species of Oak trees; however, it can harm other species of tree as well, but in a different way. Red Oaks have proven to be more susceptible to Oak Wilt than species of White Oaks. Examples of Red Oaks include Black, Red, and Northern Pin; while examples of White Oaks include Bur, White Stamp, and other round-leafed species. The disease is locally spread from infected trees to healthy ones by insects and plant roots. The infection causes the crowns of Oak trees to reduce and die. It also harms the bark, leaves, and tree branches. Signs of Oak Wilt include:

• Bronze-Colored Leaves
• Branch Loss
• Dead Crowns
• Leaf Wilting
• Discolored Vascular Tissues
• Brown Stains Under Bark
• Etc.

To reduce the likelihood of infected trees on your property, be sure to provide them with proper routine maintenance and care, year-round. Trees require checkups and upkeep just as we do. Recommended tree maintenance includes trimming, pruning, topping, fertilization, dead wooding, and more. It is best to consult a tree service company for professional advice and information on residential or commercial tree care.

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What is Oak Wilt Tree Disease?

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Oak trees are among the most majestic and beautiful trees in Indiana. They provide an abundance of benefits, and service even more purposes. But just like all living organisms, Oak tree are vulnerable to disease and illness too. One of the most common forms of oak tree disease is called oak wilt, and affects hundreds of acres of oak trees each year. Continue reading to learn more about oak wilt and how to manage a tree with this disease.

Oak Wilt Disease

Oak wilt is an intravenous fungal disease that attacks the vascular system of an Oak tree. It inhibits water and nutrients from accessing the tree’s canopy, causing the entire tree to suffer. There are two primary ways oak wilt disease is spread. The first and most common means of oak wilt transmission is root grafting. Root grafting occurs when the root systems of two separate trees come together and share water and nutrients. This is very common for trees that are close together. So if one tree becomes infected with oak wilt, and it is grafted with another tree’s roots, it can spread the disease to the other tree.

The other common form of oak wilt transmission is through beetles. Nitidulid beetles can carry oak wilt fungus from one tree to another. They are most active during the months of February to June, which is why you should never trim oak trees during this time of year. Nitidulid beetles are attracted to wounds in oak trees, so if an oak tree is newly trimmed during their active time of year, Nitidulid beetles will go for the fresh cut marks in the tree and potentially spread disease. For this reason, be sure to only trim Oaks between July and January. If an oak tree must be trimmed between February and June, pruning paint can protect against Nitidulid beetles and other pests.

The only effective method of treatment or preventative care is fungicide injections. Once oak wilt is identified within 200 feet of your landscaping trees, it is a good idea to proceed with fungicide injections for precautionary purposes. But preventative precautionary fungicide injections are not always effective. Once a tree is infected with oak wilt, the only fungicide treatment that can cure it is called Propiconazole. Again, treatment is not always effective. Talk to your local arborist for information about protecting your landscaping trees against disease and other hazards.

Tree Service in Fishers, IN

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Identifying Common Tree Diseases

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When it comes to landscaping trees, most diseases are simply aesthetic and can be treated without problem. However, there are several other types of tree illnesses and threats that can both harm and kill trees. It is best to treat an unhealthy tree as soon as you are aware there is a problem. Perhaps your tree leaves are turning brown and curling at the ends, or the bark is starting to peel off. If you are noticing a decline in your tree’s health, it is time to consider professional tree care and assistance. Catching a tree disease early on can save the lives of your landscaped trees, as well as, all other flora on and around your property. Continue reading to learn more about common tree diseases, and how to identify them in their early stages.

Emerald Ash Borer

The Emerald Ash Borer is a tree beetle that attacks Ash Trees and never hangs out alone. They come in large colonies that can quickly infest trees and deprive them of food and nutrients. These are moderate-sized green beetles with shiny backs and exoskeletons. They are known to make S-shaped larval galleries in the outer bark of trees, and D-shaped emergence holes to exit them. These carvings are tale-tell signs of an EAB attack. These beetles can quickly harm or kill a tree. Signs of an EAB infestation include crown dieback, or when the canopy of trees begin to die and expose dead tree branches. Other signs include bark splitting, epicormic sprouting, and woodpecker feedings. Woodpeckers love to eat Emerald Ash Borers, so if you see a crowd of them on a tree, you can assume it is infested. Epicormic sprouting is when a tree becomes desperate to grow new branches, and begins new growth towards the bottom of the trunk. To get rid of these beetles, a professional Fishers Indiana Tree Care specialist is required.

Oak Wilt

Oak wilt commonly affects, you guessed it, Oak Trees. This diseases is commonly found in White Oaks, Red Oaks, and live oak trees. It is commonly found in Eastern parts of the United States, and is one of the most serious tree diseases around. Forests and landscapes are losing thousands of Oak Trees each year to Oak Wilt disease. It is a fungus that infiltrates wounded or weakened trees. The seriousness with this disease has to do with the fact that the fungus can move from tree to tree, through the root system or through insects. Unfortunately, once an Oak tree is infected with this particular fungus, there is no cure.

Chestnut Blight

This is another tree fungus disease that affects Eastern regions of the United States. It prefers hardwoods, like the American Chestnut Tree. In the past, professionals have tried to cut and remove the roots of infected trees to stop the spread of the fungus; however, it wouldn’t go away. Although it seems there is no cure for this disease, it seems to act as a nonfatal parasite to some species; such as Chinquapin trees, Spanish Chestnut trees, and Oak trees. WE only hope this fungus can one day be controlled and treatable.

Tree Care Fishers, Indiana

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