Cutting a healthy ash tree is permitted during a certain period of the year is permitted by the City of Sherbrooke if another tree is planted to replace it.
Felling a healthy ash tree costs up to 50% less than felling a diseased one. The money saved by felling a healthy ash tree helps finance the planting of a tree to replace the felled tree.
Call 819-200-2925 for more details.
Emerald Ash BorerSince 2002, there has been a flying insect in North America that comes to us from Asia. It is a type of beetle, whose body has metallic green reflections. At its adult size, it reaches almost half an inch. This beetle is called an "ash borer" simply because it attacks this tree. Its larva is white and builds sinuous galleries inside the wood. The adult beetle prefers to feed on the leaves.
If the insect was able to reach us, it was able to travel in ash wood materials: crates or pallets for transport, or firewood. It uses the same means to spread across Canada. Consequence for the ash treeThis insect is an invader. It is very difficult to control because it has no natural predators in North America. It can take as little as five years to kill a tree. Sometimes a single year is all it takes.
Generally, the attack is divided into four stages. The first stage lasts 2 to 3 years and the damage is largely undetectable. In the second, about a year later, leaves turn yellow in the summer and the tops of the trees are somewhat stripped of leaves. |
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About a year later, the tops are more noticeable and greedy trees are beginning to grow everywhere. At the fourth stage, about another year later, this time the gluttons are abundant, the tree loses bark and then dies. The EAB starts its attack from the top and then gradually moves down to the ground. When it is on the ground, the attack is sure to be extremely important. How does a tree reach this level of damage? Because the larvae make their galleries deep inside the tree and thus block the flow of sap.
However, as soon as one half of the tree is attacked by EAB, felling should be considered. Preferably, this should not be done between the middle of March and the end of September. Why not? Simply because this is the period when the EAB is spreading.
However, as soon as one half of the tree is attacked by EAB, felling should be considered. Preferably, this should not be done between the middle of March and the end of September. Why not? Simply because this is the period when the EAB is spreading.
How can you tell the Emerald Ash Borer is there?
It is possible that the slow degradation by the larvae may take place several years before any visible signs of invasion appear. But what are these signs or symptoms? First, internally, the larvae dig serpentine galleries. Then, externally, there are 4 mm holes in the shape of a capital "D". The insects dig them out of the tree. However, their backs are flat and their bellies are rounded, hence their characteristic shape. These holes are also known as exit holes. Another possible sign is bark detachment. This is removed by squirrels. In addition, woodpeckers will also make their holes in the trunk. In fact, squirrels and woodpeckers both feed on larvae. Finally, the samaras, the seeds of the ash trees, become overabundant, which is a sign that the ash tree is under stress.
To be able to act preventively, it is important to spot signs or symptoms of infestation early. Remember that they are first apparent from the top of the tree. These signs are: bark that cracks, splits, detaches, discolours, or sap that flows... these are all injuries caused by the larvae.
Detecting the signs very early is not a sinecure because they are almost invisible. Therefore, it is necessary to know about them.
Do you own ash trees? If so, you may have thought it a good idea to do your own insect detection. Except that you should know that the signs or symptoms may be the same for infestations caused by different insects. A specialist is able to distinguish between them and advise on the appropriate treatment.
To be able to act preventively, it is important to spot signs or symptoms of infestation early. Remember that they are first apparent from the top of the tree. These signs are: bark that cracks, splits, detaches, discolours, or sap that flows... these are all injuries caused by the larvae.
Detecting the signs very early is not a sinecure because they are almost invisible. Therefore, it is necessary to know about them.
Do you own ash trees? If so, you may have thought it a good idea to do your own insect detection. Except that you should know that the signs or symptoms may be the same for infestations caused by different insects. A specialist is able to distinguish between them and advise on the appropriate treatment.
The preventive stage of the infestation
In order to be able to discover the presence of the larva even before the first signs are visible, a technical protocol has been developed. It consists in choosing branches that meet certain characteristics, then barking them. However, this should be done during the interval when the larvae are the most voluminous, i.e. in autumn and winter. However, this technique should be left to connoisseurs.
Prevention
The safest way to be free of EAB is to keep it out of your garden. But you may already own ash trees. In that case, it is recommended that you diversify your plantation by purchasing a variety of species.
If you heat with wood, you should make sure that the pest is not present, if the ash species is part of your cord. It is best to buy local wood.
This is important because there are regulations from the Canadian Food Inspection Agency regarding the transportation of ash wood between contaminated and non-contaminated areas. Transportation between these areas is still possible, but conditions must be met. To be more specific, the products affected by these regulations are the following: first the trees themselves, then raw wood or bark, then ash materials such as logs, pallets, packaging material, chips, but also the vehicles used to transport them. Tree cabling
If you heat with wood, you should make sure that the pest is not present, if the ash species is part of your cord. It is best to buy local wood.
This is important because there are regulations from the Canadian Food Inspection Agency regarding the transportation of ash wood between contaminated and non-contaminated areas. Transportation between these areas is still possible, but conditions must be met. To be more specific, the products affected by these regulations are the following: first the trees themselves, then raw wood or bark, then ash materials such as logs, pallets, packaging material, chips, but also the vehicles used to transport them. Tree cabling