Getting rid of the bark beetle: 4 ways to protect

Bark beetle is a dangerous pest that can destroy a fruit tree or shrub in a short time.

Making the moves and laying the larvae both in the bark and deep in the woody tissue, insects multiply rapidly.

The fact that a tree is struck by a bark beetle can be recognized by seeing a handful of very small sawdust on the ground around the trunk.

If the sawdust will be brown in color, it means that the pest has so far gone deeper and is located directly in the layer of bark.

White and pinkish sawdust suggests that bark beetles have penetrated deep into the trunk. So, it will be more difficult to deal with them.

There are several forms of struggle with the bark beetle. Consider the main.

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Means of fighting bark beetles

Preventive control measures

Bark beetles choose diseased or weakened trees. Conclusion - in order to prevent pest infestation, plants must be kept in good shape.

Properly water, do timely pruning, fertilize and weed the tree trunks.

If there are separate bark beetles in the vicinity of the garden, the surest solution would be to cut and burn them to stop the infection.

Mechanical methods

In the period after flowering of fruit trees and before the onset of cold weather, beetles can emerge from under the bark. It is at this time that they become vulnerable to spraying chemicals.

Some gardeners use late spring and summer to also mechanically clean the affected tree trunks.

To do this, take a solid wire and push it into the already made moves, trying to destroy the pest nests located there as much as possible.

As a rule, mechanical methods are combined with barrier protection.

Barrier Protection

This type of protection includes spraying with chemical preparations, as well as their alternative or addition - intra-stem injection.

1. Spraying - fairly reliable way. But, unfortunately, it has side effects. Insecticides or fungicides can get on the next cultures, kill useful insects. Moreover, substances are absorbed by the tree for quite a long time, losing a significant part of their properties along the way.

So the bark beetles are no longer a serious dose of poison. And, I must say, these insects can adapt to this or that chemical, and that which did not kill them can make them stronger - they mutate and will no longer react to such a drug in the future.

In general, despite what kind of drug the grower decides to spray his possessions, it will take at least 3-6 times a year. Otherwise, the bark beetle will win.

2. Recently, an innovative method of fighting bark beetles has become more and more popular. tree shots.

The essence of this technique is as follows: with a special device designed to maintain a certain pressure inside the trunk, a correctly chosen preparation is inserted into the infected tree.

"Properly selected" - that is, divorced in the right concentration, taking into account the degree of infestation of the tree, its growth, age.

The fight against the bark beetle-typographer, conducted recently in the territory of Russia, has led to gaining valuable experience. It became clear what drugs to use, what tools to use.

After all, with an incorrectly selected chemical, blockage of the vessels of the tree may occur, along which the juices move - moisture and nutrients.

The composition of the vaccine should include the means that facilitate the transport of drugs within the tissue of the tree. It is important that the opening through which the drug was injected was subsequently hermetically closed.

Therefore, only experienced gardeners can afford the independent application of this method.

Beginners are better called professionals: conventional syringes and improvised methods of intrastyle injection, of course, are not done.

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Biological traps

This type of protection includes the use of pheromone and antiferomonic drugs.

1. Pheromone preparations. They are called to attract all insects to this tree - but then it is doomed.

And we must bear in mind that the affected plant will have to be cut down and burned - but all the bark beetles that threatened the garden will burn in the fire.

Pests, thanks to the biological trap, will be collected on one tree, one and all. However, pheromone traps can attract beetles from a distance of up to 7 kilometers.

So in the case of their use, it is better to first calculate all the risks - whether you need so many uninvited guests in the garden, even if you have a chance to deal with them quickly.

Suddenly a part will survive, and then what? Experts have found that in the gardens with an area of ​​less than 10 hectares, this method of protection does not justify itself and there may be too many trees at risk.

2. Antiferomone drugs. Antiferomones, on the contrary, scare bark beetles. In the natural environment, the insects themselves emit this smell, signaling that the tree is fully populated and there is no room for new individuals.

The preparations developed on the basis of antiferomones perfectly protect not only trees, but also wooden structures. Especially good impregnation with antiferomones act in combination with injections.

Damage caused by the bark beetle

There are more than 750 species of bark beetles. About 140 of them are European. At the same time, European pests are much smaller than their tropical counterparts - they do not even reach 0.9 centimeters in length. While exotic species are the size of over one and a half centimeters.

Harm to gardens and vegetable gardens all these insects cause serious, especially during outbreaks of the population.

In recent years, cases of a sharp increase in the bark beetle-type printer, which caused the plight of plants in fairly large areas, have become frequent in Russia.

Bark beetles settle under the bark or in the wood itself, where their females gnaw through complicated winding passages and lay the larvae, making nests. But now one can observe the appearance of tropical species of bark beetles, which can also live in fruits, as well as in tubers of plants.

The harm that these pests cause is very serious. Not only do they quickly and thoroughly damage the bark and wood of trees, preventing the flow of moisture and nutrients, they also infect plants with spores of fungus, which is food for beetles and their offspring. And then the so-called "mushroom gardens", growing, kill the tree from the inside.

Due to the keen sense of smell, bark beetles (sometimes some of them are also called saplings) can smell the weakened tree they need at a distance of up to a kilometer.

First, beetles settle only in the circumference of the trunk, then penetrate inside. Lay eggs. The hatched larvae gnaw through their moves, resulting in a bark beetle nest.

Woodpeckers perfectly sense the pests that serve them as food. Therefore, the presence of a woodpecker in the garden, beating the trunk with its beak, is a sure sign that bark beetles have settled on the tree.

If this feature is complemented by small round or oval holes on the trunk, then the bark beetles have been living here for quite some time.

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Based on the above, we can draw the following conclusions:

  • the sooner the fight against the bark beetle begins, the greater the chances of winning.
  • Prevention is the best way to support trees and protect them. Bark beetles prefer diseased plants.
  • the choice of means of protection from the pest must be individual - depending on the species, variety, age and condition of the tree in the garden.
  • stem injections give the greatest effect - but they must be done correctly.
  • Woodpecker on a tree and small sawdust under the trunk is a sure sign of plant infection by bark beetle.

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