Methods of combating bark beetle on apple trees with drugs and folk remedies

Gardeners use different methods to combat bark beetles on apple trees. It is difficult to save trees affected by the beetle. The measures are effective at the initial stage. Advanced stages cannot be treated. Apple trees eaten by the beetle are destroyed. To protect the garden from pests, they resort to folk recipes and chemicals.

Biological characteristics of the bark beetle

The apple bark beetle is a brown (dark brown) colored beetle. Body length no more than 4 mm. Adults fly. The hard fender covers are covered with a pattern of dots in the form of parallel stripes. In the spring, during the period of mass flowering of fruit trees, insects begin to fly. Females choose a tree for themselves, gnaw holes in it, and lay eggs. Larvae emerge from them - white worms with powerful jaws.

The larvae cause the main damage to the tree. Until next spring they feed on wood and eat away the trunk. Before becoming adults, they pupate. In spring, the development cycle repeats (adult, egg, larva, pupa, adult).

Types of bark beetles

Bark beetles are a threat to trees, wooden buildings, and wooden products. There are 750 species of tree pests in the world. The most common types:

1. Sapwood.
2. Luboed.
3. Printer.
4. Furniture sharpener.
5. Wood-boring beetle.
6. Xylophage.
7. Shashel.

Why is bark beetle dangerous for an apple orchard?

A small beetle can destroy an entire garden. As a victim, the bark beetle chooses fruit trees that, due to improper or dense planting, have a poorly developed root system and mechanical damage to the bark.

There are times when pests attack a completely healthy apple tree.

Pest larvae eat wood around the entire circumference of the trunk. The nutrition of the tree deteriorates, and infection penetrates through numerous passages. Apple trees die due to lack of nutrients and fungal diseases.

How to detect the presence of a bark beetle: traces and signs of parasitism

It is necessary to inspect the trunks of apple trees in order to identify the pest in time. Birds flying into the garden can become indicators. You should be wary if a woodpecker is operating in it.

Visual signs of the apple bark beetle:

• holes on the surface of the bark;
• gum drips;
• dust, the structure of which resembles fine sawdust.

The color of the debris determines the degree of damage. Dark - initial stage. The beetle did not penetrate deep into the wood tissue. Light sawdust indicates that the beetles have eaten deep into the wood and it will be difficult to save the apple tree.

Fighting the parasite using chemical components

First of all, the degree of damage to the tree is determined in order to determine how to deal with the beetle. All methods will be useless if the bark falls off in pieces. If it holds firmly and there are few holes in the trunk, the apple tree can be saved.

Types of funds

Insecticides are used to control bark beetles. Preference is given to broad-spectrum drugs. They penetrate deeply into the wood tissue and act on larvae and adults. With the help of chemicals, the crowns of fruit trees are treated before the start of the beetle's summer. Repeat spraying after 2 weeks. In addition, the trees are fed with fertilizers, sanitary pruning is carried out, old stumps are removed, and traps are hung around the garden.

"Senezh-Insa"

This product for processing wood and lumber products is produced by the Russian company Senezh. The aqueous concentrate is sold in plastic containers of 5 liters and 60 liters. The product penetrates deep into the wood tissue. Processing results:

• larvae and adult beetles die;
• bacteria and fungi do not multiply;
• the drug repels new pests.

The cost of the product in a canister is about 600 rubles, in a large container - about 4,000 rubles.

"Clipper"

Russian insecticide-acaricide, an analogue of the drug "Tolstar", produced in the USA.Intended use: pest control on vegetable crops. The product can be used in greenhouses.

Release form: emulsion (concentrate), packaging:

• containers with a volume of 5 l;
• 1 liter bottles.

Preventive apple tree processing carried out a week before the mass flight of beetles. The protective effect lasts from 20 to 30 days. Treatment of trunks (⅔ height) is carried out using an industrial sprayer, a 3% solution is prepared. “Clipper” destroys bark beetle larvae and adults and kills other garden pests.

"Vitalizer NV-101"

Non-toxic drug, all active ingredients are of natural origin. The tree is protected from pests and infections by an extract obtained from plants (plantain, pine, cypress, cedar). Release form HB-101: granules, liquid.

Processing scheme:

• after flowering, first spraying of the apple tree;
• The 2nd and 3rd treatments are carried out with an interval of 7 days;
• the solution is prepared from 10 liters of water and 1 ml of the drug.

"Bi-58"

The German remedy is effective against beetles and larvae. When it enters the intestines, it causes their death. The drug has the form of a concentrated emulsion. It is packaged in containers ranging from 1 to 10 liters. "BI-58" can be mixed with the drug "Clipper". This enhances the therapeutic effect of the insecticide. The product is toxic to humans and bees.

It must be used carefully, strictly following the manufacturer's recommendations.

Scheme of treatment and prevention with drugs

A rough action plan will help treat apple trees for bark beetle and carry out preventive treatments.

Traps and repellers

Special traps treated with pheromones are sold in gardening stores. They are laid out in the garden in spring to early summer. The smell attracts adults. Traps with beetles are destroyed.

The principle of operation of repellers is different. The devices emit a threatening odor or a danger signal. By doing this, they force the beetles to look for another habitat.

Injection of the barrel

You can get rid of the beetle in the early stages of infection by injecting. Solutions of drugs can be injected into the passages:

• "Anti-bug";
• "Calypso";
• "Confidor";
• "Karbofos".

To carry out the work you need a large volume syringe. Processing stages:

1. Preparation of the solution.
2. Injecting fluid into the hole.
3. Covering the passage with garden varnish.

Traditional methods

If beetle passages are detected, the trunk of the apple tree must be coated with a mixture of manure and slaked lime in a 1:1 ratio. Dense application guarantees a positive result. Damaged apple trees can be treated with a solution prepared from the following ingredients:

• water 10 l;
• liquid soap 2 l;
• carbolic acid 2 kg.

Stimulation of apple tree immunity to protect against bark beetle

Weakened apple trees suffer from the bark beetle.The wood of a healthy tree is strong, making it more difficult for beetles to survive and reproduce there. Measures that increase the protective powers of apple trees are carried out to prevent the pest.

Activate the immune system, improve the quality of photosynthesis with the help of “HB-101”. Stages of preventive measures:

• In the spring, seed granules around the perimeter of the tree trunk;
• after flowering, spray the crown 3 times with a solution (1 ml of product per 10 liters of water), an interval of 7 days.

Using the “Rich-Micro” fertilizer, tissues are saturated with microelements. Fertilizing increases resistance to infections and pests. Apply “Rich-Micro Copper + Zinc + microelements”. When preparing a solution, dissolve 1 tbsp in 10 liters of water. l. fertilizers The treatment is carried out per sheet 4 times with an interval of 7 days.

To increase stress resistance, apple trees are watered with Gumi-30 Universal solution once every 2 weeks. Paste (100 g) is diluted in water (200 ml). The concentrate is used to prepare a working solution. For 10 liters of water add 1 tbsp. l.

It is difficult to save a tree affected by bark beetle. Planned preventive treatments of the garden with modern preparations are the best option for combating the beetle.