Causes of pear leaf curl

The leaves of a pear are a reflection of its condition. If the leaves of a pear are curled, you must immediately determine the source of the problem.

Causes of pear leaf curl

Twisting can be fought both by folk methods and by chemical means. It depends on the factor that affects this process.


  • insufficient moisture;
  • the plant does not receive enough nutrients;
  • freezing of the roots of the plant;
  • the effects of bacterial infections and diseases;
  • defeat by various pests;
  • lesions by different viruses.

In order to find the reason for twisting the leaves on the pear, you need to carefully examine the plant to determine the circle of damage. This unpleasant phenomenon can be eliminated by preventive spraying of a tree, however, in some cases, cutting down a pear may be necessary.


An adult tree needs 2-3 buckets of water for 1 year of life.

To protect the crop during drought, it is important to mulch. You can sprinkle peat, grass or even paper. So the soil of the trunk circle will retain moisture longer.


You can prevent twisting by the method of timely top-dressing:

  1. Calcium. From its lack of foliage begins to blacken, and the edges gradually curl up. To prevent this, the pear needs to be fed with ash. For 1 sq.m, 3-4 glasses of ash will be required. It is sprinkled with a tree trunk circle, immediately after that the pear needs to be watered so that all the nutrients get to the root system.
  2. Boron. It happens that with a lack of this element, the leaves on young seedlings begin to spin, and new branches stop growing and developing, because all metabolic processes are slowed down.
  3. Phosphorus. From its lack, the lower leaves become small, blacken, curl, and then crumble. To eliminate this problem, you need to take 15-20 kg of superphosphate per 100 kg of manure and use this product to fertilize the tree. If fed with superphosphate and manure separately, then there will not be the desired result.

It is important to adhere to all agricultural activities. If damaged leaves are noticed on the fruit crop, they must be removed immediately. It happens that the circle of defeat extends to the branches, they also need to be cut.

Bacterial and fungal infections

If top dressing of the crop was carried out, and positive results were not noticed, then most likely the tree was struck by a disease such as groove of the trunk.

It manifests itself already in early spring. Cracks appear on the trunk, which open the way for various infections. In the tree, all metabolic processes between the root and upper part of the culture are disrupted. Most often, this disease affects plants 2-3 years of age. If the seedling is younger, then it dies.

A diseased tree cannot be treated

Furrowing provokes a painful microflora, which gets along with rainwater through mechanical damage. If the leaves are curled, then this is the initial stage of the disease. Over time, the fruits become stained. And in the end, the tree looks charred.

The only way out is to chop down the pear, dig up the roots and burn it all. And in the place where the infected plant grew, do not plant anything in the next 2 years.


One of the most common pests that causes leaf twisting is aphids. The affected leaves first turn black, then curl up, and then completely fall off. This small insect can be combated with folk methods and chemical agents.

Folk methods

This method is harmless and is the most economical. Aphids multiply rapidly, which negatively affects the development of pears. And to stop its disastrous effect, use the herbal tincture of celandine.

To prepare it, you need to take 4-5 branches of celandine. Grind them (always with gloves) and add to 1 bucket of boiled water. The infusion should be covered and left warm for 5 days. For the solution you will need 200 ml, which must be diluted in 10 liters of water.

Spraying with this agent should be carried out 3-6 times (this depends on the number of pests). The average interval is 5 days.


Chemical preparations should be used to treat aphid culture with extreme caution, 25-30 days before harvest.

To control the pest, you can use the following drugs:

  • Kinmix. This tool is used in early spring, before the development of the kidneys. To process the culture, you need to take 2.5 ml of the drug and dilute it in 1 l of water, after which this solution is diluted in 10 l of water and the pear is sprayed. This tool protects the culture from 2 to 3 weeks.
  • Agravertine. Apply before the beginning of the flowering period. First you need to dilute 5 ml of the drug in 1.5 liters of water, and then pour this solution into 10 liters of water. Leaves need to be processed very carefully so as not to leave pests. Otherwise, there will be no sense from spraying.
  • Spark. Strong drug. He fights not only with aphids, but also with other pests. For the solution, use 1 tablet of the drug per 10 liters of water. The tool can be used after fruit set.

All chemicals should be used according to the instructions and at a temperature not lower than 16 °, but not higher than 25 °.

The combined use of these funds will be an excellent method of controlling twisted leaves in the early stages. Chemicals are recommended to be used only in emergency cases, when there is a serious threat to the plant and alternative methods do not help to solve the problem.


To prevent damage and twisting of pear leaves, you still need to perform some preventive actions in time:

  • do sanitary pruning of the crown;
  • comply with all the rules of watering and fertilizing the culture;
  • constantly clean and destroy fallen leaves;
  • handle the trunk with lime.

In early spring, trees are recommended to be treated with Bordeaux fluid. To prepare it, you need to take 100 g of copper sulfate and 100 g of quicklime on 8 l of water. If the mixture is prepared correctly, then it acquires a sky blue color with a dark blue sediment.

You also need to remember that the solution is used on the day of preparation, because after a day it loses its beneficial effect. Spraying can be carried out several times, but not during the flowering period.

Young leaves are curled on a pear also due to freezing of the roots of the plant. To avoid this, the tree needs to be fed with mullein in the fall, and in early spring, complex nutrition and protection measures should be carried out.


Twisting the leaves on a pear is a common occurrence. It is important to quickly find the reason because of which it was formed. The choice of a method of action in the fight against twisted foliage depends on this. There are chemical and folk remedies, agricultural measures.

Chemicals are used for serious diseases, folk - for a small infected circle. Agrotechnical techniques help prevent the appearance of curled foliage.


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