Causes of yellowing of pear leaves
When the leaves of a pear turn yellow, this is the first sign of the disease.
Causes of yellowing of pear leaves
Gardeners sound the alarm - if something does not grow well in the garden or does not give the proper harvest. But there are several reasons why
Causes of yellowing of leaves
When growing pears, summer residents often find that the leaves turn yellow and fall off, the tree stands almost "bare", although it is mid-summer. The condition of the green cover can be affected by minuses in the care or attack by pests. There may be several reasons:
- Lack of minerals in the soil - the soil on which the pear grows is a very important element in the life of the plant. Magnesium, potassium and iron - provide green color, it is these elements that promote the exchange of chlorophyll.
- Uneven watering - if the plant lacks water, then it will not be able to absorb nutrients from the soil. But if watering is carried out in dry and hot weather, then the leaves can get sunburn.
- Mosaic is a disease that affects the leaves, they become covered with yellow spots. The deciduous cover changes color from bright green to light yellow.
- Ingress of herbicides - when treating pests or diseases with chemicals, residues can fall on the leaves, which causes their premature death.
- Ground pests - moles can damage the root system and cause yellowing.
- Deepening of the roots - if, when planting, the seedlings were planted very deeply, and the root collar was 10-15 cm below the ground line, then the tree gradually weakens, the crown turns yellow, and it ceases to bear fruit.
- Scab - the development of this disease leads to yellowing and leaf fall. The deciduous cover, after full budding, is affected by the disease and begins to become stained.
- Chlorosis is a disease caused by prolonged drought, flooding of the soil and leaching of organic and mineral substances. The gardener's first step should be to choose the right feeding.
- Ticks - The crown can change color and fall off after ticks appear. These small pests feed on the sap of young, still green leaves and are not afraid of pesticides.
- Moniliosis is a dangerous disease in which not only the crown turns yellow, but also the branches and trunk dry out. It is necessary to carry out chemical treatment immediately after flowering so that this fungal disease does not manifest itself.
If the leaves on the pear turn yellow, we can say that one of the above reasons affected the plant .. And if the problem manifests itself on young trees, then you need to check if the trunk is damaged or if the tree is frozen due to low temperatures.
Control measures
The affected areas must be removed
Ways to combat yellowing of pear leaves:
- If there is a lack of iron and potassium, it is imperative to feed. It is best to fertilize in early spring and autumn with Bordeaux liquid, iron vitriol and potash fertilizers.
- When pears grow in acidic soils, they may lack magnesium. To fill the soil with the necessary elements, it is necessary to add wood ash, dolomite flour and various mineral fertilizers.It is better to combine potassium and magnesium fertilizing, then the fertilizers will be absorbed better.
- If the weather is very dry, then the pear should be watered once a month. But if the soil is mixed with sand or the temperature exceeds 32 degrees, then the volume of irrigation needs to be increased.
- But if the crown turns yellow from the mosaic, then the plant may die. This disease is not treatable, so the affected branches and other parts of the plant must be cut and burned. And if necessary, you need to cut off the whole tree.
Caring for a pear is a complex of actions, and in order to know what we are doing wrong, we need to constantly monitor the condition of the branches and leaves, because if the leaves of the pear turn yellow, the plant needs to be saved at the very first stage of the disease.
Prophylaxis
It is possible to prevent the appearance of diseases if the treatment against pests and diseases is carried out in time. The most common reasons that some of the leaves of a pear turn yellow are mosaic and aphid diseases.
Of course, when buying seedlings, you need to check their condition and know the seller, otherwise the plant cannot be protected from the mosaic disease. When you need to graft a pear, you need to check the quality of the grafting material. When trimming, the instruments must be clean, even sterile.
Aphids spread very quickly in the garden, so when they appear, you need to immediately exterminate them. It is imperative to spray with chemicals. You can also use folk remedies: a solution of tar soap, tobacco, garlic, in order to reduce the number of aphids in the garden, if it has already appeared.
Aphids are also carried by ants, which must be destroyed. It is possible to prepare bait made of millet, boric acid and sugar for small pests. Chemicals or ant traps are effective. All this can be purchased in stores or made at home from improvised means.
Conclusion
If the leaves of a garden pear turn yellow, you need to immediately find the cause and try to eliminate it. Adhering to simple care rules, you can never face diseases and pests.