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Why raspberry leaves turn yellow and dry in summer, what to do

Why raspberry leaves turn yellow and dry in summer, what to do

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Anastasia Gennadievna asks us: "What are the reasons for the yellowing of raspberry leaves in spring and summer?"

In some cases, remontant raspberry leaves may turn yellow. Moreover, such a manifestation can be observed even in the middle of summer. Why is this happening and what to do? First of all, premature yellowing indicates that the site has adverse soil or climatic conditions. It is also important to consider the appearance of the shoots.

Reasons for yellowing

In summer, the plant turns yellow if there is a viral disease such as jaundice or infectious chlorosis. In this case, not only the leaves turn yellow, but also the stalks. Then they start to get smaller and dry.

If the leaves with shoots turn yellow, and the bushes become thickened and grow smaller, this is non-infectious chlorosis. Infectious chlorosis often manifests itself in the spring. This is a viral disease of a plant. It is transmitted with infected planting material or aphids. Raspberry turns yellow and with a non-communicable disease, which tells about the poor condition of the soil.

Features of jaundice

In spring, jaundice spreads quickly around the site. The signs of the disease are as follows:

  • the berries become small and have an unpleasant taste;
  • biennial and annual shoots turn yellow;
  • yellowness on raspberry remontant manifests itself unevenly. At the initial stage, greenish veins remain, then they disappear and the leaf turns completely yellow. The leaf is smaller, growth stops, the form remains the same.

After raspberries produce crops, chlorosis can be masked. The leaves become green again, but by the autumn period, the characteristics of the disease intensify. On two-year-old shoots, the leaves located above are more affected. Annual raspberry shoots become frail and lengthen.

Scientists have long known why infectious chlorosis occurs. It has already been proven that the disease is carried with infected planting material. The fact that raspberries are infected is told by its leaves. In the first part of summer, they turn yellow violently, and in the process of the appearance of berries, their appearance becomes autumn.

The plant suffers greatly from jaundice. Its productivity decreases, but the plant does not die completely. If the bush is transplanted, the signs of the disease will disappear.

Methods of struggle - what to do

  • If raspberry is sick with an infectious disease, they fight it the same way as with other viruses.
  • Use only healthy planting material. In the summer, select the most healthy bushes.
  • What to do if there are affected plants? Just delete them.
  • Browse your landings in early summer. Remote raspberries are burned. It is also important to properly care for the plant in the spring.

It is necessary to ensure that the leaves are not affected by aphids. Even if there are very few parasites. To do this, spraying of plantings with insecticides is carried out.

  • With proper care, the bush of repair raspberries will be more hardy, which means it is unlikely to become infected.
  • The leaves will be in perfect order, if you make mineral or dung fertilizers.
  • In addition to infectious chlorosis, the cause of yellowness can be a mosaic, growth or curl.
  • Observe agricultural technology.
  • Do not plant new bushes in place of old ones. Otherwise, the leaves will be yellow. Diseases are often transmitted through the ground.
  • Cultivate only resistant species.

You can also find out which varieties of raspberries are best planted in a summer cottage.

Non-infectious chlorosis

It should be understood why this disease occurs. The presented disease will appear due to poor climatic and soil conditions. In this case, yellowness is observed on different parts of the plant:

  • sepals;
  • leaves;
  • ends of shoots.

Ultimately, the leaves die off. The fight against the disease is carried out by the following methods: improved aeration, drainage of the site - in the event that chlorosis occurs due to high humidity.

Raspberry diseases and pests that cause leaves to turn yellow and dry

Timely measures taken will save raspberry bushes from drying out completely. But it is important to begin to understand why the problem arose in order to avoid its occurrence in the future.

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