Reasons and treatment for why the stem at the base of cucumbers may dry out

There are many reasons why cucumber stems crack. This phenomenon can be caused by pests, such as the cucumber mosquito, or diseases that affect plant crops. Also, drying out and thinning of the stem can be caused by unfavorable environmental conditions and insufficient care of the plant.


Cucumber diseases

When planting seedlings in contaminated soil or spreading the infection along with water, the plant crop may be affected by various diseases that cause the stem to dry out. Also, a similar infection effect can occur when infected seeds are used to grow seedlings.

Anthracnose

A characteristic feature of this pathology is the appearance of black drying pigments on the leaf blades and stem of the tomato. With the subsequent development of the disease, it spreads to the fruits, the trunk gradually becomes thinner, as the spots deepen by 3-5 millimeters, dries out, and the leaves fall off. The reason for the development of anthracnose is the use of infected seeds for growing seedlings or planting of grown material in infected soil.

If this pathology is detected at an early stage, it can be cured. For this, Quadris, sulfur-based preparations, and Bordeaux mixture are used.

anthracnose disease

Root rot

Root rot can spread when a plant crop becomes infected with bacteria or fungi. Most often, a plant becomes infected when it is transplanted into contaminated soil or when seeds taken from diseased crops are used. Signs of pathology:

  • in hot hours the leaves become lighter and begin to dry out;
  • the root darkens and becomes rotten;
  • the plant stops growing;
  • the trunk located near the ground dries out and begins to crack.

root rot

When the root dies completely, the plant dies. The development of the disease can be stopped with the drug Fitosporin-M.

Gray rot

This disease manifests itself in the fact that the leaves, stem and flowers become covered with brown watery spots covered with a gray coating. If the disease progresses, the stem and leaves will dry out, and the plant will stop bearing fruit and die.

gray muck

When the pathology spreads, the affected areas are treated with a fungicide. The best option is to use Rovral or Bayleton. All affected parts of the plant are removed and burned.

Mosaic

In case of defeat cucumber mosaic, leaves begin to turn yellow and curl. If this pathology is not treated, the plant trunk begins to dry out at the base, and then a crack appears along its entire length. Most often, the first symptoms appear on seedlings. In this case, such seedling material should be thrown away.

If a mosaic is detected, it should be treated immediately: such measures will reduce the development activity or completely stop the disease. The planting should be treated with Aktara or Aktellik.

mosaic is knocked out

Sclerotinia

If the bush begins to thin out, most likely it is affected by sclerotinia. This disease affects all areas of the cucumber plant. A white coating appears on various parts of the plant crop, which gradually forms into black spots. In conditions of high humidity, the plant begins to rot.

If watering is stopped during this period, the cucumber stem begins to dry out, and the dry trunk will be covered with rotten plaque.

It is advisable to treat the disease exclusively at the stage of spread of white plaque. This should be done with the help of the drug Fitosporin-M.

affected by sclerotinia

Powdery mildew

If powdery mildew is not treated, this pathology dries out the stem of cucumbers. This disease can be recognized by the following symptoms:

  • at the initial stages: the spread of gray plaque with a pink tint on the leaves;
  • the appearance of black spots on the leaves, their drying out and wilting;
  • With the further development of the pathology, weeping areas and black discolorations form on the roots, causing the base of the stem to begin to dry out, the crown of the plant gradually dries out, and the crop dies.

powdery mildew

If the cucumber stems have dried out or begun to dry out, the affected bush should be removed from the area, otherwise powdery mildew will spread to other plant crops.

Downy mildew

Another name for this disease is peronosporosis. It belongs to the group of fungal pathologies and is spread when infected seeds are used to grow seedlings. The disease most often does not appear on seedlings, but is activated during the formation of a fruit-bearing plant. The disease develops internally, moving in a bottom-up direction. Signs:

false spots

  • the appearance of oily yellow spots limited to veins on the leaves;
  • Over time, the spots darken, the leaf dries out, and the stem is damaged;
  • the stem dries from the bottom up, the tendrils are damaged;
  • cucumbers die.

It is worth considering that this pathology grows very quickly on cucumbers, so it should be treated immediately - immediately after the detection of primary symptoms. For treatment it is necessary to use MC, Kuprosat, Ridomil Gold.

bad symptoms

Cladosporiosis

The reason for the development of this fungal disease is strong temperature changes, accompanied by an increase in humidity. Infection occurs when a fungus enters a healthy plant crop. Damage to a plant crop begins with leaves and stems. The primary symptom of the pathology is the spread of olive spots along the leaf and stem.

In advanced cases, the fruits are affected, the spots form into ulcers, the affected cucumber turns white, and the trunk begins to dry out.

Cladosporiosis should be treated immediately after the spots appear. This must be done using Bordeaux mixture or any preparations made on the basis of copper oxychloride. Treatment is carried out 4 times a season.

fungal cladosporiosis

Anthracnose

This disease is characterized by the spread of brown spots throughout the plant. In this case, the plant stops growing, its leaves begin to turn yellow and gradually dry out, and the base of the trunk begins to become thin.Activation of the spread of the disease occurs when the crop is watered with cold water, as well as sudden changes in environmental temperature.

What to do to eliminate anthracnose if the stem begins to thin? To combat this disease, once a week until harvest, you should spray the plant with 1% Bordeaux mixture. It is also necessary to treat each affected area with copper sulfate in a 0.5% solution. After applying copper sulfate, the treated area is sprinkled with coal or lime.

brown spots

Pests

Why does the stem of cucumbers dry out at the base if there are no signs of pathologies on the bush? Pests may be the cause of drying out cucumber stems. It is worth considering that most of them conduct their life activities in places invisible to the human eye.

first pests

Aphid

This pest is located on the inside of cucumber leaves. The plant reacts to aphids by curling up. Gradually, the leaves begin to fall off, and the stems crack and dry out. Infection of a plant by aphids is also dangerous because this insect is a carrier of a huge number of diseases that can aggravate the health of the plant crop. Most often, aphids spread in greenhouse structures, affecting almost all plantings.

In order to get rid of this pest, you need to treat the affected plants with a special solution. It is prepared from 100 grams of laundry soap, 200 grams of lye, 200 grams of wood ash, 10 liters of water. When spraying a plant with the prepared liquid, special attention should be paid to the lower part of the leaf.

a lot of aphids

Damage by cucumber mosquito

The cucumber mosquito pest affects plants growing in a greenhouse.These insects weaken the plant, which leads to the formation of root rot. These pests spread during transplantation of seedlings, along with contaminated soil or fertilizers. The cucumber mosquito causes enormous damage to seedlings. Its larvae damage the stem structure: they make passages inside the seedling material, which is why the planted cucumbers in the greenhouse quickly die: their trunk suffers from cracks and bursts.

cucumber mosquito

flies

Flies can also attack cucumbers. These insects lay eggs in the ground, which damage the plant as it germinates. The affected plant can be recognized if the surface of the sprouts has turned white and acquired a slightly bluish tint.

If you do not fight this pest, the plant gradually begins to dry out. For formed bushes, the top dries first, and for young seedlings, the base of the stem dries. Gradually, the plant dies completely; it should be removed and burned as quickly as possible, and the soil should be disinfected.

fly on a leaf

All of the listed diseases and pests can damage not only the stem of the plant, but also its foliage, fruits, and flowers. If a summer resident notices that a stem has cracked in the middle or at the base of one of the plantings, he needs to inspect the crop for symptoms of diseases or pests.

If a plant is damaged in a greenhouse, it is necessary to treat all plants and also disinfect the soil. This is due to the fact that in conditions of high moisture, pathologies spread quickly and can affect new plants. With timely treatment of plant crops, they will stop drying out, and after restoration they will produce a new batch of tendrils.

ripe cucumbers

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