Many summer residents prefer to grow cucumbers in a greenhouse. But they often face such a problem as yellowing and drying of the ovaries. This phenomenon can cause a number of reasons, having dealt with which, you can prevent the recurrence of this unpleasant situation.
Cucumbers. Illustration for this article is used under a standard license © ofazende.com
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Causes of yellowing of the ovary
- Frequent drafts in the greenhouse and low air temperatures. The cucumber is a thermophilic plant and does not tolerate low temperatures during the growing season. Sharp temperature drops during the day also negatively affect the culture.
- Deficiency or complete absence of insects pollinating flowers on a plant.
- Lack of nutrients necessary for the formation and growth of ovaries. During this period, the plant must be provided with a sufficient amount of phosphorus and potassium, the introduction of nitrogen is suspended by this time.
- Wrong watering regime. In a greenhouse, in hot weather, moisture quickly evaporates, the plant does not have time to receive the required amount of moisture.
- If the shape of the bush is improperly formed, a large number of ovaries are formed. The plant is not able to provide all of them with nutrients.
- Yellowing and drying of the ovaries on cucumbers may indicate a disease in the bush. Most often, powdery mildew, bacterial and fungal infections appear on the culture.
- Pests can also cause yellowing. Mainly in the greenhouse, the culture is attacked by aphids and spider mites.
Cucumbers. Illustration for this article is used under a standard license © ofazende.com
How to prevent yellowing
After the problem is identified, it is necessary to start fixing it as soon as possible in order to prevent its subsequent manifestations.
- If the cause of yellowing is due to a lack of pollinators, it is necessary to provide free access to the greenhouse for such insects. Open doors for ventilation, do not close the vents. Or choose self-pollinating varieties.
- It is important to regularly monitor the temperature regime of the environment. It is not recommended to allow the drop of the mercury column below 14 degrees. To keep warm, the plants are covered.
- Timely application of fertilizers will solve the problem of nutritional deficiencies. To compensate for the deficiency of nitrogen and potassium, you can use urea or a ready-made complex fertilizer for cucumbers. They are used for watering and foliar dressing. It is recommended to water and spray plants in the early morning or in the evening, when the sun is less active.
- The timely formation of the bush by removing excess shoots will help prevent the formation of an excessive ovary. The presence of extra shoots increases the consumption of nutrients and moisture.
- Regular inspection of the crop and proper agricultural practices will help to timely identify the first manifestations of the impact of diseases and pests, as well as prevent their further spread in time.
Compliance with these simple rules will prevent the cucumber ovaries from yellowing and drying out.
Do you know how to deal with yellowing of the ovary on cucumbers in a greenhouse?
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