Why does the ovary of cucumbers turn yellow in a greenhouse and open field, what to do

It is important to figure out in time why the ovary of cucumbers turns yellow and falls off. This will save the harvest and preserve the taste of the fruit. There may be several reasons, mostly it is either improper care or infection with any infection.

Why do cucumber ovaries dry in a greenhouse

It is not always possible to avoid problems with observance of all agrotechnical requirements. There are several main reasons why a cucumber ovary may turn yellow in a greenhouse, and some tips will help you to do this.

• Cucumber buds can develop slowly due to the rare ventilation of the room. The air becomes humid or too dry, stale.
• Hot air is another reason why cucumbers don't grow. If the air temperature in the greenhouse is more than 27 degrees, then the leaves and ovaries turn yellow and crumble.
• Another unfavorable factor why the ovaries do not develop and wither is the close planting of cucumbers. The green tops of densely planted seedlings create shade and keep out air. Therefore, it is very important to keep a distance during landing. The distance between each cucumber bush in a row must be at least 45 cm.
• The reason why navels don't grow is due to late harvest. During the period of active ripening of cucumbers, it is recommended to harvest every other day. If the fruits remain on the lashes, they overripe, from which they begin to take away all the nutrients. The new ovary does not develop, but dries up and falls off.
• Violation of the watering regime is often the main factor why small cucumbers in the greenhouse turn yellow. Lack or excess of moisture leads to the fact that cucumber ovaries dry in the greenhouse. Water for irrigation should be warm (about 20 degrees) and it is advisable to defend it. Sprinkling should not be carried out too often, it is better to water at the root, with a stream without pressure.
• Ovaries do not form on cucumbers or they turn yellow due to a lack of trace elements in the soil. When correcting the situation, the main thing is not to overdo it, since an excess of fertilizers is not beneficial.
• Zelentsy do not develop due to too many ovaries on one bush. The optimal number is about 26 pieces. If there are more ovaries, more nutrients are consumed and the cucumber ovaries turn yellow and dry out.

Insufficient or no pollination also causes yellowing of cucumber ovaries. Since the premises in the greenhouse are often closed, it is best to choose self-pollinated varieties. It is better to choose the same varieties of cucumbers for growing on the window. The inflorescences of such cucumbers have both stamens and pistils.If bee-pollinated varieties are planted, then you need to take care of free access of insects to the cucumber beds.

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What to do if the leaves of cucumbers in the greenhouse wither, how to process them for treatment

The reasons why cucumber ovaries turn yellow in the open field are almost the same as in a greenhouse or greenhouse. Additional factors are frost, heavy rainfall and through winds.

What to do if cucumber ovaries turn yellow in a greenhouse

As soon as the reason why the cucumbers turn yellow has been identified, they begin to eliminate it. The following actions will help.

• When the cucumbers cannot set, the watering regime should be adjusted. Before the fruiting period, it is recommended to water every other day with warm, settled water in the evening. During fruiting, watering is recommended less often. Each root should take about 5 liters.
• Poorly developing cucumbers need to be ventilated. It is advisable to equip the greenhouse with a ventilation system; on a hot day, you can open a window or door.
• Be sure to monitor the air temperature at night and during the day.
• In order not to dry the ovaries, it is imperative to form a stem, tie it to a support and prevent excessive hanging of the fruit from one branch.
• When cucumbers turn yellow in a greenhouse, what to do depends largely on the variety. If bee-pollinated varieties of cucumbers grow in the greenhouse, then it is necessary to check whether the bees can enter the greenhouse. It is recommended to open the greenhouse door during the day; to attract the attention of insects, you can use a sugar-honey solution. There is an option to help the plant on your own.
• If the ovaries of cucumbers fall off due to the large amount on the branch, then it is recommended to pluck some of them. But it is better to carry out pinching on time.

If cucumbers are tied, but do not grow, the situation may be the result of a lack of feeding. Depletion of the soil leads to a lack of beneficial trace elements. Wood ash will help replenish potassium. Urea will fill the nitrogen deficiency. Chicken droppings and mullein are also popular.

You should not abuse nitrogen fertilizers, which is why the tops begin to develop, and the ovaries dry out and may crumble. You can feed the cucumbers with potassium-phosphorus fertilizers.

It is useful to carry out foliar processing of the plant. A urea-based infusion is useful. 50 g of urea and 90 g of soda are added to 10 liters of water. Such a composition helps to restore damaged seedlings in just two sprays.

Gardeners may experience not only yellowing, but also dropping of the ovaries. The problem of why the ovary falls on cucumbers is often caused by non-observance of the temperature regime, improper watering, a lack of mineral fertilizers and poor pollination.

Why can ovaries turn yellow and dry on cucumbers, diseases and pests

The formed cucumber ovaries turn yellow and fall off as a result of various infections.

• Sharp temperature drops, humid air, dense planting of plants lead to the development of downy mildew. First, the leaves begin to turn yellow and dry, brown spots appear. After a few days, the whole plant begins to turn yellow, including the ovaries on cucumbers in the greenhouse. The first step in solving the problem is to stop watering and feeding. You can use drugs such as Topaz, Oxyhom.
• The reason why pupils turn yellow in cucumbers in a greenhouse is often a fungal disease such as fusarium. Once inside the plant, it prevents the movement of nutrients and the plant dries up. Treatment is carried out with drugs such as Fitosporin, Trichophyte, Kornevin.
• Cucumber ovaries do not develop due to bacteriosis disease. Frequent watering and excess moisture causes the growth of the fungus. You should not plant the bushes too close to each other, you need to water it correctly, and after watering, be sure to ventilate the room.

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Causes, types and treatment of chlorosis of cucumber leaves

The invasion of various insect pests becomes another reason why the ovaries dry and the embryos turn yellow. The most frequent unwanted guests are spider mites, aphids, whiteflies. You can fight them with compositions from folk recipes or use insecticides (Aktara, Aktellik).

• If the cucumber does not grow due to pests, then you can make an infusion of hot pepper. The product is poured with boiling water and left to infuse for a day. Filter the finished solution, add shavings of crushed soap and wood ash.
• You can make an infusion from onion peels. Half a bucket of husk is poured with a bucket of water, put on fire and brought to a boil. Then you need to leave for 10 hours to insist. The filtered solution is diluted with water and sprayed on cucumber beds.
• The infusion of potato tops will not let the ovaries dry out. Greens are poured with boiling water and insisted for a day. For better adhesion of the solution, soap must be added to the composition during spraying.
• Infectious diseases, due to which the ovaries can fall off, are treated with skim milk. A few drops of iodine and soap are additionally added to a liter of milk. Water the cucumbers with the composition at the root.

For prophylactic purposes against insects, you can spray cucumbers with modern drugs: Tsimbush, Fitoverm, Akarin.

What to do to prevent cucumber ovaries from turning yellow, preventive measures

General preventive measures will prevent yellowing of the tied cucumbers.

• In autumn and spring, disinfect the greenhouse structure and garden tools.
• So that the cucumbers do not wither and grow well, it is recommended to replace the topsoil in the greenhouse with a new one every year.
• It is recommended to fertilize the soil before planting cucumbers, for example, with rotted manure.
• Cucumber beds in a polycarbonate greenhouse must be weeded regularly and loosened after watering.
• It is useful to mulch the soil. An additional layer of straw, grass, sawdust will help protect the plant from adverse factors.
• The distance between the beds and seedlings in a row should be observed.
• During active ripening of fruits, it is recommended to harvest the crop daily or every other day.

Few ovaries may be due to poor seed quality and poor preparation of the planting material. Therefore, before planting, cucumber seeds must be carefully selected, warmed up and treated with special preparations.

To have fewer yellowed ovaries, you need to carry out preventive treatment of cucumbers. Spraying with boric acid has a positive effect on the formation of cucumbers. You can dilute a solution from drugs such as Bud, Ovary.