Cucumbers are very whimsical plants and any changes in conditions of cultivation can lead to various problems. One of such is yellowing of ovaries of cucumbers. Why it occurs also what to do in that case?
The most widespread problem at cultivation of cucumbers is yellowing of their leaves. But sometimes also ovaries of plants in addition can begin to turn yellow. Further such process leads to the fact that they fall down and deprive of gardeners of good harvest. Ovaries of cucumbers turn yellow on several basic reasons:
1. Mistakes at cultivation of cucumbers
2. Adverse weather conditions
3. Influence on them of wreckers and fungal diseases
The main mistakes at cultivation of cucumbers leading to yellowing of ovaries
As well as, in many other cases, everything begins with the wrong landing of plants in the greenhouse. Too thickened landings lead to the fact that ovaries begin to turn yellow. Cucumbers should be planted, observing distance between them more than 40 cm depending on grade. If plants have been planted much more often, then carry surely out their thinning.
As for fertilizing, during development of ovaries the cucumbers need large amount of potassium which contains in the known organic fertilizers a little. Therefore plants feed up surely potash saltpeter, dissolving 10 g of substance in water bucket with addition of wood ashes.
Hothouse grades of cucumbers very strongly increase green material that leads to oppression of ovaries, and they cannot normally develop. In that case it is necessary to form bush and to prishchipyvat tops of plants.
Excessive formation of ovaries can also lead to what they will turn yellow and fall down. Therefore it is necessary to remove excess germs of cucumbers in time, having left no more than 20-25 pieces on one bush.
Watering of cucumbers is carried surely out by warm water. At the same time the regularity of watering during formation of ovaries for some time decreases to minimum that pistillate flowers were formed, and then increases, reaching daily moistening of plants in the evening.
One more mistake is irregular harvesting. The overripe copies prevent to develop correctly young growth and promote subsidence of ovaries.
Adverse weather conditions
Temperature condition of cultivation of plants is especially distinguished from these factors of emergence of yellow ovaries on cucumbers. Optimum temperature for this purpose +18-+23 degrees. If at night it falls below this level, then ovaries badly develop and turn yellow. In that case in the greenhouse establish any dark containers with warm water which will control this balance. In the afternoon on the contrary temperature sharply increases and cucumbers dry up that negatively affects ovary of plants. For the solution of this problem the soil is mulched peat which does not allow moisture to evaporate quickly.
Influence of wreckers and fungal diseases
Among diseases of the cucumbers pernicious for ovaries, are especially allocated white and root decay. All these diseases generally develop at strong moistening in the greenhouse. At defeat of cucumbers these diseases hold number of preventive events. At first completely delete the damaged plants or their part, and then powder the soil with either chalk, or ashes. Use of chemical medicines at this moment is impossible therefore cucumbers process folk remedies.
Among insects the special harm to ovaries of cucumbers is done by plant louse and web tick. For fight of plant against them spray with infusions of bitter wormwood or pharmaceutical camomile. In both cases, greens are retted in boiled water on couple of days, and further added to infusion of any soap and process plants. Such procedure can be carried out even during maturing of fruits.
All these reasons for which ovaries on cucumbers turn yellow need to be solved in due time to receive good harvest of this vegetable culture.