Quite often when growing cucumbers gardeners gardeners are faced with such a problem as yellowing of fruits and abscission of ovaries.Why cucumbers turn yellow?Consider the most common causes of this change in color of ripe fruit and ovaries.
One of the most common reasons why cucumbers turn yellow and grow poorly, lack of water is commonplace.Cucumbers, in principle, in addition to moisture and heat do not need anything else, so they should be watered liberally and often.Diagnosed water shortage is quite simple - along with yellowing of cucumbers change color and begin to dry leaves.However, if after a heavy watering the problem persists, then the reason is something else.
reason why cucumbers turn yellow, and may be adverse weather conditions - early frosts and sudden cooling.This change can cause stress even cold water, so it must be before watering warm in the sun.From cold spells can save the covering material, if the cucumbers grown in the open ground, or put in a greenhouse heater.With additional supply of heat cucumbers will not disappear from your desk until late autumn.
Also this problem often occurs because of a lack of nutrients in the soil.It is therefore recommended crop rotation, which must be carried out annually.Regular fertilizing potassium and phosphate mixtures are excellent prevention, but you need to be careful when introducing organics.However, such fertilizer in the garden can get fungi and viruses such as tobacco mosaic virus.
In addition, inexperienced gardeners may be recalled that the yellow cucumber - it is quite normal for the color of ripe fruit.The food they are not used, so you can just throw away or leave for seeds.
Why small cucumbers turn yellow and fall off?At the stage when the fruit just formed, yellowing may occur for several reasons.Firstly, it is due to the large number of ovaries on the same plant.Some types of cucumbers, especially hybrids, bloom profusely and can produce up to 150 ovaries.The root system of the plants simply do not have time to feed as much fruit, and they begin to wither, turn yellow and fall off.Out of this situation is simple - removing unnecessary ovaries or flowers.
Another reason why the yellow fruits of cucumber on the stage of the ovary, may be insufficient pollination.If the fetus is not formed by the seed, the plant may no longer feed its own juices.In this case, you can manually pollinate cucumbers with a soft brush or sprayed onto the bed of a solution of honey or sugar.Such a sweet bait to attract bees, which pollinate all the flowers.
That's all the major reasons why cucumbers yellow.If your case does not match the description of one will likely plant impressed fungal or viral disease.In such a situation it is necessary to use special formulations and possibly destruction of affected plants.
