Currant is an unpretentious shrub, but often gardeners think about why currant leaves turn yellow? Premature yellowing of the leaves appears more often on red and white currant bushes, but owners of large blackcurrant varieties also sometimes get upset about this.
Why currant leaves turn yellow: the main reasons
Being exposed to certain diseases and pest attacks, black currants can lose the quality of their fruits. The leaves of the plant curl, become covered with brown spots, turn yellow and fall off. A massive damage to the leaves of a shrub can lead to a weakened state and even to the death of the plant.
The main causes of yellowing leaves in currants are:
- Wrong fit. The development of the bush depends on the correct choice of the landing site. Currant prefers fertile, loamy, well-moistened soil. The plant will develop poorly in dry, unprotected from the winds, as well as swampy places.
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Mismatch with the temperature terms of landing. Often the question of why currant leaves turn yellow worries those gardeners who practice planting young bushes in early spring. Frosts are still possible in spring, and low temperatures inhibit the growth of currant buds. The optimum temperature for intensive growth and development of the plant is +18+20° C. Therefore, young bushes develop better if they are planted in autumn.
- Incorrect formation of a young currant bush. When buying a young plant, they look to have 4 to 6 strong stems and a developed root system. When planting a bush in the soil, you need to cut off all its shoots shortly, thereby enhancing the growth and formation of new, high-quality shoots. If this procedure is not done, the plant simply may not be able to withstand the large number of leaves that have appeared. As a result, blackcurrant leaves turn yellow and whole shoots dry.
- Nutrient poor soil. Black currants need to be fertilized every year with nitrogen, phosphorus
- Currant leaves and inflorescences are often affected by small aphids and fungus. As a result, theyturn yellow, roll into tubes or become covered with small mounds of fungal diseases. The leaf plate becomes hard, bumpy and disappears over time. These and other diseases arise from improper agricultural practices - an unsuitable place for planting a bush and poor-quality feeding;
- If the currant bush is already old, large, fruitful for many years, then the answer to the question of why currant leaves turn yellow, the answer is obvious - from time to time. The productive life of this plant is considered to be 16-18 years. But proper care, including regular feeding, the formation and pruning of bush shoots, prolongs the life of the currant for another ten years.
and potassium substances. The standard recommended ratio of organic or mineral substances to support one currant bush is as follows: ammonium nitrate - 40 g, superphosphate - 40 g, potassium chloride - 30 g. After 6-7 years, lime should be added to the soil around the plant if the soil is too acidic. In order to increase the yield and increase the growth of shoots, you should regularly and properly care for the bush.
Now you know why currant leaves turn yellow. In order for the bush to please you with weighty clusters of its healing berries next year, take care of it this year, adhering to our recommendations for caring for the plant.
