Why do currant leaves turn yellow and dry
Currant bushes are quite unpretentious and not too sensitive to disease. But even such a picky berry has problems. And here it is important to timely determine the source and eliminate the root cause, so as not to lose the crop or even the entire planting. We tell why currant leaves turn yellow and what to do if they dry!
The simplest and most common reason is improper care. Lack or excess of moisture, sun and fertilizers instantly affect the condition of plants. We must not forget about the fungus, infections, other diseases and pests.
Currant leaves turn yellow evenly
If the problem manifests itself more or less evenly throughout the bush of currants - most often the reason is improper care. It is easy to adjust and compensate.
- If the watering is excessively plentiful, the yellowness gradually darkens and the leaves soften. This means that the process of decay has already begun. When the problem affects many leaves at once - check the basal neck to exclude root rot;
- When at first the plates themselves turn yellow, and the veins remain bright green - then the currant may lack nitrogen. But it is important not to overdo it, otherwise the bush will begin to build up green mass to the detriment of fruiting;
- Veins begin to yellow simultaneously with a deficiency of boron. If you start the situation, the leaves will dry and simply crumble along the edges.
Currant leaves turn yellow spots.
If yellowness manifests itself randomly - this is a symptom of fungi, spotting and infectious diseases.
- Small yellow spots that quickly turn brown or blacken are a sure symptom of anthracnose. Over time, the fungus disperses throughout the leaf plate. Color changes due to the destruction of chlorophyll in the cells;
- If the spots acquire a pronounced red tint - this is a sign of rust. Gradually, on the seamy side of the plate, orange swellings appear;
- Numerous rounded spots, which are becoming more and more - a symptom of spotting. Gradually, each spot darkens, and its middle - turns white. Depending on the weather, it may dry and crack;
- Irregular spots cover the entire plate and weave into one bizarre mosaic pattern. This is an incurable virus, which is important to diagnose and eliminate in time.
Currant leaves turn yellow and deformed
Sometimes leaves change not only color, but also shape, covered with tubercles, stretched or twisted.
- If the leaf turns yellow at the edges, and eventually begins to curl down - the currant lacks potassium. At the same time, it will not dry out and will not completely fall off, and after feeding it will recover safely;
- When the edges of the leaves twist and the plates begin to fly around - feed the currants with phosphorus. With its deficiency, spots gradually acquire a purple hue;
- If the leaves turn yellow and stretch, they get a strange shape and seem to curl - this is a terry virus. Its secondary symptoms are a change in color and structure of inflorescences, chopping of fruits;
- When the yellow spots turn brown and become covered with swollen tubercles, these can be galls or gall aphids. It is difficult to notice because it is tiny and almost transparent. But she mercilessly drinks all the juices from the plant.
Currant leaves dry
Very often, yellow leaves inevitably begin to dry over time. But there are nuances that can indicate the root cause of the problem.
- If the plant has too little moisture - the leaves gradually turn yellow and dry;
- On too hot days, currants can dry out due to an overabundance of the scorching sun. In this case, you should think about a small shelter;
- When the edges of the yellow plate dry out, the currant is probably not enough iron. But if it becomes too much - the leaves fade and become lethargic, but do not dry;
- Dark spots on the leaves brighten in the center, and then - dry up, when affected by Septoria. In advanced cases, it causes premature leaf fall;
- Separate dry plaques on the leaves indicate a lack of manganese. Most often they are grayish in color and do not apply to shoots.
Leaves turn yellow and plaque
Plaque on the leaves is most often a fungus, or rather, mycelium and the spores with which it propagates.
- If yellow spots appear on currant leaves, as if covered with a white coating, it is powdery mildew. It spreads on dry, hot days;
- If after the appearance of the plaque the sheet begins to darken and dry - most likely, this is a sphere library. It destroys the fruits and is more characteristic of blackcurrant;
- A plaque in the form of a web with light small spots is a characteristic symptom of a spider mite. They are especially active on hot, dry days.
Currant leaves grow yellow
If young shoots and leaves immediately lose their color - the problem must be urgently addressed. Otherwise, the bush will be too weak by the fruiting period.
- Fertilize with complex fertilizers, because most often in this case currants lack nutrients;
- Check the soil moisture with a wooden stick - you may need to irrigate more often;
- Make sure that the kidney mite does not nest in the kidneys, which eventually will move to the shoots. Because of their colonies, young branches grow painful and lag behind in development;
- The leaves grow small and yellowish if the glasshouse is hidden in the shoots. Its caterpillars eat whole moves in the branches, because of which currants can simply lose the entire crop.
The leaves of seedlings turn yellow
Most offensively, when very young seedlings of currant begin to turn yellow, lovingly planted on the site. In addition to the standard list of problems, there are several new reasons.
- If the leaves of the seedlings began to turn yellow immediately after planting, this could be a reaction to stress, and then the plant will recover itself soon;
- The second common reason is unexpected spring frosts, due to which the survival rate of seedlings is greatly reduced. Take care of warming in advance or plant currants in the fall under shelter.