Briefly about currants

Currant is a dicotyledonous shrub flowering crop from the gooseberry family. Sometimes on the currant bush and the fruits of the culture, you can observe spots on the leaves of the currant of unknown origin. It is very important to establish the reason for their appearance. They can develop due to a lack of nutrients, or they can develop due to a serious illness. It is possible and necessary to fight currant diseases. It is very important to recognize the symptoms in time and choose the appropriate drug.

Rounded spots on currant leaves

If brownish spots are present on the leaf plates of the culture, which over time begin to combine with each other, and the foliage turns yellow and gradually falls off, then most likely this is a disease called anthracnose. This disease can appear almost during the growing season. The main threat of this disease is that the foliage begins to fly around. And this is what will interfere with the harvest next season. Also, spots can appear on young shoots, stalks, stems, petioles and the fruits themselves.

How to fight

In order to prevent the disease from developing further, in the autumn period you need to burn the old, fallen leaves. Since the infection survives the winter period precisely in fallen leaves.

During the period when the buds are not yet opening, it is necessary to spray the culture with a solution of ferrous sulfate. The concentration should be as follows: three hundred grams of the product per ten liters of water.

Even before the buds bloom, you need to spray with copper sulfate. The concentration should be as follows: fifty to one hundred grams of the drug per ten liters of water.

During the growing season, it is necessary to carry out the treatment with one percent Bordeaux liquid. The very first spraying procedure should be carried out at a time when the buds are blooming. The second spraying procedure should be carried out after the plant has faded. The third procedure should be after ten to fifteen days after the second procedure. The very last treatment should be when you have already harvested the entire crop. It is very important to ensure that the solution hits both the top of the sheet and the bottom.

Bright orange neoplasms on currant leaves

Orange neoplasms on currant leaves

If you notice the appearance on the underside of the leaf plate, small pads, with bristles in the form of columns, orange, as well as if various growths and tumors appear on the foliage, there is a possibility that this is columnar rust. As the disease progresses, the reverse side of the leaf plate is almost completely covered with orange bristles. And then it completely begins to dry and fall off, the branches also dry out and do not develop.

How to fight

In order to prevent the disease from developing even more, in the spring it is necessary to cut off those branches on which there is an area that is affected, as well as five to ten centimeters lower. This will improve the circulation of fresh air and will also help prevent the development of disease.

With the arrival of the autumn period, all affected parts of the plant must be cut off and then burned.You also need to loosen all the soil around the bushes.

It is necessary to process crops in a timely manner using Bordeaux liquid with a one percent concentration. The first spraying should be carried out in the spring, before the buds bloom. The second treatment should be carried out immediately after the culture has faded. The third processing must be done when the crop has already been harvested.

Yellowish brown spots on currant leaves

If you saw on the upper part of the leaf plate, not large bumps, brownish in color, which, moreover, are surrounded by a yellowish border, then most likely the currants are sick with rust. As the disease progresses, small orange columns grow on these spots. Over time, the entire leaf plate opens up with such fluffy formations.

How to fight

It is necessary to cut off all damaged foliage, as well as pick up the one that has fallen, and then burn it. Throwing this mass out on the compost heap is impossible. Fungal spores overwinter successfully if they are in compost.

It is necessary to process the culture with Bordeaux liquid with a one percent concentration. The first spraying should be done when the leaves are blooming. The second spraying should be carried out during the budding period. The third spraying should be carried out immediately after the culture has faded.

If you have just noticed the symptoms of rust, then you need to treat the culture with a drug such as phytosporin-m.

Light or dark brownish spots on currant leaves

Dark brown spots

If on the foliage and branches of your bush, you see not large light gray spots with a rounded shape, which have a brownish border, but blackish small dots in their core, then most likely this is ascochitosis. As the disease progresses, the affected parts of the plant begin to dry out, crack, and then fall off.

How to fight

It is necessary to collect and then destroy the affected parts of the plant. Timely destroy weeds that grow around the plant. Carry out timely pruning so that the bush does not thicken. That is, you need to ensure regular sanitary as well as renewal pruning. Before the disembarkation procedure, all planting material must be disinfected. This can be done with copper sulfate. Concentrated: one hundred grams of product per ten liters of water. The seedlings should be placed in such a solution for five minutes, and then rinsed with clean water.

Whitish spots on currant leaves

Whitish spots

If you observe a whitish bloom on the leaf plates of your plant, which gradually acquires an orange color, then most likely it is powdery mildew. This disease may appear during the entire growing season. Often, the edges of the sheet plates acquire a brown or black tint. If the plant is severely affected, it will slow down its growth and also reduce its yield.

How to fight

It is necessary to reduce the frequency and amount of watering. Since powdery mildew develops well with high humidity.

It is necessary to process the plant with soda ash. In order to make such a solution, you need to take five grams of soda ash, fifty grams of green soap and dilute all this in ten liters of pure water. Spraying should be carried out immediately after the plant has faded, or when early symptoms of the disease appear, two to three times during the summer period with an interval of ten to fifteen days.

It is necessary to prepare a manure solution. To do this, you need to mix rotted manure with water in a ratio of one to three. Then you need to let the solution brew for seventy-two hours. A completely finished solution, you need to dilute with water in a ratio of one to two, then filter, and start spraying the bushes.

Smallish leaf plates on a bush

If the leaves on the currants have decreased in size, acquired a dark green tint, and now consist of only three parts, which is most likely terry, or reversion. With such a disease, the veins on the leaf plates gradually coarse, chlorosis may also appear, but it may disappear. The inflorescences themselves turn purple. And the fruits can be deformed, or they are not formed at all. Bushes grow strongly and thicken.

How to fight

Unfortunately, this disease cannot be cured with the help of known drugs and remedies. You can only fight with prevention. Namely with a kidney mite. To do this, you need to view the bushes in a timely manner, especially immediately after planting, as well as in the first four years of life.

If the bush is sick, you just need to dig it up and then destroy it.

If you notice the appearance of light yellowish spots with a greenish center inside, and also notice that the leaf has begun to grow unevenly, then most likely this disease is a mosaic. As the disease develops, the spots completely cover the leaf, the plant tissue itself begins to whiten, and then dries up.

Conclusion

If you notice any changes on the currant leaf plates, you need to take action immediately. If you do this at the very beginning, then the bush most likely can still be saved. You also need to remember about the importance of preventive measures, as well as agrotechnical rules. Surround your plants with love and care, and then they will reward you with a proper harvest.