If you grow at his dacha gooseberries or currants, you may encounter a problem of yellowing of the leaves in late spring or summer. It should be noted that this phenomenon is considered to be premature. If to all this you will find that they are turned off and dry up, you need as quickly as possible to take action. But first, you need to find out what triggered the yellowing foliage.
Currants and gooseberries are undemanding plants. However, they are not immune to defeat diseases and pests. If the yellow bush at the wrong time, it is possible that the reason lies in the wrong care.
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The leaves of gooseberry and currant turn yellow due to improper watering
The appearance of yellow leaves in late May or early June, said that the plant is experiencing water shortages. This problem usually occurs during periods of drought or early planting of seedlings. If you do not provide the correct planting watering, their leaves begin to dry, curl and change color. Both shrubs require timely watering during the first months after planting. The procedure is necessary to pay special attention in hot weather. At moderate temperature currants and gooseberries enough irrigation season 3:
- In late May-early June, during the period of active growth of leaves and the formation of ovaries.
- At the end of the first month of summer, in the period of ripening berries. If you ignore watering during this period, the crop will lower themselves berries grow small, dry rough skin.
- Once harvested (lack of moisture in the ground at this time adversely affects the tab of flower buds, so it's possible that will not have to wait for future harvest). If the air temperature is above 25 ° C, and the precipitation and not expected, Artistic moisture replenishment is required. In this case, watering should be done every 7 days.
See also:Useful properties and contraindications currant leaves
Compared with the currant, gooseberry is more resistant to drought. Black currant is not easy to tolerate lack of moisture, such as red. For watering shrubs need to take well-heated water. Watering the plants should be at the root, it is important that the soil is soaked in water for at least 30-40 cm depth. On each bush 20 liters of water is required. Water should not protrude beyond the borders around-trunk circle. You can prevent this by digging shallow furrows.
The leaves of gooseberry and currant turn yellow due to lack of nutrients
Yellow leaves often indicate that the culture is experiencing a shortage of nutrients. In this case we are talking about nitrogen, which stimulates the growth of vegetative mass and has been actively involved in photosynthesis. Deficit or surplus of a negative effect on the leaves. With a shortage of macroelements culture is experiencing a shortage of oxygen, which leads to slower growth of the plant, the leaves begin to fade and turn yellow. Those that are below, are stunted, fold and eventually fall off.
Often enriched the soil with nitrogen and acidity with a lot of weeds. What if the plant needs nitrogen? In this case, it is advisable to use nitrogen-containing fertilizers:
- ammonium nitrate;
- urea and urea;
- ammonium sulphate;
- ammonium sulfate.
Make such feeding is necessary in the summer and in the spring, putting them deep into the soil. In the autumn they feed the berry bushes unacceptable.
The leaves of gooseberry and currant turn yellow due to disease
If they turn yellow due to the above reasons, the situation is completely remedied. As for diseases, which entail such consequences, then overcome their sometimes very difficult. What illnesses can face these berry bushes?
Rust currants and gooseberries
These fungal diseases nature can manifest itself in different symptoms. Sometimes the plant can be observed small red spots or yellow-orange warts on the underside of the leaf. Soon there is shrinkage of the berries themselves, the foliage begins actively to fall.
Vertitsillez (Verticillium wilt)
In this case, the root system is affected crops. This leads to the fact that they are beginning to experience a shortage of nutrients, stunting. The leaves turn yellow, wither and die. If you do not proceed with the timely treatment, in 2-3 years the bush will die.
Anthracnose gooseberries and currants
For fungal origin of this disease characterized by the appearance of brown spots circular (on both sides). Soon they begin to coalesce, leaves turn yellow and die off actively. Weakened bush was not able to withstand winter weather conditions.
Mosaic currants and gooseberries
Affliction of viral origin. Its symptoms - rounded appearance of pale yellow spots on the leaves with pale green midway. they merge soon, leaf turns yellow, the affected areas between the veins turn white and dry.
Lead to yellowing of the leaves in berry bushes under the force of such diseases as sferoteka American powdery mildew. Insidious of all these diseases is that they are not amenable to treatment. To keep the bushes, you must adhere to the preventive measures:
- With the arrival of autumn Deliver portion from plant residues and litter.
- Acquire variety berry bushes which are characterized by resistance to these ailments. Decontaminate bushes 1% solution based on liquid Bordeaux during the opening of leaves, buds and formation after flowering. Replace this agent can preparations in which copper is present.
- Remove fading and yellowing of the plant.
- Spend fungicides processing adhering the information specified in the instruction.
- When massive infection uproot bushes and disposed of by incineration.
The leaves of gooseberry and currant turn yellow due to pests
Currant bushes and gooseberry can attack a variety of pests, who strive to eat not only berries, but also other parts of the plant. It is therefore important to inspect the bushes for parasites. If the bushes settled spider mite, it will start sucking the nutrients out of the bush, which could result in yellowing and drying up.
Insect orange color can be detected on the underside of leaves. Soon you will notice the spider nest, which criss-cross the top of the young shoots - for the whole summer season pest release to light more than one generation. Worst of all plants is necessary in times of drought. Their leaves do more damage they dry, the crop is reduced, as unripe berries are beginning to fall.
Harm berry bushes can such pests as aphids. Suck all the juice from the plant by virtue of both adult insects and larvae. It is worth noting that the aphids actively propagated and "works" whole colonies. If Bush attacked the aphids on the upper side of the leaves you can find redness, yellowing and curling.
Beat the bushes can cause steklyanina currant. This pest is dangerous stage larvae which gnaw the stems, contributing to a breach of photosynthesis. Shoots and leaves, the affected malign insects begin to wither, turn yellow and die soon. Combat pests either manually using chemical drugs and folk remedies:
- All fallen leaves compulsorily collected and destroyed.
- The soil under the bushes loose and mulching.
- Weakened parts of plants with signs of insect activity are cut and burned.
- Bushes are treated with insecticides or less aggressive means (onion, garlic or a tobacco extract).
Save berry bushes helps regular and proper care of them. Provide regular watering plants, proper feeding, do not ignore the preventive measures that will save the plants from diseases and pests.
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