Good afternoon, my reader. Currants, like any other fruit shrub, are attacked by pests. One of the most dangerous is the kidney mite. If you do not take measures to combat it in time, the plant will die.
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Description of currant kidney mite
Most often, the tick affects black currants. The first sign of damage is enlarged kidneys, they can reach the size of a large pea. In the embryonic shoot, up to 7 thousand insects are possible at the same time.
They hibernate in bud buds, shoot or leaf formations. They hide there from low temperatures and high humidity. When the flowering period begins, such formations wither. Females get out, look for young shoots and leaf rudiments, lay eggs. Until the onset of autumn, 3 thousand generations are possible.
An insect can weaken and destroy an entire bush, and then move to a new one. Also, ticks are carriers of dangerous infectious and viral diseases. For example, terry.
Weakened plants are also attacked by other pests: gold beetles, barbel, and glass beetles.
In order to save currants from a kidney mite, it is important to detect it in a timely manner and regularly treat the shrub with various preparations.
Control methods
The following preventive measures will make effective pest control:
- Thorough inspection of currant bushes in the spring, hand removal of affected buds and shoots.
- Compliance with agricultural techniques.
- Processing of bushes in autumn and spring.
In the fall, carefully remove all the fallen leaves from under the bush. Then the beds are freed from weeds. During the digging of the earth near the bushes, granular mineral fertilizers are added. They increase the immunity of the plant.
Further, the plants are treated with special ready-made preparations for ticks.
In the spring, if infected buds or shoots are found, they are immediately removed along with the branch on which they are located. There is a high probability that the tick has already moved to it.
The removed parts are burned to prevent further spread of pests. Currants are treated with fungicides: "Fitoverm" or "Akarin". In case of severe damage, they resort to chemical compounds: thedione, ether sulfonate, a suspension of colloidal sulfur. The preparations are diluted in water according to the instructions and the plants are sprayed 3 times per season.
In the spring, hormonal acaricidal agents are used. Since at this time, a massive active migration of ticks from wilted buds to young shoots begins. Pests are as vulnerable as possible, they are fought with non-systemic drugs: "Envidor", "Forbid 4F", "Oberon". Spraying is carried out 2 times per season with an interval of 10 days.
Stronger compositions are resorted to only after complete harvest. Use solutions containing organophosphorus substances: "Famidophos", "Danadim", "Pilar Max", "Accent". It is important to strictly follow the instructions and precautions when working with drugs.
Folk remedies
In the fight against currant kidney mites, infusions are used based on:
- tobacco;
- onion peel;
- potato tops;
- garlic.
To prepare a product with potato tops, you must:
- tops - 3 kg;
- water - 10 liters.
The components are mixed and left to infuse in a closed container for 6 hours. Then it is filtered, diluted with water in a ratio of 2: 1 and currant bushes are sprayed.
To reduce the likelihood of a kidney mite attack, choose currant varieties with high resistance to it:
- Minx;
- Irmen;
- In memory of Michurin;
- Belarusian sweet;
- Leningrad giant;
- Nara;
- Oryol Serenade.
In nurseries there are varieties of Russian, Belarusian, Polish selection. Select those plants that are suitable for growing in a particular region.
Particular attention is paid to seedlings. Purchase them in trusted stores. Inspect carefully before purchasing.
Do you know how to effectively get rid of a currant kidney mite?
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How to deal with aphids on currants, read the following article:Ways to combat aphids on currants