Пт, 05 авг 2016 Автор: Юлия Кривенко
Growing currants on the site, you must be prepared to withstand
various plant diseases.
The varieties of white and red currants are more resistant to damage,
but black varieties are often affected by disease.
how их распознать и лечить?
Contents
Mealy dew – white bloom on black currant
If the currant fell ill with powdery mildew – this is not a sentence.
The main thing is to recognize the disease in time and begin treatment.
Возбудитель болезни — патогенный грибок,
which affects seedlings, young leaves, shoots and buds, fruits.
The peak of the disease occurs in July. The first signs are possible
detect on the back of the sheet, it is covered with white bloom.
This is the mycelium of the fungus, which grows and affects all
the plant, while the spores themselves become dense like felt.
Launched plants cease to develop, the growing point dies.
The leaf cover of the diseased shrub becomes ugly: leaves
shrink, curl, shorten. Fruits that are fastened,
fall down along with the leaves. Productivity is sharply reduced.
Sick plants are not able to survive the winter, they often die
in cold weather. Even if in the spring the bush begins to grow again, then wintering
the shape of the fungus will not allow it to fully develop. No treatment black
Currant will die in the same year.
Causes of white bloom on currants
In order to further avoid contamination of currants
powdery mildew, you need to identify the reasons why the plant
affected by the disease.
1. The reason for the defeat of currants can be warm and wet.
weather. It is in this climate that the fungus is most active.
2. The lack of light in growing can be an impetus for
development of the disease. Currant prefers well lit
plots.
3. Thick landing – another reason that leads to
powdery mildew. Too small distance between plants
contributes to the rapid spread of the disease.
Important! Pathogenic flora is not afraid of minus
temperatures winters with success in the soil or on plant residues.
With the onset of comfortable conditions begins to actively
to grow.
Currant leaves are covered with white bloom: how and what,
process
The fight against powdery mildew on currants is reduced to treatments.
Almost all old plant varieties are susceptible to damage.
Treating such shrubs will not do any good, but rather harm.
After all, large doses of chemicals – it is poison! From older varieties better
get rid of, and instead plant more sustainable new species that
subjected to treatments.
At the first signs of a lesion, the plant should be treated immediately.
At the same time, the spray solution should be applied to the whole plant,
on both sides of the sheet. The treatment is carried out in the evening or overcast.
weather, on hot days it is better to wait.
In order to prevent spraying of shrubs start with
early spring and spend it in several stages.
• The first treatment is carried out immediately after a period of rest;
• The second – before bud break;
• The third time spraying do before flowering;
• The fourth time – after him;
If necessary, conduct additional processing after collection
harvest. The interval between them must be at least 10 days.
Chemical agents are used to treat advanced forms of the disease.
drugs that are used exactly according to the instructions without disturbing
dosage. These include all copper-containing fungicides and
sulfur based products.
• Topaz;
• Forecast;
• Impact.
Currant Processing Tips
Experienced gardeners apply time-tested methods.
treatments that help well in dealing with powdery mildew.
1. In the autumn they are treated with 3% Nitrofen solution, 1%
DNOC solution, 5% mixture of copper sulfate. If the treatment is carried out
in the spring, it should be done until the plant is upset, t.
e. before bud break. Also in order to prevent treated
the soil around the shrubs, destroying the wintering forms of the fungus.
2. Immediately before flowering shrubs are processing
1% solution of colloidal sulfur. You can repeat the spraying after
flowering until the formation of fruits.
Prevent illness – half the success
Everyone knows that prevention is the best treatment. Therefore need
follow all the rules for the care of black currants to
its leaves did not appear white bloom.
1. Grow only resistant varieties on the summer cottage.
currants: temptation, grace, charm and others.
2. All planting material must be disinfected. For
This is used any drugs with a copper content. Before landing
seedlings soaked in a 1% solution.
3. Be sure to deal with weeds in the area. Many
pests that settle on weeds take up spores
fungus. And also weaken the plant, reduce its immunity.
4. In the fall, all affected shoots need to be cut and burned. Remove
all the fallen leaves and fruits that are the source
infection.
5. Sanitary cleaning is always carried out in early spring.
plants processing and digging soil.
It is possible to cure currant bushes of white bloom on the leaves,
only with the help of comprehensive measures and prevention. Fighting disease
On old copies it is ineffectual.
Folk ways to deal with white bloom on currants
Quite good results show the treatment of currants with folk
means which more sparingly act on a plant.
• Mullein solution
For опрыскивания смородины готовят настой коровяка. In a bucket of water
dilute 1/3 of the mullein and insist in a warm place a few
days After which the finished solution is filtered and diluted with water in
ratio of 1: 3. Spraying is carried out in three stages: shortly before
flowering, after him and as soon as the leaves fall.
• Infusion of ash
This infusion should be used at the first sign of a lesion.
currant powdery mildew. On a bucket of warm water take up to 300
grams of ash. When processing you need to ensure that the plant
It was well covered with mortar. Good results and gives
dusting bushes with ashes. Hold it after the rain or
spraying.
• Soda Ash Solution
Этой смесью хорошо process не только листовой покров
currants, but also the soil around the shrub. For его приготовления
use 100 grams of soda and the same amount of soap. Everything
the components are dissolved in 200 liters of water.
• Onion infusion as a preventive
Spring spend processing plantings onion infusion. For этого
Prepare a strong solution of 2 kg of onion peel and 5 liters of water.
• Milk serum
Experienced gardeners use for the treatment of currant milk
serum. 9 liters of water take 1 liter of liquid. Conduct such
processing needs repeatedly, well wetting shrubs.
• Antibiotics for treating currants
A good effect is the treatment of plants with antibiotics:
tetracycline, streptomycin, penicillin diluted in water in the ratio
1: 1: 1.
Treatment of white bloom on currants folk remedies based
on microorganisms that are formed in broths and infusions in
Enough to suppress fungal colonies.
Mealy dew is a complex disease, and parasitic
microorganism that leads to wilt not only currants, but
and most fruit crops. The fight against white bloom
Currant leaves will help protect other plants in the garden.
