How to deal with spider mites on currants?

How to deal with spider mites on currants?

Many gardeners grow currants, as it is an extremely unpretentious plant that gives people healthy and tasty berries. Its leaves and shoots are often used to prepare various decoctions and infusions, added to tea, and dried. You should properly care for the culture, make sure that it is not attacked by various diseases and insects. The most insidious and dangerous pest is the spider mite. It has a small size, capable of destroying the entire crop. Due to its impact, the plant dies.

Causes of pests

To prevent the spider mite from spoiling the crop, it is necessary to prevent its occurrence.

There are several reasons why a bush may be endangered.

  • Pests breed extremely actively in dry weather, when the temperature is elevated. In summer, they are extremely dangerous, since at this time there are the most convenient conditions for them.
  • If the soil lacks the necessary organic compounds or any other trace elements, then pests may appear on the shrub. Crops that are weak due to lack of organic fertilizers have poor disease and pest resistance.
  • The culture may be attacked by a pest due to other plants that are next to it.Therefore, if one bush is affected, it is necessary to get rid of the affected areas and pests as quickly as possible, otherwise they will multiply and spread.
  • Another reason is too dusty bushes. Ticks like these conditions, so it is worth spraying the plant so that they do not appear.

If you treat this inattentively, do not eliminate the causes of the appearance of the pest, it will certainly attack the plant and leave the gardener without a decent harvest.

Females can lay 200 eggs in 24 hours. A comprehensive fight should be carried out in order to get rid of not only adult ticks, but also eggs.

Signs of defeat

Initially, the disease may appear as yellow dots located on the leaf plates of the plant. These marks are the marks of tick bites. Soon the leaves turn yellow, and then begin to dry and die. The plant becomes weak. Sometimes there may be a small cobweb on the bush. This also indicates that the culture is affected by the mite. Through webs, pests create nests. In the spring, the invasion of ticks is more active, at this time the females begin to lay eggs.

To find out that the bush is infected, you should carefully examine it and pay attention to a variety of symptoms:

  • If mites settle in the buds of a culture, in winter they swell and become large.
  • If the pests are on the bush for quite a long time, young shoots will not be produced on it. If, nevertheless, the plant begins to grow, the leaf plates look frail and inferior. When tick buds open, gardeners will be able to see many pests.
  • In summer, the culture develops poorly, the berries fall, do not have time to ripen, the shoots are crooked and weak.

Means for processing

Some believe that it is better to get rid of pests with folk remedies, as they are more affordable and extremely effective. Others use chemicals. The second option is better to use if folk methods have been ineffective. If a person decides to use a chemical agent, it is necessary to treat the plant only before the bush begins to bloom, since the drug enters the pulp of the fruit, spoils it and can harm the human body.

If the plant was processed after flowering, do not eat the crop.

Folk methods

The safest options for getting rid of a bush from a tick are folk methods. Almost all ingredients are free, as most recipes include improvised means or parts of any plants that grow everywhere. Infusions and solutions created from such ingredients are not capable of harming people or plants. You can get rid of insects with a powerful jet of water.

Such watering of the shrub washes them off the leaf plates. But this method will not rid the plant of the pest forever. Ticks do not like high humidity, so you can try to treat the culture with water and carefully cover it with a film. This should be done in the summer when the weather is hot so that the water evaporates faster. Extremely high humidity is created inside the film, which can kill parasites.

Good remedies for any kind of ticks are ordinary infusions, the main ingredient of which is plants that have a strong smell or bitterness.

There are many compounds that will help protect yourself from pest attacks:

  • If there are a small number of ticks, you need to treat the plant with an infusion made from garlic. One hundred and fifty grams of husks and dry garlic leaves must be poured with ten liters of water (it must be warm). Insist 24 hours, then spray the culture. If dry leaves are not available, you can replace them with two hundred grams of garlic. In this case, the remedy is infused for several hours.
  • An incredibly effective remedy is an infusion of mustard. Two hundred grams of dry mustard is dissolved in a bucket of liquid, infused for 12-14 hours, then filtered. The bush is processed with the resulting product.
  • In any area, you can find dandelions that are used to repel pests, since ticks do not like this plant. Two hundred grams of roots and fifty grams of dandelion leaves are poured with ten liters of water, then the remedy should be infused for three hours. After filtering. Bushes should be treated twice - when the leaves bloom and after the flowering period.
  • In March, you can use black henbane. Two kilograms of the roots and leaves of the plant must be poured with water and boiled for several hours. Then add water so that the total volume is ten liters. The plant is poisonous, so gloves should be used when handling the bush.
  • Horseradish infusion is the most effective option to help fight parasites. A kilogram of leaves should be crushed with a meat grinder, and then infused for 40-60 minutes in three liters of water. You can use the roots, but they need to take half as much.

Solutions containing ash and soap are able to create a special film on the leaf plates so that pests cannot feed on them.Thanks to them, mites can die or stop multiplying, lose activity, which will help cure the plant. The main disadvantage of folk methods is the need to process plants many times during the entire growing season (interval - five to seven days).

Positive quality - pets and people will be safe. Spraying plants with such infusions can be carried out even when the crop is ripe.

Chemicals

It should be remembered that a variety of insecticides will not act on ticks, so you should use only acaricides and insectoacaricides. There are many different drugs that guarantee one hundred percent deliverance of the plant from these pests. The most popular and safe of them are preparations containing colloidal sulfur, as well as hormonal acaricides: Envidor, Nissoran, Kontos, Forbid 4F.

They are used when female mites begin to migrate, and also if it is necessary to remove a large number of parasites - in the spring, at the time of blooming of the leaf blades. For the effect to be good, it is necessary to spray several times (interval - 10-12 days). After harvesting fruits from a shrub, more effective and powerful preparations (organophosphorus acaricides of systemic action) should be used: Rogor-S, Bi-58, Phosphamide.

If the plantings are still young and do not bear fruit, they can be sprayed with acaricides containing dimethoate-based active ingredients: Dimetrin, Accent, Danadim, Pilarmax.

Popular drugs used by many gardeners are several remedies:

  • Iskra-Bio - a tool that keeps for a long time on the leaf plates of the plant.They can process berry bushes before harvesting, as it is safe for human health. Extremely efficient.
  • "Kleschevit" - a worthy preparation, but does not stay on leaf plates for more than five to seven days.
  • "Thiovit-Jet" - does not have phytotoxicity, keeps on the leaves for a long time.
  • "Bitoxibacillin" - may act more slowly than other means, on sheet plates is two weeks.
  • Fitoverm. The validity period is 24 hours, the pests quickly become addicted to the drug, so you should not use it all the time.
  • "Fufanon-Nova" - practically non-toxic, has a not too strong smell.

Treatment process

Growers should start treating the crop as soon as symptoms of mites appear. It is worth processing the bushes in the spring, which is most effective. In summer, it is extremely difficult to remove pests from a crop, as they actively multiply.

Spraying the crop begins before it blooms and ovaries are formed. Otherwise, the grower may lose the crop.

There are a large number of methods suitable for different types of currants. Before processing, you need to get rid of infected leaf plates and burn them. Strong scents can be used to deter. A small number of jars should be placed around the plant, which will contain turpentine or ammonia, then cover the culture with a film and leave for a day.

A few tips on how to properly treat currants:

  • If chemicals are used, it is important to familiarize yourself with the method of application. Each package has instructions on how to prepare the remedy.It is not necessary to adjust the composition of the solution or dosage, it is necessary to strictly follow the recommendations of the drug manufacturer.
  • Getting rid of spider mites is extremely difficult, so the very first remedy may be useless. In this case, the drug should be changed to another, the basis of which will be other poisons.
  • After the infected branches are cut, you do not need to leave them in the garden even for a short time, it is strictly forbidden to throw them on the soil, otherwise the parasites will be able to move to healthy plants located nearby.

Consider how to use chemicals to save shrubs:

  • The weather should be dry and calm. Sheet plates are thoroughly moistened with the prepared product both from above and from below.
  • The culture should be treated 2-3 times, with an interval of 4-5 days.
  • It must be remembered that ticks develop resistance to the agent very quickly, so it is better to alternate different drugs. For example, Sunmite is a worthy tool that has proven itself well. It helps to get rid of both adults and eggs, but rather quickly becomes addictive, so sometimes there are populations of parasites that are insensitive to the remedy. It is used only once a year.

The extermination of parasites occurs in a certain way:

  • You can only get rid of those ticks that eat processed greens. From it they receive inside a substance that inhibits the life processes of pests, which contributes to their death. The drugs are capable of killing adult ticks and their larvae, but not eggs.
  • Tick ​​families cannot die instantly. The agony continues for twelve hours.
  • It is necessary to carry out three to four treatments at intervals depending on weather conditions.If the temperature is up to thirty degrees - 5-6 days, above thirty - no more than three days.

Prevention

To prevent the gall mite from destroying the plant and the future crop, it is necessary to prevent its invasion. It's much easier than saving a culture from its influence. If the bush is strong and properly cared for, it has good immunity and high resistance to pest and disease attacks. In order for the culture to grow healthy and strong, you need to carry out some care activities.

    • Before planting, it is important to disinfect the planting material. The solution is prepared very simply: forty grams of colloidal sulfur, ten grams of Agravertin and 10 liters of water.
    • In March, sanitary pruning should be done. It is necessary to get rid of infected, damaged and dried branches. Do not leave stumps, as various diseases will begin to develop in them. Old shoots are also removed. The bush is thinned out for good ventilation.
    • It is required to find a special support to raise the branches of the culture higher above the soil. This measure contributes to the preservation of branches during the period of fruit ripening. Without supports, they will begin to break off, as the harvest is heavy. Any damage to the branches is a gateway into which infections can enter, weakening the plant.
    • From the soil around the plant, you need to remove various debris, and then burn it. Quite often, because of it, comfortable conditions are created for the life of parasites and the emergence of pathogenic bacteria, which cause disease damage to the culture. Spider mites overwinter in fallen leaves.
    • After the snow cover has melted, the trunk circles should be loosened so that a sufficient amount of air enters the compacted soil.
    • When the growing season begins, it is necessary to apply fertilizing containing nitrogen to the ground. This helps stimulate the formation of ovaries.
    • There should not be a lot of weeds in the garden, as they can have a variety of pests in winter, including kidney mites. In March, they move to the bushes.
    • Currants should be propagated by unaffected shoots or seedlings that have already taken root. In order to prevent the occurrence of affected plants, it is necessary to warm them up in boiling water (no more than forty-six degrees) for fifteen minutes before planting.
    • Foliar feeding and regular application of nutrients to the soil will help strengthen the plant's resistance to any parasites.
    • In the spring, it is necessary to whitewash shrubs affected last season. This allows gardeners not to worry that the mites will move up and attack the plant again.

    resistant varieties

    Some believe that it is better to immediately purchase a currant variety that is resistant to various diseases and parasites.

    There are many options from which to choose a pretty good one for any gardener. They are resistant not only to ticks, but also to many diseases.

    • "Early Potapenko". The fruits appear quickly, the berries are sweet, large. The bushes are compact, not too tall. The disadvantage of the variety is that it quickly ages. However, it has a high resistance to parasites.
    • "Pleasant" is a vigorous plant, has large, juicy berries. The bush is tall, able to calmly survive severe frosts in winter, droughts and heat in summer.
    • "Vigorous" has a small number of leaf plates, low, fruits are large, plum-like in shape, have a high density and a sweet taste.
    • "Nara" - the bush of the variety is of medium size, the branches are sprawling and curved.The fruits are extremely large and sweet, the harvest ripens early.
    • "Cypriana" - an early variety with large berries. Early, self-fertile. The bush is large, has an average height.

    In order for a bush of black or red currant to please the gardener with a large and healthy harvest, it is necessary to invest a lot of time and effort into it.

    Only then will the culture develop correctly, remain healthy and give the owner sweet fruits and pleasant emotions. If you do not monitor the health of the berry bush, currant pests and diseases will cause its death.

    It is better to take preventive steps to protect yourself from such problems and not worry about the health of your plants, which are constantly at risk.

    For information on how to deal with spider mites on currants, see the following video.

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    The information is provided for reference purposes. Do not self-medicate. For health issues, always consult a specialist.

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