Many gardeners planted currant bushes on the site. This berry is extremely useful, it grows well in the middle lane and tolerates frosty winters. But, like any garden shrub, has its enemies and pests. Quite often there is a kidney tick on a currant, the countermeasures of which are cardinal and soft.
How to identify the pest and what harm does the tick?
A small blackcurrant insect mite spends its whole life on a currant bush. This is a small (0.15-0.3 mm) creature with an elongated body in females. In the area of the proboscis placed 2 pairs of legs and 1 pair of legs. Females are twice as large as males. If a kidney tick appeared on a currant, measures to combat it can lead to different consequences. Therefore, you should act very carefully.
Insect winters in the kidneys, and with the onset of heat is activated. Females lay eggs in young buds. Soon, the larvae hatch from them. As they grow, they become cramped in one kidney, and they spread to neighboring ones. So the whole bush is affected, as well as everything growing next to it. The way the young shoots struck the tick, the photo shows best.
A diseased kidney does not develop, and if an escape grows from it, it is mutated. Besides the fact that the number of shoots decreases and the crop is less on the currants, the insect is a carrier of viruses. From his bush can become infected with curl or marbling. Currant viruses are not treated for viruses, and the bush must be removed. There are several methods of struggle. Among them is to choose the most convenient and suitable.
Boiling water - the most effective means
Most gardeners are trying to solve the problem with minimal losses. Pouring boiling water kills all the larvae - they are welded, and the bush is not harmed, on the contrary, it becomes stronger. In addition, this process enhances the plant's immunity against powdery mildew.
When watering must be guided by several rules. First, do not use 100% boiling water. While the water is carried to the garden, while it is poured into a watering can, it cools down a little, which does not damage the young buds. Secondly, in order for the shower to be more efficient, it is necessary to tie the branches together, to make them more compact.
The disadvantage is that the kidney tick on the currant measures the fight against it is premonitory. It begins its activity with the first warm rays, and at the same time, the kidneys begin to swell. If the bush is already awake, then you can not handle it. It is necessary to choose a period when it has already become warmer, but there is no green haze on the bush. Also, dirt on the site may make it difficult to perform work. Pouring (except for the spring period) can be carried out in the winter, when the currant will shed the leaves and the damaged buds become visible.
Patience and attention requires manual selection of the kidneys. In this case, the main thing is not to lose time. It is proposed to study how the kidney mite behaves on currants, photos, measures to combat it. Kidneys should be rounded, swollen and resemble cabbages. If one of them has already opened, then the tick from it, most likely, has already moved to another.
Sorting the kidneys can be carried out in winter or early spring. The disadvantage of the method is that during such a process in springtime, the probability of the removal of young shoots is high. Before opening, all the kidneys swell, so it becomes difficult to visually distinguish the sick from the healthy.
Another disadvantage is that you absolutely need to study the whole bush. If at least one infected kidney is left, the reproduction of the pest will continue. Measures to combat currant bud mite will be unsuccessful. The key to successful kidney removal is to carefully study the photographs of the affected bushes. Only with full confidence that the gardener will be able to remove all the diseased parts of the shrub, you can proceed to the inspection. After getting rid of infected kidneys, they are collected in one place and burned.
Among the chemical preparations for the fight against insects are colloidal sulfur and lime-sulfur decoction (ISO). Currant bud mite, measures to combat which can have a negative impact on the bush, does not tolerate sulfur, because it is sensitive to this element. It is applied in the form of a solution of 10 g per 1 liter of water. It process bushes during the beginning of flowering and after it. The second time you can make a less strong solution. Although this year the harvest may be spoiled, it will recover next year.
ISO is used in the same way. The solution for the first spraying is 2%, and for the second - 1%. When spraying, it is necessary to carefully treat all the affected and healthy branches, as well as the ground at the roots of the plant. Some drugs can be used before the period of swelling of the kidneys. It is necessary to read the instructions in order not to be mistaken with the proportions.
In addition to tick control, sulfur enhances currant immunity against fungal diseases. In some varieties of plant preparations with its content cause leaf fall. You need to know about this before spraying.
Drastic measures - pruning
When the kidney tick on the currant ignores the control measures and continues to develop, it is necessary to proceed to cardinal actions. These include cutting the bush to the root during the autumn period or its complete destruction.
In the first case, the shoots of damaged currants are cut in the fall. All of them are collected and burned so that the parasite does not spread further. This procedure will not harm the currants. In the spring new shoots appear and a healthy bush is formed. The only drawback - the harvest may not be at all or within a few years. Until the bush is restored, it will be significantly lower than before trimming. Usually the rejuvenation of the bush gives only a positive result.
The second method is suitable for severely affected bushes with signs of viral diseases. If you do not get rid of it in time, it is possible for the parasite to spread to other garden crops. The bush is dug and burned at the place where it grew.
One of the most harmful viruses is the kidney tick on currants. How to deal with it, few know. After all, he can stay on the tools with which they cut the bush or dug it. For prevention, they can be treated with any modern detergents or special chemicals.
How to deal with kidney mite without using dangerous measures? For this you can use folk remedies. These include tea and garlic. Garlic is a plant that repels many parasites and carriers of various diseases. It can be planted between currant bushes as a prophylactic.
If an infection has occurred, then before and after flowering can be sprayed with a strong garlic decoction. To do this, take 100-200 g of peeled garlic, finely chop and pour boiling water (10 l). Having mixed broth, it is possible to start spraying of bushes. If flowering has already begun, then the tincture can greatly affect the process of pollination. As an alternative means for spraying, you can use a decoction of dandelion, walnut or tobacco.
Tea leaves are prepared in the proportion of 50 g per 25 liters of water. She process young cuttings before planting. The branches are immersed in the solution for 3 hours. You can soak it in the separated broth. During the day it will become less harmful and will not burn the fragile planting material.
Acaricides are an alternative to sulfur
Many gardeners do not know what else the kidney mite on currants is afraid of, measures to combat which can harm the shrub. Prevention of acaricides is best perceived. They make spraying not only from the mite, but also from other insect pests. On the market, products of this category are presented in a wide range. Before use, you must read the instructions for use.
Prevention as the best method of struggle
If the kidney tick appeared on the black currant, the control measures may be different. But it is better not to allow it to appear. To do this, periodically update the bushes, monitor the quality of young plants. Timely feeding, fertilizer and proper care will strengthen the currant's immunity to ticks and other diseases.
For every gardener, a large mite is a kidney mite on a currant. How to deal with it correctly, few people know, because there are many methods. If you have time, you can try out a few of them. But the sooner the fight against ticks begins, the less damage it will inflict on the plant.
Visually detecting a kidney mite is very problematic - this pest has microscopic dimensions, its calf length is no more than 0, 2 mm. Despite the negligibly small size of this pest is very dangerous for berry bushes.
Bud mite prefers to settle on the bushes of black currant. Although shrubs of white or red currant, as well as raspberry and gooseberry bushes can suffer from the wrecking of the parasite.
Plant damage occurs in several ways:
- the tick is transferred to the shrubs by the wind,
- pests are carried by birds or other insects,
- initially sown seedlings are planted in the soil,
- defeat occurs through contaminated garden tools.
The lack of result may be due to improper use of the drug during the processing of the shrub. Mite propagation depends on the ambient temperature, the first development of the larvae occurs at a temperature above 10 degrees Celsius, but their migration will take place no earlier than three weeks before the air temperature reaches 20 degrees. The higher the temperature, the smaller the period of development of the larva and infection of healthy buds on this or other bushes.
Depending on the temperature, the number of treatments should be at least three:
- Primary treatment helps to get rid of adult mites, as well as larvae that are resistant to low temperatures. This process does not allow the eggs to go through the full cycle of development.
- When the temperature rises, the second stage of egg development occurs. If you do not have time at this stage to process the shrub, then the larvae will have time to transform into bream, make the next bookmark of eggs.
- The last treatment is a safety net, which allows to destroy the surviving females of the currant mite and prevent re-infection of the shrub.
Processing is best started at the first relocation of the larvae, which at this point in time can be seen with the naked eye. After the first treatment, it is necessary to track the interval of treatments and the temperature, which is about 10 days and 20-25 degrees, respectively.
The fight against kidney mite on currants in the spring can occur with the help of chemicals intended for the treatment of shrubs. Since parasites are arachnids, insecticide acaricides or acaricidal preparations are used to combat them. It is worth remembering that improper use of a chemical agent can adversely affect health. Therefore it is required:
- when processing the garden in autumn and spring, alternate preparations to avoid addiction,
- processing is carried out according to the instructions
- while using the product, protect your skin and eyes with gloves and goggles.
Shrub processing should be carried out in the most unfavorable time for ticks - during the resettlement of larvae. At the stage of blooming buds, the larvae go out into open space, such movement lasts about 20 days. It is during this period that shrubs should be processed.
To destroy ticks on black currants, use the following acaricidal agents:
The second stage of the processing of the garden occurs after harvest, for this purpose more powerful means are used:
What spring to process currants from mite? Such drugs include bioacaricides, developed on the basis of bacteria and fungi that are not harmful to the human body. Despite the positive aspects of the drugs and their effectiveness, the use of bioinsectoacaricides and bioacaricides still has a number of limitations. The highest result can be achieved with the use of products at temperatures above 15 degrees; use in cold and windy weather is useless. Bioacaride preparations include:
How to get rid of mite on currants? The use of funds occurs depending on the temperature, interval, until the end of flowering, immediately after harvest. It is necessary to observe the alternation of drugs that are well combined with sbiofungicides. When using new products, it is necessary to check their compatibility, the dosage and method of dilution can be read on the package. To achieve maximum effect and eliminate the death of a plant, it is necessary to strictly follow the instructions.
Popular folk recipes
Defeating the currant bud mite is possible in a cold spring using bioacaricidal folk remedies, which include an infusion of:
- green walnut shell,
- onion peel,
How to deal with kidney mite? You can protect currant bushes if you plant perennial onions or garlic around them. For pests such smell will be unbearable, in such an environment the possibility of reproduction is lost. If any chemicals are used in parallel, then such garlic and onions are not suitable for food. The control of ticks with the help of herbal preparations is not a 100% guarantee, it will only slow down the reproduction process, but not completely stop it.
You do not know what to treat currants from mites in the spring? In order to get rid of currant mite, they often resort to the use of colloidal sulfur, which can be processed before the end of flowering. To prepare the solution, 10 liters of water, 75 g of karbofos and 10 g of colloidal sulfur are needed.
Sulfur is a rather dangerous remedy; when preparing a solution, it is necessary to take precautions to avoid burns of young leaves. Therefore, when re-processing, after harvest, the concentration used is halved. It should be noted that sulfur is most effective at temperatures below 20 degrees Celsius.
Due to the long-term effect of the drug and the rapid formation of the crop of currant bushes, the tool is used only once during the period of maximum budding and extension of the buds.
What is harmful kidney mite
The pest belongs to four-legged mites and has very small dimensions (up to 0.2 mm). It looks like a worm and is almost uncolored; pests settle in the kidneys of the plant, suck the juices out of them, causing the bushes to weaken and then die. Morozov tick is not afraid. With the onset of spring, females lay a huge number of eggs, and after the appearance of fry, the kidneys unnaturally swell and assume a rounded shape.
Ticks are quickly settled in all the shoots, and the wind is transferred to the neighboring bushes. In one season, females lay eggs up to 5 times, which leads to a rapid depletion of plants. It is easy to notice the tick's harmful effect: by the end of summer, the affected kidneys become similar to diseased cabbage heads. In addition, the tick sucks juices, it carries and viral diseases.
Mite makes currant buds look like damaged cabbage
What can be done in the fall
It is impossible to completely eliminate the tick in the fall, but it is necessary to start to do it. After all, only those buds are inflated, in which there are hundreds and thousands of pests, and many of them have already moved to other buds, which so far look unchanged. Start with mechanical procedures.
If only a few swollen buds are found on the shoots, they should be immediately cut off and burned. If 20% or more of the kidneys are affected, the branches are cut off near the ground. With a significant infection of a young bush (up to 5 years of age), it is better to cut off the entire above-ground part: in the spring new shoots will appear, and in 2–3 years the bush will fully recover. Older bushes destroy.
The ticks themselves can only be seen with good vision, their number in the damaged kidneys is enormous.
The struggle does not end there. However, the autumn use of chemicals is ineffective: they almost do not penetrate into the kidneys, and with the onset of cold time, ticks migrate little to the plant. But you can try to spray the bushes.
Conventional insecticides do not act on the tick, acaricides are used against it.
Chemical acaricides (Actellic, BI-58, Rogor-S, etc.) are dangerous to humans (belong to the 2nd or 3rd classes), so they should be used with caution. Most spraying is carried out in the spring, but you can do it after harvesting. For example, Actellic contains organophosphorus pyrimiphos-methyl as the active substance, and BI-58 and Rogor-C - dimethoate. They are used strictly according to the instructions in relatively warm weather.
BI-58 is considered less dangerous than Actellic, but it is Actellic that has gained increased popularity in recent years.
Менее опасны в использовании препараты коллоидной серы, например, Тиовит Джет, но они эффективно работают лишь при температуре выше 18 о С. В этих условиях активны и практически безопасные для человека биокарициды (Фитоверм, Битоксибациллин, Акарин и др.).
Currant treatment on warm autumn days will help reduce the number of ticks, but the impact should be done in November, when the plants become dormant. At this time, the bushes doused with hot water (from 70 to 80 o C). Half a bucket of water on a medium-sized shrub, poured from a watering can, will not harm healthy kidneys, but will kill most pests.
The water in the pan is heated almost to the boil: until it is poured into the watering can and reaches the kidneys, the temperature just drops to the optimum values.
The fight against kidney mite on the currants is very difficult, but if you are late with it, you can lose the bushes. Measures to destroy the pest should be taken immediately after its detection: they are most effective in the spring, but autumn treatments should not be missed.
Kidney currant mite
Kidney currant mite belongs to the four-legged mites. Seeing them because of the microscopic size is extremely difficult. The external size of adult female kidney mites is 0.2 mm, while males are even smaller. The body of the kidney currant mite is white, wormlike, elongated and round, with 4 legs. The legs consist of segments, hence the name arthropod. With the help of piercing-sucking mouth apparatus, mites suck the sap of plants, condemning them to death.
Currant bud, affected by currant mite, in section. © Ötökkätieto
The development cycle of the kidney currant mite
Fertilized kidney currant mite kidney winter in the kidneys. Closed shelter protects them from winter frosts and other weather disasters.
In spring, when the air warms up to + 5 ° С, the female currant mite females begin to lay eggs intensively. One female is able to lay about 8,000 eggs. In one kidney there can be 3-8 thousand individuals at a time, which is why the kidney swells and becomes like a miniature pea. In the section, such a pea resembles a bursting cabbage cabbage.
The development of larvae of the currant mite kidney mite lasts about 6-12 days. Voracious young individuals, through the tears of the “kochanchik” during the budding period, are implanted in healthy buds and start feeding. Sucking the juice of young shoots, flower and vegetative buds, they lead to the death of the still unfolded plant organs. Relocation of young females and larvae of the currant bud tick lasts about a month, coinciding with the phase of onset and mass flowering. During this period they can be seen with the naked eye. The horde of voracious pests by the wind, clothes, rain is transferred to other bushes.
How dangerous is the kidney currant mite?
According to the level of harmfulness of the currant mite kidney mite belong to the group of very dangerous pests of garden fruit crops. In one year, 1 female currant mite kidney mite gives 5 generations (2 spring and 3 summer-autumn), which is about 15-40 thousand pests. In the process of development, kidney currant mites have adapted to endure climatic disasters in protected conditions (buds, shoots, galls, etc.), which complicates the fight against these pests. The developed fitness is so reliable that if you do not take cardinal protective measures, the berries (black, red, white currant and gooseberry) can die in one season.
Measures to combat the kidney currant mite
It is very difficult to fight with kidney currant mite, which almost all of its life is spent inside the kidney. The maximum number of vulnerable larvae could be destroyed by treatment with pesticides during their relocation. But, given the period of relocation (budding and flowering) processing is strictly prohibited, since at this moment there is pollination by beneficial insects (bees, bumblebees). Therefore, kidney currant ticks are classified as highly dangerous pests. The methods of active destruction of the kidney currant mite are carried out in the period before the beginning of flowering and after the harvest.
All types of struggle with kidney currant mite on currants can be divided into:
Timely irrigation, fertilizing and processing plants, which will increase the plant immunity to the damaging effects of pests.
For planting and breeding use only zoned, resistant to pest varieties.
It is very important that the planting material is not affected by the pest. To prevent infection, you can drop a sapling or a rooted cutting for 18-20 hours completely into a working solution prepared from agrovertine (10 g) and colloidal sulfur (40 g) in 10 l of water.
It is possible before planting seedlings and rooted shoots, hold in hot water (+40 .. + 45 ° C no more) for 15 minutes,
Kidney currant mite larvae do not tolerate high humidity. This property can be used and, at the first relocation of hatching larvae (the first spring generation), to wait for the berry.
Every year, in early spring (early March), dormant black, red and white currant bushes should be treated with dormant buds.
Procedure: After a sanitary and thinning pruning of currant bushes, with a blowtorch or a gas burner, at a distance of 8-10 cm, run along the branches 2-3 times from top to bottom, without stopping, so as not to burn the branches. Heating with fire will destroy the aphids and most of the kidney mites without damaging the plant. The fire will not damage healthy kidneys, covered with dense upper scales. Sick kidneys are friable, the cover is torn up by the overpopulation of the kidney by pests that lay eggs of future offspring. They are very vulnerable during this period and the fire (high temperature) burns and causes the death of unwanted "tenants". Of course, not all females die with this method, but their activity decreases sharply.
In the same period, instead of fire treatment, currant bushes can be “bought out” with a hot shower, spending 1.0-1.2 buckets of water for a large bush.
Performing the procedure: For treating the bushes it is more convenient to use a sprinkler with a sprayer. Pour boiling water into the container. Above the bush approximately from a height of 15-20 cm we wash the bush. At low air temperatures, hot boiling water, while filling the polivalki and until the water reaches the bush, will cool to +60 .. + 70 ° С. Such a temperature does not damage the plant, but will destroy some of the pests (the principle of action is the same as during fire treatment) and fungal infection.
Physical destruction of kidney currant mite
For spring pruning, carefully inspect each currant branch. If there are 1-2 swollen buds on a branch, they are cut off and put into a bag, which is then burned. If the number of swollen buds is 4-6 pieces, and they are scattered throughout the branch, it must be cut and burned. Such physical destruction of the kidney currant mite is effective, especially if this procedure is performed annually in spring and autumn.
The use of chemical and other drugs to destroy the currant mite kidney tick
The following methods for the destruction of the kidney currant mite are not safe for the host, his family, domestic animals and birds. Therefore, before starting the use of pesticides for the destruction of the tick, it is necessary to thoroughly prepare, examine in the special literature the effect and aftereffect of the chemical, its effectiveness, repeated use and technical recommendations for implementation.
The frequency of treatments
If you violate the requirements of the instructions for use of the drug, its effectiveness can be reduced to zero.
The development cycle of the kidney currant mite depends on external temperatures. The first active development of the kidney currant tick larvae begins at an air temperature of +10 .. + 12 ° C, but their release and resettlement can occur in 25 days, until the air warms up to + 18 ° C. The higher the air temperature rises, the shorter the period of development from the egg of a carnivorous larva, which will infect new buds in the native and neighboring bushes (Table 1).
Table 1. Intervals of treatments with anti-kidney currant mite
What a kidney tick looks like
In appearance, the kidney mite resembles a small worm, the size of the calf: 0.2 mm in length, 0.04 mm in width. Mite populates the currant bushes buds. The entire life cycle of the parasite is on the plant.
The parasite refers to a four-legged mite species. On the body of the parasite there is a piercing-sucking mouth apparatus, with the help of which mites feed on the sap of the plant, because of which it dies.
Fertilized female ticks live throughout the winter in the currant buds. "Kidney house" protects females from frost and adverse weather conditions. In March, when the air temperature warms up to +5 degrees, the female mite begins to lay eggs. In color, they are transparent white, as they grow, the color changes to milky white. The shape of the eggs resembles a slightly elongated circle or oval. During flowering mites are selected from the buds.
Getting out, mites grow roots on the leaves, bark. Most of the parasites at this stage die. The surviving mites (approximately 1-2%) move again to the kidneys, where the process of egg laying resumes. Ticks can exist and develop up to 5 generations, while in the kidney.
On a note. The female mite lays up to 8,000 eggs at a time. One kidney can be a refuge of 3000-8000 individuals, while the kidney swells and resembles a small pea. If you cut such a kidney, then inside it will look like a cracked head of cabbage.
The larva inside the egg develops in 6-12 days. The voracious larva gets out through the microcracks outside and populates into healthy buds, starts sucking the sap of the plant. When attacking ticks, flower buds lack nutrition, fade.
During the period of migration of larvae and females of parasites can be seen when inspecting the bushes. The kidney tick is transferred to other healthy bushes with the help of wind, rain, human clothing, so it is important to timely deal with the pest.
What harm is it
The level of harm to the kidney currant mite is the highest among the parasites of horticultural crops. During the spring and summer season, the female mite displays up to 40,000 harmful ticks.
The larvae develop in the kidneys, where they are well protected from natural disasters, which complicates the process of extermination of pests. If you do not take measures to combat the kidney currant mite, then berry bushes can die in one season.
The parasite is more dangerous than the spider mite. When the black currant bushes become infected with a spider mite, the leaves are entangled with thin white threads (cobwebs). It is necessary to fight the pest, as well as the kidney mite, since the vital activity of the spider mite also threatens the plant with death.
How to deal with kidney mite on currants
The parasite spends almost all developmental stages in the plant's buds, therefore, it is not easy to destroy the pest. To destroy the main part of the larvae, it is necessary to process the bushes with poison-chemicals during the period of the resettlement of parasites.
The resettlement time of the larvae coincides with the period of currant budding and flowering, the use of chemicals at this time is strictly prohibited. Therefore, the processing time of the bushes transferred before flowering or after full harvest.
With a strong defeat of the bush, the chances that the plant will survive are minimal, and the risk of spreading the parasite is high. It is recommended to dig currant bushes with the root and burn them.
Before planting young seedlings, the area is further treated. Seedlings need to buy healthy, in proven stores.
Currant Mite control methods
There are several ways to deal with tick on black currants:
- Agrotechnical techniques
- Folk remedies,
- Biological method
Black Currant Care
Compliance with the rules of agricultural technology will help grow healthy currant bushes.
With dense planting of bushes without loosening, watering the soil increases the risk of dangerous pests. Agrotechnical activities consist of the following tips and recommendations:
- Choose the right area to meet the soil requirements for planting young seedlings,
- Crop rotation should be regular,
- The beds must be cleared of weeds, loosen,
- Observe the mode of irrigation, fertilization and fertilizing for garden crops. These activities improve plant resistance to various diseases,
- Acquire quality planting material. Varieties are selected for resistance to diseases and pests,
- It is important that the seedling is not infected before landing on the site. Handle seedlings before planting. For disinfection use a solution that can be made independently. Take 10 liters of water, add 40 grams of colloidal sulfur, 10 grams of agrovertine, mix the ingredients well. Place the seedling for a day in the solution,
- Larvae do not tolerate high humidity. Therefore, during the relocation of the larvae, you can well spray the bushes with water,
- Visually inspect the bushes for the presence of insect pests. Conducting pruning in the spring, it is necessary to check every branch on the bushes. When 2 deformed kidneys are detected, they are cut off and burned. If the number of infected buds reaches 6, and they are located in different places, then the branch is cut off completely. With a strong lesion of the bush with a kidney mite, it must be dug out and burned,
- Every year at the beginning of March, currant bushes can be treated with fire or poured with hot water (+ 70C).
Description of the fire treatment procedure
First, carry out sanitary pruning bush. Using a blowtorch, it is necessary to “burn” the branches of a bush: keeping a distance of 10 cm, quickly moving the lamp from top to bottom several times without holding it in one place. The fire will help destroy the main number of mites and aphids, healthy buds and shrubs will not be affected. This method does not destroy 100% of parasites, but the activity of ticks will decrease.
Treatment of bushes on the summer cottage with chemical preparations should be carried out in accordance with safety precautions, since toxic chemicals are dangerous to humans, animals, and birds.
Before starting work, it is imperative to study the effect of the drug, the effectiveness, the rules of use, the regularity of the treatments. If you do not follow the instructions for chemicals, you can harm the plant and others.
Kidney larvae actively develop with the onset of heat. The higher the temperature, the faster they develop, and, therefore, the processing interval of the bush decreases. For example, at temperatures up to +18 degrees, the period of development of the larva is 30 days, the bushes should be processed every 12 days. If the air temperature warms up to +30 degrees, then the period of development of the larva passes in 6 days, it is necessary to carry out the treatment every 3 days.
The main three treatments:
- For the first time, when processing in early spring, kidney mites are destroyed, which have wintered on the plant,
- The second stage should be carried out at the time of growth and relocation of larvae. If you are late with the treatment, the larvae develop to an adult individual, which again lay eggs for future voracious larvae,
- The third time the procedure is carried out for safety. If females survive, they will cause a new outbreak of currant infection.
To get rid of the parasite, use insectoacaricidal or acaricidal drugs.
Safety measures when working with chemicals:
- To study the instruction to the preparation and to follow the indicated instructions,
- Use rubber gloves, gown, headgear, respirator, goggles,
- It is desirable to change drugs in order to avoid the effect of addiction.
Larvae are most visible and vulnerable during the relocation period. At this time you can use acaricides:
In the fall, when the harvest is fully harvested, you can use more aggressive chemicals:
The use of biologics
The use of biological preparations based on positive strains of bacteria and fungi is not dangerous for humans.
To combat ticks use:
Biologics are effective in warm, windless weather. With early warm spring, the effect of the drug is most noticeable.
Dosage indicated on the package. The use of biologics should be alternated with each other, as it is possible to cause addiction to the remedy in parasites.
Currant kidney mite: who is it
Despite the fact that the kidney mite is extremely common and occurs on almost every summer cottage of the middle zone, few people have seen this pest with their own eyes. He hides from prying eyes between the scales of the kidneys, where he lives, multiplies and feeds on the juices of our beloved currants.
But the results of his life saw everyone! Under the influence of the saliva of the mite, the currant bud swells, loosens, increases in size and becomes similar to a ball. Several generations of mites live within each of these spherical buds. When the inhabitants of the kidney becomes crowded, the young leave the “parental home” and move to another kidney. Thus, the pest spreads, more and more kidneys are deformed, less and less remains on the bush of healthy fruit-bearing branches.
The movement of ticks to “new territories” begins during the nomination of the buds and can last two to three weeks. It is during this period that the tick is most vulnerable, it is during this period that measures must be taken to destroy the pest.
How to deal with kidney mite without chemicals
Чтобы побороть злостного клеща без применения химии, мы можем действовать различными методами.
Первый способ борьбы можно назвать механическим. Наша задача на первый взгляд проста – до распускания листьев оборвать и сжечь все вздутые почки, ведь враг затаился внутри. Тут главное не перепутать почки, пораженные клещом, с почками, содержащими цвет. After removing the harmful “balls”, it is recommended to arrange shower bushes from boiling water. The most common boiling water just to pour over the top of the bush from the watering can, to wash off and destroy the "random wanderers" who may be outside the kidneys.
It would seem so much easier. But if there is not one currant bush on the site and not two, but much more? Only a lot of deformed kidneys can take a lot of time. Therefore, you should pay attention to the way the number two.
As soon as the inflorescences and leaves of currant begin to appear, we begin spraying the bushes with biological means against pests (Fitoverm, Actophyte, Bitoxibacillin). Processing is carried out three times with an interval of a week. But in this case it was not without pitfalls. The fact is that bio-preparations act much better in warmth, and currants begin to turn green quite early, when frosts and prolonged rains can still occur. Unfortunately, in bad weather, the effectiveness of bio-pesticides decreases.
In bad weather, garlic can be used instead of bio-preparations: dilute 100 grams of crushed garlic with ten liters of water and apply immediately.
Another remedy for kidney mite is radical trimming of currants. That is, we need to make up our mind and cut to the base all the branches of the bush, without exception. Young growth gradually forms a new bush, for which we will need to monitor and tear off buds at the first hint of a tick.
And when safe means are powerless, “heavy artillery” comes into play - chemical pesticides to combat the tick.
How to get rid of kidney mite on currants with pesticides
The most effective means in this list is colloidal sulfur (Sulfide). In the period from bud swelling to the end of colloidal sulfur flowering, the bushes themselves and the ground around them are sprayed.
Can be used against kidney ticks and acaricidal preparations: “Neoron”, “Kinmiks”, “Nitrafen”, “Apollo”, “Aktelik”, “SanMite”, “Vertimek”, “Endidor”, “Nissoran”, “Oberon” and t .P.
Prevention of the appearance of kidney mite on currants
Finally, it is time to talk about prevention. If you are the lucky one who is just laying his garden, we advise you to take all possible measures in advance so as not to let the tick to your currants.
The first thing you should pay attention to is the quality of planting material. By purchasing seedlings in a proven nursery, you can be sure that there is no infection, but if you receive cuttings from a neighbor in the cottage, it is better to be safe and disinfect them before planting.
To do this, the water is heated to 45 ° C, and cuttings are lowered there for 20 minutes. Then, for two hours, the cuttings are kept in the “Fitoverma” solution prepared according to the instructions. The second option: a day before planting the cuttings to prepare tea brew at the rate of 25 grams of tea per bucket of water. Before rooting the cuttings, they are recommended to stand in tea for about three hours.
In the future, we use the power of phytoncide plants. Every autumn, plant garlic around currants. It is not necessary to use for this purpose, full-fledged cloves, the bulbules, which are formed during shooting and flowering, are also quite suitable. Phytoncides of garlic mites are not at all to their liking, since they interfere with its reproduction.
We wish you success and great harvests!
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