Description of the polka raspberry variety
Who doesn't love to feast on juicy ripe raspberries? There are probably not many of them. There are more than 120 varieties of this aromatic and healthy berry. One of the most popular today is the polka variety., she is a shelf, with a description and reviews of gardeners of which can be found below.
Description of the variety raspberry polka
The polka raspberry variety is a remontant medium-sized variety was bred in 1993 by Polish gardening researchers from Brzezn. Hence the unusual name of the variety: Poland - polka. The selection result exceeded all expectations. The polka quickly became popular in Europe and beyond.... The large-scale distribution of polka to different parts of the world took place after the international agricultural exhibition in 2003 "FruitFocus".
The curiosity of this variety is that the berries ripen even at temperatures of 0 ° –2 °.
Polka bears fruit from the end of July until the first frost (annual shoots). The yield of this variety is extremely high.but. According to the results of tests of experimental stations, on average, it is about 4 kg per 1.
You can harvest twice a year - in addition to harvesting the main harvest, last year's shoots give a harvest in early summer. If you grow raspberries for your own needs, you can leave part of the shoots for the next year, then, due to the double harvest, you can feast on raspberries from the beginning of summer to the end of autumn. On an industrial scale, in order to avoid damage to the crop (twice a year - a large load on the plant), it is advisable to cut off the shoots annually and collect only the main crop. Then the ripening period of the polka will be commercially profitable, the main part of the varieties have already borne fruit, and the polka is coming to the trading rows.
Strengths and weaknesses of the variety
There are such the main advantages of the polka:
- perfect berries (considered the best dessert variety in Europe);
- high yield (there are cases of yields of 12 tons per hectare)
- long fruiting period (subject to good feeding, it is realistic to harvest twice a year without an unbearable load on the plant);
- firmness of sprouts and berries (the berries do not flow, do not rot and are well preserved on the bushes);
- keeping quality, transposable and dry Iago detachmentd (even after freezing, the berries look like fresh);
- good at conservation (suitable for both classic raspberry jam and juices, fruit drinks and jellies);
- absence large expressed thorns (when harvesting, you do not need to worry about the safety of the skin);
- immunity to the most common diseases of this type (fungal, viral);
- absence of "serious competitors" during the fruiting period (rightfully considered one of the most profitable varieties).
Now about the cons:
- not frost resistant... Needs shelter and cutting for the winter at the root;
- does not tolerate high temperatures (above + 35 °). It is necessary to shade berries and bushes, even with drip irrigation;
- predisposed to diseases of the root system (rot, root cancer, etc.);
- forcing shoots substitution;
- needs to abundant nourishment (with a lack of potassium, nitrogen, organic matter, the formation of shoots decreases).
As you can see from the lists, the disadvantages of the polka pale before the merits. It can be summed up that polka is good for both commercial cultivation and for itself.
Characteristics of berries and bushes, productivity
The height of the polka shoot can reach 1.5 meters. This variety has a very high shoot resistance. The root system is also quite powerful, one root of an adult plant is able to form many shoots with weakly expressed thorns.
Raspberry polka is beyond praise. The shape of the berries is correct, conical. They are large enough (2.5-3 cm), shiny, have an elongated shape, deep red color, small drupe, strongly pronounced taste and pleasant delicate aroma. The correct balance of sweetness and acidity, as well as density and wateriness will impress connoisseurs of this healthy berry. Each brush gives an average of 8 berries weighing 3-5 grams each, which you will agree, is pretty good.
Planting, breeding and care rules
Polka seedlings are planted before or at the end of the growing season. Usually either late autumn or early spring. Proper planting and pruning of planted plants is of fundamental importance. It is advisable to choose an area with good lighting, since the shoots are too stretched in the shade. Landing can be of a pit or trench type, it occurs in a belt way. It is necessary to clear the plantation from weeds in advance. It is necessary to plant seedlings so that the distance between plants in a row is 0.5 / 1 m, row spacing is 1.5 / 2 m... Over the course of a year, the rows will be adjacent, the distance between the seedlings will be about 35 cm. It is advisable to leave no more than 7 shoots in the bush, otherwise the plant will need very abundant nutrition. It is optimal if the soil is moderately drained, podzolic or slightly acidic (pH not higher than 7). A suitable nutrient mixture is laid in a trench or hole 40/45 cm deep (potash, phosphorus and dobriva plus compost or manure are traditionally used).
Nitrogen fertilizers are used only for feeding, as they are harmful for rooting.
About eating polka: the growth of seedlings is quite active, the plant needs the first bait already in Aprile. Here, nitrogen fertilizers are added to organic potash and phosphorus fertilizers. You can use complex feeding. The second feeding is carried out in the middle of summer and the third in September.... Do not forget about regular watering. By the way, plants are more active in assimilating fertilizing, if it occurs after watering, then it is advisable to loosen the soil. Do not overdo it with fertilizers, an overdose is harmful in the way that the plant can take care.
Although the variety is medium-sized, the shoots need support. Especially in conditions of insufficient illumination, the tops of the trunks of the seedlings bend under the weight of the berries in the brush. As trellises, it is best to use V- or T-like supports made of galvanized wire, at least 4mm thick. Distance between rows of wire - 50-70 cm... The wire tension is optimally carried out using special tensioning devices. After the shoots are bred and laid on different sides, fixing on the wire with pieces of strong rope. From time to time, you need to thin out the raspberry tree, as the polka gives a lot of growth.
For the winter, shoots are advised to cut to zero. (except for cases when for personal needs it is necessary to "stretch" the crop) and cover (except for the southern regions). The polka is mulched with straw, tyrsa, and high-moor peat. Cover with agrofibre on top. It is strictly forbidden to water the wintering raspberries.
Reproduction of polka occurs due to the separation of root suckers. In the second half of summer, the offspring break in, separated from the maternal root with a clod of earth and planted in a permanent place in the raspberry tree. The optimal weather for such a procedure is rainy and cloudy; on a sunny day, the seedlings should be shaded. 1 liter is poured into the prepared hole. water and put the offspring there with leaves. After about half a month, the seedlings start to grow and reach standard sizes by wintering.
Diseases and pests
It was noted above that polka is not susceptible to common "raspberry" diseasessuch as spider mites and gray mold. It is unrealistic to meet worms and other small pests, since the bushes begin to bloom and bear fruit later than the bulk of the remontant varieties. And pests are known to prefer early fruits. But is everything so cloudless?
The weak point of "Polka" is the root. The most common and dangerous disease is root cancer.
To combat it, physiologically acidic phosphorus-potassium fertilizers and gypsum are introduced into the soil.
Also, with a lack of potassium or high acidity of the soil, the bush may react with redness on the foliage... The same trend is observed with malnutrition. Usually, for the health of raspberries in this case, it is enough to fertilize the plants with wood ash before watering.
Reviews of gardeners about raspberries
Gardeners usually only speak well of polka. This is not surprising, because there is an opinion that due to the high quality of berries, resistance to diseases and pests and long-term harvest, raspberries polka was awarded the title of "Favorite of gardeners".
Experienced raspberries write: “I have been fond of growing raspberries for many years, but I still have not decided which variety is prettier to me - tall or short. I am very grateful to Polish breeders for "Polka": remontant, high-yielding, large-fruited raspberries. This tall the variety has an incredible raspberry aroma and wonderful taste. " Gardener's Notes
A family of agronomists Mikhail and Alla Molovichko share their impressions of Polka: “We have been growing raspberry varieties for a long period that bear fruit on second-year shoots in the middle of summer. And now in our raspberry bush there is a raspberry "Polka", which bears fruit on annual shoots from August until the end of the growing season. Late raspberries are not affected by pests, has large transportable berries that are highly valued in the market - they have no competitors in the fall. " Lovedacha
Many connoisseurs have already met and appreciated the polka at its true worth. After all, what is the most important thing for all summer residents? Of course, a high result at minimal cost. This variety is ideal for both commercial and personal cultivation.... Polka does not require super knowledge in care, it multiplies easily. The berries are tasty, aromatic and in demand in the market. This is the case when the result justifies the means.
Polka raspberry is a shrub 2 meters high with straight, strong stems, the thorns on which are weakly expressed. Features of the appearance and structure of the plant:
- Powerful fibrous root system.
- One seedling - up to 10 root suckers.
- The shoots are poorly expressed due to the specificity of the root system, thickening is unusual for the variety.
- The berries are large, beautiful, cone-shaped. Length about 3 cm, weight - 10-15 g. Collected in a bunch of 8-10 berries.
- The color of Polka berries is raspberry, which is why they are considered "reference".
The pulp is dense, thanks to this it is possible to transport the crop over a long distance and store for a long time.
Note! The sweet and sour delicate taste of raspberries allows you to use it fresh, use it for preserves, jams, and fillings for pies.
The fruiting period is the second half of July - the first days of August, the duration is about 90 days. The crop is obtained not only from biennial, but also from annual shoots. From one square. m receive about 3.5 kg of juicy berries.
The description of the Polka raspberry variety allows us to make sure that this is a unique plant with a high yield, a long fruiting period. In addition, the berries are the largest among the remontant varieties.
Breeding history of the variety
The raspberry variety appeared in Poland in 1993 thanks to the works of breeders from the city of Brzezno. So it got its name - Polka or in the Russian-language version - Polka. The authors of the variety have pollinated the famous raspberry Autumn Bliss with other prototypes. The result of the selection showed such enviable qualities that it soon became the most popular industrial variety in Europe.
The raspberry variety Polka gained wide popularity and distribution throughout the world after it was presented at the international exhibition "Fruit Focus" ten years after its creation.
Description of the variety
The main value is the Shelf berry. It has an exceptional presentation, rather large, on average 5-6 grams. Fruits are elongated, slightly rounded, rarely deformed. When fully ripe, the color is dark red. The sweet taste of the berry always gets positive reviews, there is an expressive fruity aroma. The seeds are small and inconspicuous. The fruits are quite firm, they tolerate storage and transportation well. In addition, there is a low percentage of waste during freezing, only about 5% of berries significantly lose their commercial qualities.
A brief description of
The crop is quite fruitful, producing an average of 9 tons per hectare. As a rule, it begins to ripen at the end of July and bears fruit until October.
Shoots The shelf is not devoid of thorns, but the thorns themselves are very small and do not cause any inconvenience. The bush grows up to 1.5-1.8 meters, under the weight of the crop it requires support. Root shoots give little, successfully propagated by root cuttings.
It is better not to thicken the planting, the variety loves the sun and air. However, in the strong sun, the berries get burned. The very first ripening fruits are especially vulnerable, since they are not covered with foliage. Later, the plant itself shelters from the sun.
This culture cannot be called unpretentious. She is difficult to tolerate drought, does not like heavy and poor soils. A good return can be obtained only with regular watering, feeding and proper care.
You can see the ripe, appetizing berry in the video:
Growers report an increased vulnerability of the cultivar to root cancer. The issue of winter hardiness is not acute, since it is not recommended to grow Polka in a two-year cycle and for the winter the shoots are mowed to the ground. For the same reason, it is rarely affected by pests.
Despite some of its capriciousness, this remontant variety has managed to become one of the most popular and demanded in Europe. In 2009, in the British Isles, he even received the title of the best grade of the year, but in Poland he is completely out of competition. But an excessively arid climate can turn this Polish beauty into a faceless mediocrity, so we advise you to always choose raspberries, taking into account the natural conditions on your site.
Raspberry polka: planting and care
The peculiarities of planting and caring for polka raspberries are of interest to those gardeners who plan to grow this plant on their site. Many people like to feast on ripe berries, and the polka variety is considered one of the most common. This plant of the raspberry family is appreciated for its benefits for the body, excellent taste and ease of care during cultivation.
Description of the variety
A description of the polka raspberry variety will allow you to understand how to properly grow a plant and take proper care of it. A garden culture of this kind was bred in 1993 by gardeners-researchers from Poland in the city of Brzezn, therefore the culture received such a "name" (Poland - polka).
Raspberry "polka" is a medium-sized remontant plant, bred through selection of other varieties. The result exceeded all expectations. The plant quickly became popular throughout Europe.
Special demand has been observed since 2003, when the garden culture was presented at the international agricultural exhibition "Fruit Focus".
It is important! One of the striking features of the "polka" - the berries ripen, even if the temperature outside is from 0 to -2 degrees Celsius. Few horticultural crops can boast of this.
The plant has a high yield compared to other raspberry varieties. Researchers carried out tests, which found that on average from one annual shoot "polka" can be harvested about 4 kilograms of berries. Garden culture bears fruit from the end of July until the first frost, inclusive.
By the way, raspberries yield twice a year. Last year's shoots, if not dug out, also yield a crop at the very beginning of summer. Annuals begin to harvest from the end of July.
As a result, you can enjoy delicious and healthy berries from early summer to late autumn.
But remember that double yields are too much stress on the plant, so when growing polka on an industrial scale, it is better to only deal with annual shoots, that is, plant it annually.
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Raspberry "polka" differs from horticultural crops of other varieties in the following advantages:
- high yield (up to 12 tons can be harvested from one hectare of raspberries)
- berries of an ideal shape and large size (polka is considered the best dessert variety)
- firmness of berries (they are perfectly preserved on the bushes, do not rot, which happens with berries of other varieties)
- a significant period of fruiting (especially with good feeding)
- the possibility of using in conservation (berries are suitable for making juices, jellies, fruit drinks, preserves, jam)
- ease of transportation, the possibility of dry separation (berries retain their appearance even after freezing)
- resistance to the most common diseases in raspberries (viral, fungal)
- lack of thorns (meaning large and pronounced)
- high profitability (polka has no so-called serious competitors during fruiting).
Despite the variety of advantages, the plant also has some disadvantages. In particular, the garden culture is not resistant to severe frosts (below -10 degrees), that is, it must be covered and cut at the root for the wintering period.
Elevated temperatures are also poorly tolerated by "polka", so it is important to shade the plant at temperatures above 35 degrees Celsius, as well as water in a timely manner. Root system diseases (especially rot and root cancer) are typical for raspberries of this variety.
Remember that raspberries need an abundant supply of potassium and nitrogen to accelerate shoot formation.
Planting a garden culture
The quality of the harvest depends on how correctly the planting of such a garden culture as the "polka" raspberry was carried out at home. Plant care begins either in April, or from the end of September and the beginning of October, when the garden culture is planted.
It is necessary to give preference to such raspberry seedlings, which have two or three shoots. Moreover, there should be no cracks or spots on them.
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The most favorable soil for "polka" is considered to be light or medium loam. Excellent natural light has a positive effect on the plant. Experts recommend planting seedlings along buildings or fences.
Planting raspberries "polka" should be performed in accordance with the following algorithm:
- Dig holes for raspberries, the parameters of which are about 0.4 meters in diameter and 0.5 meters deep. Moreover, this procedure must be performed at least two weeks before planting the seedlings.
- Leave a distance of 0.5-1 meter between the pits, and about 2 meters between the rows.
- The prepared grooves should be covered with fertilizer. It is prepared from manure, potassium sulfate and superphosphate. It is advisable to use about 20 kilograms of manure, 70 grams of superphosphate and 50 grams of potassium sulfate for one meter of the plot.
- Two weeks after digging the hole, a polka seedling is placed in the recess. In this case, it is imperative to straighten the root system, but act carefully. Remember that the replacement kidney is positioned so that it is about five centimeters from the ground.
- Holding the seedling in an upright position, you need to sprinkle the hole with soil, and then slightly trample down so that the plant stands stable.
- Further, one bucket of water is poured under each planted raspberry bush.
- It is advisable to additionally mulch the soil with peat or straw.
Keep in mind that after planting, the height of the seedlings above the ground should be approximately 0.4 meters.
Features of caring for raspberries "polka"
It is very important to know not only how to properly plant the polka raspberries, but also how to provide proper care, which is the key to the abundant yield of the plant. In principle, the maintenance procedure is standard and involves pruning, loosening, watering and feeding.
Pruning is done in November if one crop is planned. In this case, the branches must be removed at the root.
If there is a need to harvest twice a year, then pruning is done both in spring and autumn.
In this case, you need to remove those branches on which the berries were located, and you should also get rid of damaged and dry stems. Keep in mind that old shoots will begin to bear fruit by summer, and young ones by autumn.
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It is very important for the "polka" to provide timely soil moisture. Raspberries must be watered during flowering and ripening of berries. Also, as needed, it is necessary to carry out subwinter watering if the autumn was with low rainfall. For each bush, about three buckets of water are needed to ensure the soil is moistened up to 0.4 meters in depth.
It is very important to carry out loosening of the soil in a timely manner. This allows for excellent air and moisture penetration into the soil. At the beginning of the flowering plant, loosening should be done to a depth of about seven centimeters. Then repeat the procedure at least five to six times during the year.
Additionally, you can use fertilizers that have a positive effect on the growth and yield of the polka. The first feeding is introduced before the beginning of the growing season of the plant, that is, in early spring. It is best to use organic fertilizer, diluting it in a ratio of 1 to 10 liters of water.
In the summer, feeding should be done once a month. The most suitable options are ready-made formulations of complex action. They usually contain potassium salt, ammonium nitrate, superphosphate.
In autumn, it is necessary to introduce an organic fertilizer one-time on the basis that at least five kilograms of feeding is needed per square meter.
In general, planting and caring for polka raspberries is easy. It is enough to adhere to elementary recommendations for the plant to please with a bountiful harvest. Many gardeners choose raspberries based on reviews from other growers. And they are not disappointed in their choice. Raspberry "polka" pleases with its yield and ease of care, its cultivation is not difficult.
To learn a little more about the raspberry polka, you can watch the suggested video.
Raspberry Polka: description and cultivation of large-fruited berries
It is difficult to find a summer resident on whose site tasty and aromatic raspberries would not grow. Together with currants, strawberries and other useful plants, it takes pride of place in almost any garden. Today there are more than 120 different plant varieties, but most people are only interested in large-fruited shrubs with large and bright berries. These are the varieties of raspberries "Polka" (or "Shelf"), which will be discussed below.
Repaired raspberry Polka: characteristics, description of the variety and berries, yield, photos, reviews
Everyone knows the amazing taste of raspberries from childhood. Many are looking forward to summer to feast on this sweet berry. Besides the fact that raspberries have an exceptionally pleasant aroma and taste, they also benefit the human body.
Due to the presence of a large amount of vitamins and minerals, raspberries become indispensable for winter avitaminosis and acute respiratory infections. Of particular interest to gardeners are the remontant varieties of this plant, which bear fruit throughout the warm season.
One of these varieties, called Polka, will be discussed below.
Characteristics of the large-fruited remontant raspberry Polka
Raspberry Polka was bred in Poland over 30 years ago by a breeder named Jan Danek. After the 2003 international agricultural exhibition, it successfully took root all over Europe. At the moment, this variety is the leader of Poland's planting stock in terms of exports. In European countries, the remontant polka is considered the most demanded for cultivation.
Appearance, size and type of berries, yield
Polka bushes grow up to 1.5 m in height. There are few thorns and they do not interfere with caring for the shrub. White inflorescences are located at the tops of the branches and near the leaves. Drupes ripen large, up to 3 cm, weighing up to 7 g.
They have a regular conical shape, reminiscent of a thimble. There are up to 10 bunches of bright scarlet berries with a rich raspberry flavor and aroma.
Among gardeners, it is believed that the fruits of this variety have an optimal balance of sour and sweet tastes.
Polka is the best dessert raspberry variety in Europe. Begins to bear fruit in the first year after planting. Up to 4 kg of raspberries can be harvested from a bush, which is a high yield indicator.
The variety can yield twice a season.
For commercial purposes, it is recommended to give preference to one main crop, which ripens even when the bulk of the berries in the orchards have been harvested for a long time (July-October).
Advantages and disadvantages of the variety
- The main advantages of this variety:
- perfect taste
- high yield
- long fruiting period (3 months)
- berries remain dry when removed
- high keeping quality and transportability of raspberries (up to 10 days)
- few thorns on branches, small thorns
- resistance to most viruses and fungi
- the versatility of the use of the crop (it lends itself well to freezing, can be canned, made fruit drinks and jelly).
- The description of the disadvantages is as follows:
- low frost resistance (requires insulation and pruning for the winter)
- poorly tolerates drought and heat (at + 35 ° C, it is necessary to create an artificial shade for the plant and organize drip irrigation)
- requires frequent feeding
- there are frequent diseases of the root system (cancer and rot).
For the effective cultivation of raspberries, it is necessary to follow the rules of agricultural technology for a particular variety. This will help avoid common mistakes in planting, tending and harvesting. Proper pruning and preparation for winter will allow you to feast on berries for more than one season.
Video: Repaired Raspberry Polka
For planting cuttings, you should choose a well-lit place. If the terrain is southern, then a diffused shadow is needed. The soil is not decisive for the development of the plant. Polka bears fruit well on any type of soil... However, if there is a choice, then slightly acidic or neutral soil fertilized with compost is preferable (2 buckets per planting pit).
The quality of the soil is not as important in this case as the correct feeding and fertilization. Before planting for 45 days, the site is sprinkled with a mixture of manure, superphosphate and potassium sulfate (20 kg / 70 g / 50 g). Bearing in mind the tendency of raspberries to decay roots, you should not choose areas with closely lying groundwater.
Planting and leaving
Seedlings should be purchased from trusted suppliers. It is best if the root system of the seedling is in a container with soil. If the roots are open, you need to check their appearance so that there are no signs of rot and other lesions, neoplasms, cracks.
In this way you need to inspect not only the roots, but also the entire seedling... Its height should be at least 40 cm, thickness - more than 8 mm. At the base of the shoots there should be 3 buds, from which fruitful branches will subsequently grow.
Raspberries are planted either before the beginning of the growing season, or after its end (in spring or late autumn.)
Learn more about planting raspberries in the fall.
Landing is carried out as follows:
- The planting hole is dug out half a month before the rooting of the plant (diameter - 40 cm, depth - 50 cm).
- Maintain the distance between holes in one row 50–70 cm, between planting lines - 120–150 cm.
- 2 buckets of compost are added to the hole.
- Carefully distribute the seedling rhizome in the hole, place the plant horizontally and sprinkle it with soil (the root collar should be 3 cm above the ground).
- The soil is lightly tamped and a recess is made for irrigation.
- Water the seedling with one bucket of water.
- After absorbing water, mulch the hole with straw or peat.
- Cut off the top of the plant at the root (it will give shoots that will bear fruit in the same year).
For full care, raspberries must be weeded, watered, fed and tied up.
Weeding involves removing the weeds around the raspberry bush. This is done with a hoe at a time when the weeds have not yet reached an impressive size.
This manipulation provides additional loosening and aeration of the soil. By removing weeds, the cause of many fungal, bacterial and parasitic diseases is also eliminated.
Weeding is best done after absorbing moisture during watering.
about the advantages and disadvantages of raspberry transplant.
Watering Polka must be done regularly from the beginning of the movement of juices until winter pruning. All 3 months of fruiting, it is necessary to monitor the moisture content of the soil.
In order to determine the time of watering, a recess is pulled out near the roots of the bush to a depth of 20 cm, while the ground should be slightly damp. In the heat, it is obligatory to water 10 liters of water for each plant weekly.
Before the end of the growing season, abundant watering is carried out in preparation for wintering. Pour 20-30 liters of water under each raspberry bush.
Top dressing is applied three times per season:
- With the arrival of spring, before the beginning of the growing season, scatter urea (30 g per 1 m²). This is done on top of the remaining snow.
- During the swelling of the buds, the bushes are fertilized with a mixture of humus (1.5 kg), potassium salt (3 g), nitrogen (3 g) and phosphorus (2 g) fertilizers.
- After pruning the shoots for the winter, 1 bucket of humus, nitrogen and phosphorus fertilizers are applied under each plant.
The garter is made in order to protect whole branches with fruits. In strong wind or rain, the bushes break and bend to the soil, the fruits get wet and dirty. To avoid this, branches are tied to a special design - a trellis... In this form, it is much more convenient to collect raspberries.
Disease and pest control
The life cycles of most pests do not correlate with the cycles of remontant raspberries, since they mature later than the larvae of the parasites awaken. In addition, pruning for the winter under the root, harvesting of branches and leaves, digging up the earth and spraying it with copper sulfate, which quite helps to avoid damage by harmful insects, are carried out.
The only exception is aphids... It infects the plant and sucks out its juices. To destroy aphids, Polka bushes are treated with a solution of the biological product "Aktofit". After processing, the berries are edible after two days. They are attracted to raspberries and ladybirds (natural enemies of aphids), planting calendula and herbs with a spicy smell nearby.
Polka is not susceptible to most types of diseases, but some of them can still affect the plant:
- Root cancer - characterized by the appearance of ugly growths on the roots of the bush, yellowing of the leaves and a spoiled taste of the fruit. It is impossible to cure a plant from this disease. It is only possible to warn it by treating the roots with copper sulfate before planting (100 g per 10 liters of water).
- Verticillary wilting - an incurable fungal disease. The plant withers and dies. A characteristic feature is the situation when half of the bush is green and half is yellow. With such a disease, the bush must be dug up and burned. On this site, it is possible to subsequently grow only plants that are resistant to verticillary wilt.
- Anthracnose - fungal disease. Purple spots are formed on the leaves and branches, later they turn gray with a burgundy border. The leaves become dry and fall off. To prevent anthracnose, the plant is sprayed with a 3% solution of Bordeaux liquid before the start of the growing season.During the formation of buds and after harvest, the raspberries should be sprayed with a 1% solution of Bordeaux liquid. Trunk circles must be regularly dug up and loosened.
Although Polka is not a very tall plant, its branches often bend under the weight of large berries, of which there can be up to 10 in a cluster.
So that the bushes do not bend or break, as well as for uniform sunlight on the berries and the convenience of harvesting, raspberry branches are tied to trellises - special devices for securing branches, which are vertical columns with a horizontally reinforced wire or rope stretched between them.
Tapestries are of two types:
- Single-lane - when a row of columns and crossbeams is installed on one side of the plants (optimally at a distance of 30–40 cm from the bush) and branches are tied to them at an angle of approximately 15 °. Such a trellis is preferable for small plantings.
- Two-way - the trellis is installed on both sides of the row with raspberry bushes. The branches are tied alternately in one direction or the other, which allows them to be evenly distributed.
There are two main ways to breed raspberries:
- From the center of a two- or three-year-old bush, root suckers with a diameter of about 20 cm are dug.This is done in spring or autumn. The dug out part of the bush takes root in a new place. The remaining plant for the season is capable of giving up to 20 such offspring.
- Green cuttings are taken from annual shoots in May. Slices must be treated with charcoal to avoid infections. The stalk is placed in a nutritious light soil mixture, and a month later, along with a lump of earth, is planted on the site.
Features of spring and winter pruning
The nature of the polka's pruning determines when and what kind of harvest it will give in the next season:
- If there is a desire to get the crop 2 times (the first in July, the second at the end of August), then pruning is done twice. The first time in the spring (in April), this pruning is rather sanitary and is possible only if the bush was not pruned for the winter. The second time in the fall, before the frost, the green shoots on which there were berries, as well as damaged shoots, are harvested. Leave the annual branches and those on which the summer harvest is formed. No more than 5-7 of the strongest branches are left for the winter.
- If the harvest is planned to be obtained once from the end of July to the end of September, then for the winter the bush is simply cut off at the root. This is also the prevention of raspberry diseases. The next spring, fresh shoots will go from the root, which will give a bountiful harvest.
Polka must be prepared for wintering. To do this, cut off, remove fallen leaves and cut branches, fertilize, loosen the soil, water it abundantly and mulch the soil in the near-trunk circle with sawdust or straw.
Important! Among gardeners, it is believed that raspberries of the Polka variety are better to bear fruit once, because with double fruiting, the second crop has every chance of not ripening before the frost begins. In addition, two harvests deplete the plant, and the berries become small and dry.
If uncut branches are left for the winter, then they are worth bend and lay on the ground along with the trellis... Then you should cover them with agrofibre in two layers.
Harvesting and transportation
Raspberry drupes Polka ripen in the first half of August, and fruiting itself can last until frost. It is recommended to pick berries in dry weather (preferably in the morning). It is advisable to put raspberries in wide containers or boxes with a layer of no more than 15 cm. Polka perfectly tolerates transportation.
Important! Until the berries have cooled completely, the container is not closed with a lid, since the resulting condensation will lead to wetting and deterioration of the product.
For a longer storage of fresh berries, they must be placed in the refrigerator. The berries need to be sorted out from garbage, the stalks must be removed, put into food containers and refrigerated. In this form, raspberries can be stored for 7-10 days.
Raspberry is an extremely useful berry for the human body. It promotes recovery from colds, rejuvenates the skin, and is an antidepressant.
Many gardeners mistakenly believe that this plant does not require any maintenance at all, and as a result, they complain about chopping berries and shrub diseases.
With careful care and adherence to the rules of planting, pruning and reproduction, Polka raspberries will bear fruit for more than 3 months with large berries with a unique taste and aroma.
Feedback from netizens
In August, my children ate the first berries with pleasure. Large, smooth, shiny, sweet. But in September she became smaller, became sour, the children turned away from her. Maybe a lack of sun, maybe cold nights, in general, I'm still in search of a repair raspberry ...
This is, of course, in my conditions. Grows behind the house on the east side.