Peach variety overview: Varieties resistant to ruffling disease


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Peach variety overview: Varieties resistant to ruffling disease: peach

Unlike his species name 'persica' suggests, the peach originates from China and Tibet. There he has been cultivated for several thousand years and finally arrived in ancient times via Persia to Greece and Rome. Finally, the ancient Romans brought the heat-loving peach to Central Europe, where it flourishes well above all in the winegrowing regions. Some modern breeds can also be cultivated in rougher locations such as those found more frequently in northern Germany. However, a big problem is the ruffling disease that affects almost all peaches. There is no pear-resistant peach, but some varieties are less susceptible than others.

Cause and damage picture of the ruffling disease

The dreaded ruffling disease is caused by the tubule fungus Taphrina deformans, which prefers to nest during the wet winter months in the leaf and flower buds of peach, nectarine and apricot. The actual infection finally occurs in spring, especially in damp weather: the leaves curl strongly (and are easily confused with aphid infestation at this stage), are distended in a bubble and turn whitish green to red. Finally, the infected leaves dry up and are discarded. In case of heavy infestation, the tree also repels the fruits.

Untreated curling disease has serious consequences

If the ragweed disease remains untreated, not only does this year's harvest suffer from it. As the fungus hibernates on the tree each year, the disease recurs every year and over time causes crippled shoot growth. The peach tree experiences a strong weakening, which does not only affect the growth. Due to the lack of photosynthesis (which is no longer possible to the extent required by the diseased leaves) and the strong concentration of the diseased tree on getting rid of the enemy, more pathogens can creep in and eventually even kill the peach.

Combat cramp disease only possible in early spring

The treatment of ruffling disease is not easy, because you can only combat it by spraying certain crop protection products. However, these must be applied exactly at the time of bud swelling; on the other hand, if the buds start breaking, it is too late for this season. Therefore, you should check the tree regularly from the end of January in appropriate weather and apply the fungicide as soon as the bud scales loose. In general, however, this is only the case in early March. Afterwards, the spraying should be repeated once or twice depending on the temperature and weather conditions, as a new infection is possible after every new temperature drop. There are a number of organic-approved funds for the private garden. Which is best, you can ask in the shop. If possible, it is sprayed in mild but damp weather.
Tip: It is quite difficult to get the timing right. However, you can try the following trick: spray some buds with color in December / January. If these burst as a result of the bud swelling, you can inject the peach.

To prevent the ruffling disease

Peach tree - Prunus persica - blossom

It is better to prevent an outbreak of the disease by taking appropriate measures. These include the following measures:
  • preventative spraying of a fungicide in spring
  • Sprinkle peach tree regularly with fortifying Horsetail
  • suitable location choice
  • avoid damp leaves (eg through roofing, rain-protected location)
  • Keep treetop light to promote quick drying
  • Planting a peach variety resistant to the ragweed disease
In addition, you can plant the peach tree with garlic or nasturtium, as both plants should provide some protection against the fungi.

Tip: Horsetail manure is produced as follows: Collect about one kilogram of horsetail (Equisetum arvense) and mince it. Pour the plant parts with 10 liters of hot (but no more boiling!) Water and stir well. Leave the mixture in a warm and dark place for about a week, stirring vigorously once a day. After one week you can strain the brew and spray the remedy, mixed with water in the ratio 1:10. Field horsetail (Equisetum arvense) contains flavonoids, phytosterols, tannins, saponins, alkaloids, essential oils and many minerals and trace elements.

Choice of suitable location

However, the best prevention against the crusting disease is the right choice of location. The peach loves a warm, sunny and sheltered location all year round.Even the winters should not be too cold, otherwise the wood will be damaged. The early flowering of many varieties is endangered by late frosts. Peaches thrive in wine-growing regions, but under certain conditions can also be planted in cooler areas. In this case, you choose a very sheltered location, for example, on a house wall - here, the peach can educate as a pretty trellis. The soil should be loose, well drained and warm. On lighter, but lime-poor soils, peaches thrive very well. On the other hand, completely unsuitable are wet and cold soils. Here, the peach soon suffers from rubber flow. Such unsatisfactory locations as well as too much lime in the soil often result in chlorosis; the leaves then look morbid yellow and are quickly thrown off.

Reduce ruffling disease by choosing the right variety

Peach tree - Prunus persica

Even if some traders claim the opposite: So far there are no peach varieties that are resistant to ragweed. Instead, you can choose more robust varieties that are less sensitive than others to, but not completely free from, this disease. These peaches need the appropriate preventive measures, also depends on a possible infestation of both the specific weather and the location. In general white flesh species are less sensitive than yellow flesh - popular, very aromatic peaches like 'Fairhaven', 'Red Haven' or 'South Haven' are unfortunately very vulnerable.

Resistant peach varieties for the garden

'Bero'
This is a little-known, white-fleshed, early-ripening peach with very juicy, moderately sweet fruits. It is a high-yielding peach with good fruit quality, which is not very demanding in terms of location. Both the flowers and the wood are considered surprisingly frost hardy, the tree itself as very resistant to the ruffling disease. The variety was bred in the fruit experimental station Radebeul near Dresden and has been on the market since 1970.
'Pilot'
This white-fleshed peach variety also comes from the fruit testing station Radebeul and has been on the market since 1971. It is a vigorous and healthy variety, which provides a rich yield of very juicy, sweet-sour tasting and aromatic fruits. 'Pilot' is considered to be resistant to ragweed, but needs a location suitable for peaches as well as quite intensive care.
'Benedicte'
The large, white-fleshed and juicy fruits of the variety 'Benedicte' mature until the end of August and are very well suited as both table fruit and canning. The tree is strong and healthy, even more resistant to ruffling than the better known 'Revita'.
'Amsden'
This very old strain, already recognized by the American Pomological Society in 1877, has proved very successful: The tree is vigorous, very robust against all sorts of diseases - including the dreaded ragweed disease - and provides a rich yield of white-fleshed, very tasty peaches. These mature early, but remain relatively small.
'Revita'
This peach is a relatively new variety for the home garden, whose large and white-fleshed fruits ripen between mid and late August. The tree is very resistant to the ruffling disease, but needs a good location and intensive care. In addition, 'Revita' tends to put a lot of fruit on it, which, if you do not make it on time, stay very small and mature late. With sufficient sun, this variety tastes very sweet and aromatic and provides excellent table peaches.
'Kernechter vom Vorgebirge' (also 'Roter Ellerst├Ądter')
The 'Vorgebirgspfirsich', also known as 'Kernechter vom Vorgebirge' and primarily in the Rhine Valley between Basel and Bonn as 'Roter Ellerst├Ądter', is relatively resistant not only to the cramp disease, but also to mildew and Monilia. It is a weissfleischige, very high-yielding variety with rather moderately sweet-tasting, but highly aromatic fruits. Due to the low sweetness of the typical peach taste is not very pronounced, instead, the variety is especially suitable as a canned fruit. The 'foothill peach' needs a good peach location, which allows even in September still the maturation of wood and fruit.
'Red vineyard peach'
The vineyard peach is a robust variety with rather small fruits whose white pulp is mostly red. They taste very fragrant, but rather tart and less sweet. Therefore, they are rather less than dessert fruit, but rather for awakening, for jam or other forms of processing suitable (for example for the production of fruit brandy).
'Earlier Alexander'
This variety, also from the USA, already delivers between the end of July and the beginning of August small to medium-sized, white-fleshed, very juicy and sweet fruits with firm pulp.The tree is good frost hardy and quite resistant to the curling disease.
'Record of Alfter'
This strong and healthy growing peach produces slightly yellow-fleshed, very juicy and big fruits that ripen between mid and late August. The old variety is considered quite resistant to various diseases, including the curling disease, as well as frost hardy in the wood.
'Fidelia'
This new breed captivates by several pluses. Not only is the strain very resistant to ruffling, it is also generally very robust. Their flower buds and flowers are only slightly susceptible to late winter frost. The large, bright red and white-fleshy fruits ripen between the beginning and the middle of August. They taste sweet with a very pleasant aroma.

Nectarines and flat peaches are also sensitive to the ruffling disease

Peach tree - Prunus persica

Both the flat or plate peach and the nectarine are variety game species of the peach and as such also quite vulnerable to the crusting disease. The flat peach, which has been gaining in popularity for some time now, is also not a cross between plum and peach, as is sometimes claimed. Nectarines, on the other hand, come from peaches' bud mutations and look very similar to them, but they have a smooth, hairless and usually bright red peel. Nectarines, like the peach, need a warm, sunny and well protected against late frost. They are considered more demanding than the peach and are very susceptible to various diseases. Above all, the US-derived varieties 'Snowqueen', 'Independence' and 'Flavourtop' have proven their worth. The quite new variety 'nectarose', on the other hand, is an uncomplicated, rather frost-hardy nectarine, which is comparatively less susceptible to ruffling. Their fruits have a white-green pulp and are covered with a red skin.
Conclusion
Peaches are very heat-loving fruit trees that thrive best in vineyards. But even in climatically less favorable regions, the cultivation can succeed if the planting takes place in a protected location. In addition to frost, rain and lack of sunshine, however, the dreaded ruffling disease can be a problem that affects almost all peaches. There is no completely resistant variety, only some more resistant. Basically, white-fleshed peaches are less sensitive than yellow-fleshed. The disease can only be prevented by preventive measures such as a wise choice of location and variety as well as a good nursing care.

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