Mildew on roses and other colors

Mildew on roses and other colors

Do you like housekeeping and take care of them? A big hobby, only sooner or later most of the flower breeders have to face a major problem – their favorites begin to hurt. At the same time, this applies to both inner plants (geraniums, calanchoe, orchids) and garden colors (roses, begonia, hydrangeas, tanners, violets, other species).

Most often, the owners complain about whitish spots that appear on plant leaves (photo). Some gardeners even try to wash them away and think that their bush or flower pot was simply littered. In fact, everything is much worse – their flowers have gone through a serious illness that is known as mildew.

The disease got its name from white spots, with which it manifests herself on leaves and buds. The mildew spreads very quickly, it can consider the development of the rose or another flower bush considerably or even destroy it completely.

The causal means of the disease is the muptic pathogenic fungi of Sphaerothecaranosa, the spores of which are easily tolerated from one plant to the other. A characteristic feature of this parasite is his frost resistance – spores in the fallen leaves, in the bark of the bark and in the upper ball of the floor on the street.

If you do not take any measures, the leaves begin yellow, turn, dry and fall shortly after the occurrence of white divorces. The rose or other flowers weaken, the parasite influences the branches and stems, in the end the plant dies. However, events can develop according to a different scenario if they pay attention to preventive measures and the treatment of mildew.

Prevention of mildew in a rose, a garden and in the interiors

  • To plant plants, choose landplots that are not infected with mildew. If there is no such option, spill the floor with boiling water in the early spring.
  • For the plant, choose the causal means of mild varieties, petunia, hydrangeas, violets, phloxen, other colors;
  • Remove the leaves of the last year under the bushes, the ability to change the upper floor of the floor (approx. 5 centimeters) or to release it with a solution of calcium perming.
  • Plant the bushes on sunny, wel l-loaded areas;
  • If you don’t thicken the flower bushes when landing – you should be well ventilated;
  • It is not worth neglecting the recommendation of roses, hydrangeas, violets, petunia, phloxen and other colors in the morning, and then only dry after the upper floor of the floor in the location or in the pot;
  • Apply fertilizers in quantities that are recommended by scientists and experienced gardeners. Remember – an excess of nitrogen and the lack of phosphorus and potassium produce the appearance of mildew;
  • Avoid feeding systems with a concentrated solution from chickener – this can cause mildew’s appearance for colors.

Varieties of roses that are resistant to mildew

Hot chocolate. The birthplace of the variety is New Zealand, it differs in orang e-brown flowers with white spots on the petals. Plants of this variety prefer soil with average acid and sufficient humidity. According to amateur gardeners, hot chocolate shows excellent resistance to various types of fungal diseases, including mildew.

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crocus rose. The strain was bred in the UK in 2000. He won not only because of his beautiful colors, but also good frost resistance and excellent immunity to various fungal diseases. Carrying out the minimum necessary preventive work, it practically does not become exposed to infection with spores of powdery mildew.

Rose Hot Cocoa Hot Chocolate Rosa D. Austin ‘Crocus Rose’

Hall. This variety has been known since 2002, flowers have a bright red color. According to the authors of the Halle variety, their idea is not susceptible to fungal diseases and never suffers from powdery mildew.

Aphrodite Che. Hybrid grade tea is adapted for growth on the middle lane, perfectly tolerates moisture and is characterized by a pungent aroma. Aphrodite by CG is excellent for greenhouse growth. After cutting, the flowers retain freshness for a long time. The variety extremely rarely suffered from powdery mildew and resistant to other fungal diseases.

Indoor violets that are resistant to powder diseases

Arctur. A large flower with white edges flowing to red colors in the center. The bush has quite large sizes, growing up to 40 centimeters. Arctur has a long flowering period (up to two months), is afraid of bright lighting (in the summer it is necessary to shade), practically not under powdery mildew.

Violet arctúrus violet great fire

big fire It differs in large flowers from 5 to 8 centimeters, each of which blooms for two to three weeks. The variety is quite difficult for growth, but with proper care, it is practically not susceptible to fungal diseases.

Ek Gulliver. Large (up to 7 centimeters) beautiful flower. The bush differs in that it almost always blooms, as it tends to lay new flowers.

Floka varieties resistant to powdery mildew

Ural stories. The variety has been known since 1953 and was distinguished by a rather large height (up to 90 centimeters) and dark pink color. The root system is perennial, in one place it can grow up to 5 years and do not be surprised by the powdery mildew and other characteristic diseases.

King Chanson. If you see huge diameters of up to 28 centimeters, flower pyramids of phlox, most likely, the king of chanson is in front of you. The bush has a height of up to 90 cm, tolerates frosts well and is resistant to diseases.

Galatea. One of the most beautiful flowers in your garden. It has a delicate body pink color, it is very unpretentious and easy to grow. Resistant to powdery mildew and other fungal diseases.

Flox King from Chanson Phlox Blizzard “Ural Tales”

Orchids resistant to powdery mildew

manil shape. A very unpretentious variety, the plant does not require special care, it perfectly tolerates fluctuations in ambient temperature. The flower reaches 20 centimeters in height, has a white-pink color and a pleasant smell. Plants of this variety showed excellent resistance to anti-tillage pathogens.

Pruning grapes in the middle belt

aciscredad. Another resistance to powdery mildew and some other diseases. It differs in large foliage (up to 15 centimeters), a line, two or mottled inflorescences.

The Manil Form of Orchid s-Aciscredad

Folk remedies for treating powdery mildew on flowers

Prevention and treatment of fungal diseases, which include powdery mildew, can be carried out both by chemicals and by various folk remedies. In most cases, traditional methods give good results. In addition, they differ in their cheapness and safety for people, animals and bees.

Solution based on mustard powder. It serves to prevent the disease, can destroy powdery mildew fungi, but does not fight their spores. We draw attention to the environmental friendliness of the product, it is not dangerous for bees and can be used when spraying petunias, roses, gerberas, begonias, violets and other plants. Heat a bucket of water to a temperature of 50-60 C, add two tablespoons of mustard powder and dissolve in water. The solution can be used as a spray. The same goes for watering flowers.

copper solution. One of the most effective folk remedies. The solution is prepared on the basis of water (3 liters) and 5 grams of copper sulfate. In another container, mix 5 liters of water and 50 grams of soap. Slowly pour the vitriol solution into the soapy water. Spray the flowers three times (each after 8-10 days) with the resulting product.

sour milk solution. We mix five liters of water and five liters of regular whey and our product is ready. However, flowers can only be sprayed on a dry, warm day, the product is for the prevention of powdery mildew, not its treatment. The effect sets in after three treatments, which are carried out two to three days apart.

iodine solution. A remedy that is quite easy to prepare: add one drop of iodine to five liters of water. However, it should be borne in mind that such a solution is used for watering plants, and not for spraying, and is more prophylactic than therapeutic.

chemical preparations for treatment

Bravo. Fungicide with immediate effect, resistant to washing off with water, protects the plant for 8-10 days. The disadvantages of the chemical include its relatively high toxicity to humans, in addition, Bravo is dangerous to bees on the first day after spraying.

Angle. Another drug from the group of fungicides. It has a wide spectrum of protection, capable of destroying both the fungus itself and its spores. The pesticide can move acropetally (droplets of the solution can climb up the flower) and penetrate all parts of the plant. The protective effect occurs 30 minutes after spraying with Rakurs.

AcrobatMC. The drug comes from the world-renowned Swiss manufacturer of crop protection products, BASF. Acrobat MC has proven itself in the fight against both powdery mildew and peronosporosis. The drug not only effectively kills fungi and their spores, but also prevents the formation of new spores, in addition, it has low toxicity to humans, birds and bees.

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previcur. The drug is used to stimulate plant growth, prevent and treat powdery mildew and peronosporosis.

Preparation “Acrobat MS” preparation “Bravo” preparation “Racurs” fungicide Previkur

Pros and cons of using fungicides


  • As a rule, the effect of the remedy begins a few hours after treating the plant;
  • Fungicides are not only effective against fungi that cause powdery mildew, they also destroy their spores;
  • Some drugs have not only protective, but also stimulating properties.


  • Most products belong to the second toxicity group, which indicates their danger to humans, animals and bees;
  • Personal protective equipment must be worn when working with fungicides.

Getting rid of powdery mildew on flowers: video review

We combat powdery mildew on indoor flowers:

We treat violets against powdery mildew:

Treatment of rose bushes from powdery mildew:

Treatment and prevention of powdery mildew – reviews of gardeners

Anna Menshova, 58 years old, Kursk region:

I love room flowers. The apartment is full of violets, orchids, geraniums, calanchoe. I have never dealt with real mildew because I regularly prevent. In autumn I spout the floor with a potassium perhanging solution, remove constantly fallen leaves and branches, do not exaggerate it with the watering and only pour in the morning. I process the plants myself with onion shell infusion.

Lyudmila Ivanova, 47 years, Pskow region:

The Datsha is full of flowers, berry bushes and others green, and my husband also has several beehives. It is the latter fact that makes it difficult to combat the manifestations of the real mildew: chemistry cannot be used, and I have not found any effective folk remedies that can not only kill mushrooms but also their spores. It is therefore necessary to carry out a whole range of preventive measures, including spraying with a copper sulfate solution. I do the processing three or four times and watch all the time whether white spots have formed somewhere. I want to spray something radical, but my husband doesn’t allow it.

Advantages of folk remedies: price, no n-toxic to humans, bees and birds;

Disadvantages: Low effectiveness in the fight against real flour outputs.

Real mildew is under control! Which plants are particularly susceptible to this disease?

Real mildew does not need an introduction. Gardeners and gardeners know this disease firs t-hand: it affects many plants. Regardless of geography, it marches through summer houses and adds irreparable damage to vegetable cultures, fruit trees, berry shrubs and ornamental plants.

Pulling dew can cause many problems in the garden and in the garden

Real mildew can cause a lot of trouble in the garden and vegetable garden.

Real mildew to get rid of once and for all is impossible: pathogens hibernate on infected shoots, in buds, on plant remains; Phytopathogenic conidia (spores of asexual reproduction) are worn by the wind over considerable distances. But it is possible and necessary to effectively resist the real mildew, because the problem will not disappear on its own.

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Real mildew: Which plants are particularly susceptible to

The first step towards victory in the fight against this forced disease is to identify the weakest points in defense. We speak of plants that are particularly susceptible to real mildew, they are primarily affected and are actually becoming breeding grounds and breeding grounds for its spores. You have to carry out special surveillance: comply with the agricultural engineering of care strictly, start regularly with regular preventive treatments and constantly carry out a visual inspection in order to identify the herd of illness.

Green harvest

With every dacha there is probably a vegetable garden or a small garden bed with a lot of green. The first harvest is particularly tasty, but sometimes the real mildew spoils everything: cool, dry weather is the optimal conditions for its development.

Donners Landungen - Wide for mildew in powder

Thickened plantings – width for real mildew

If the infection chain is not interrupted from the start, the disease will seriously roam. Many green plants are at risk: celery, cumin, coriander, parsley, fennel, dill. And this is not a full list, it can be continued. The powde r-shaped coating can be easily washed out under running water, but the greenery is hardly suitable for food: the influence of the disease disappears taste and aroma, for which it is actually grown.


Some gardeners believe naive that real mildew tomatoes do not threaten because the first, most dangerous outbreak of the disease occurs in spring when no seedlings have yet been planted.

It is important not to miss the occurrence of the disease

It is important not to miss the outbreak of the disease

A flawed point of view that can deprive the weighty part of the harvest! The probability of infection of powdery mildew is relevant throughout the season, while weather conditions are favorable for the development of phytopathogens. It is worth that the tomato leaves are covered with a white coating. Wait for outbreaks of the disease on other plants.


If you find the powdery dew on a tomato, then cucumbers (and other representatives of the pumpkin family) are also in danger, since in both cases the cause of the disease can be the same – the Hebela Taurica. However, from the pathogen fungi to squash hunting and others, healthy tomatoes are no guarantee that nothing threatens cucumbers. In addition, it does not matter where they grow, in open ground or in a greenhouse: powdery mildew is ubiquitous, it can appear even on balcony and indoor copies!

With damage to mildew, entire eyelashes can dry out in cucumbers

With damage from powdery mildew, entire lashes in cucumbers can dry out

Usually in summer cottages there are many plants of the family, pumpkin, but cucumbers and melons are especially susceptible to powdery mildew, which need to be carefully careful. It is worth noting that the first signs of a white plaque on their leaves are prepared – be ready to process all members of the family without exception.

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Vulse is very susceptible to powdery mildew. So much so that many summer residents, desperate to heal for medicinal plants, generally refused to breed goosebumps. One has only to turn over the leaves, the powdery dew that is right there, the white plaque appears in the blink of an eye on the ovaries, young shoots and leaves. If you do not immediately start treatment, the plant will suffer greatly: the ovaries will fall, shoots and leaflets will stop growing and dry.

Gooseberries are very susceptible to mildew

Gooseberries are very susceptible to powdery mildew

Therefore, the same phytopathogen is dangerous for currant, so the disease agent of the disease does not graze from goose bumps to currant and vice versa, all measures for the prevention and treatment of powdery mildew must be carried out on both crops at the same time.


The powdery mildew or oidium is one of the main enemies of grapes, damaging the autonomous and generative parts of the plant. Flowers fall, green berries are deformed, young shoots ripen poorly, as they usually freeze in winter. If the infection did not appear in the spring, but later, by the time the crop ripens, the berries are covered with plaque and crack. They must be destroyed: neither for consumption in fresh form nor for preserving or preparing wine, unfortunately they are unsuitable.

If you miss the primary infection of grapes, there is a risk of being left behind without harvesting

If you miss the primary infection of grapes, you risk being left without a crop

apple tree

If white plaque appeared on apple trees during the flowering period, then hopes for apple abundance are not destined to come true. Powdery mildew does not differ in modesty and can almost completely destroy the crop, causing the gardener unhappy 20% of the total number of fruits. Primary infection occurs in early spring. If white plaque has already been observed on your apple trees in previous years, it is very important to carry out preventive processing in a timely manner.

Powdery dew causes apple trees great damage

Powdery dew causes great damage to apple trees

fight against powdery mildew

  1. The choice of stable varieties.
  2. Preventive processing.
  3. Agro-technological combat measures.
  4. The use of effective drugs (folk remedies, bio- and chemical fungicides).

The active substance of asxystin (synthetic analogue of natural fungiododoxins) suppresses the germination of conidia and the growth of Myzel, which prevents the argument. “Provice” is a real ambulance for plants: it starts to work in an hour and protects you within 2-4 weeks! In addition to mildew, the drug in the fight against other, no less dangerous diseases of garden and garden plants (mild, late lazy, peronosporosis) is effective under the conditions of the open and protected soil. The production of the work solution is extremely simple – the medication is diluted in water (the norm for every harvest is specified on the package) and affected plants are sprayed.

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