Protecting zucchini from diseases (natural farming practice). White coating on zucchini leaves: dangerous or not A white coating has appeared on zucchini leaves
Zucchini is a very popular vegetable crop, growing on most personal plots. This plant is easy to care for and bears fruit well.
But often the joy comes from bountiful harvest is overshadowed by a disease that suddenly befell the plantings, in which white round spots form on the upper sides of the leaves. These are signs of such fungal disease How powdery mildew on zucchini, which is considered very dangerous.
Causes of powdery mildew
Powdery mildew is considered a rather dangerous fungal disease, occurring in most cases in the non-chernozem zone. It can affect not only pumpkin or squash, but also various varieties zucchini. This disease is particularly harmful in conditions high humidity air, so during periods of frequent rain, powdery mildew is almost always found on zucchini.
This affects mainly stems with leaves and appears in the form of small white spots that densely cover the affected area of the plant. It can also appear in the form of a white coating, both on the upper and lower leaves of the plantings, growing more and more as the bushes grow. Diseased leaves soon dry out, and the shoots become bent and die over time.
There are several reasons for the occurrence of this harmful disease:
- increased air humidity;
- excess nitrogen in the soil;
- frequent watering in large quantities;
- highly dense plantings.
Powdery mildew can also occur if the soil is too dry. long time, followed by abundant watering. Also, when there is a severe drought, followed by a prolonged period of rain, it can trigger the activation of fungal spores, as a result of which an alarming appearance begins to appear on the leaves of zucchini. white coating.
Fertilizers applied at the wrong time or completely absent can also lead to the active spread of fungal spores on infertile soil. They pose a serious threat to plantings, since by touching an infected leaf once, a person can unknowingly transfer the fungus to other plants.
Prevention of disease occurrence
As you know, it is easier to prevent a disease than to get rid of it later. Therefore, it is important to follow preventive measures in order to protect plantings from a dangerous disease.
In order to minimize the risk of powdery mildew on the site, you must adhere to the basic rules of caring for zucchini.
- Regularly thin out plantings.
- Promptly remove old leaves that come into contact with the ground.
- Water the zucchini only after upper layer the earth will dry out completely.
- Fertilize with phosphorus and potassium in a timely manner.
- Do not overuse nitrogen fertilizers.
Before the ovary appears experienced summer residents It is recommended to gently scald with boiling water. This can be done most conveniently using a garden watering can with a diffuser. Need to fill it up hot water and quickly sprinkle each plant entirely, without lingering long in any one place.
Short term impact high temperatures hot water will not have time to inflict time on the young animals, but the fungal spores will certainly die from this.
Treatment
If prevention was not provided in time and the zucchini became infected with powdery mildew, it is important to immediately begin the fight against this dangerous disease.
At the first signs of the disease, high-quality thinning of the plantings should be carried out, removing old and weak leaves, as well as flower stalks, from the remaining bushes. This will not only prevent the spread of fungal spores to healthy zucchini, but will also greatly contribute to improving the illumination of the plants.
It is imperative to water or douse the plantings with one or another remedy for powdery mildew. In this case, not only the leaves, but also all shoots and stems should be treated with a specialized preparation.
All this will help prevent the spread of infection to healthy plants and destroys fungal spores.
Independent preparation of medicinal mixtures
But to treat powdery mildew you don’t need to resort to help chemicals, and prepare healing remedies yourself at home.
A soap and soda solution has proven itself to be very effective; the ingredients for its preparation can easily be found in every home. You will need to combine 25 g in a large container soda ash, 5 g liquid soap and add 5 liters of hot water. All ingredients must be thoroughly mixed and allowed to cool. After this, you need to pour the solution into a garden watering can and spray the plants. It would not be superfluous to treat the top layer of soil adjacent to the young growth for the purpose of disinfection. For maximum positive effect, the procedure should be repeated after 10 days.
You can use a whey solution, which also fights fungal spores quite effectively. You will need to combine 1 part whey and 10 parts water, mix everything until smooth, then fill a watering can with the resulting solution and process the zucchini. The spraying procedure must be performed 3 times and only in dry weather, at three-day intervals.
A timely fight against a harmful fungus will quickly eliminate powdery mildew and reliably protect plants.
Zucchini purchased on the market do not have the necessary set of nutritional components. Many people prefer to grow their own vegetables. But during cultivation, an unusual coating may appear on the tops of the shrub; the leaves of the zucchini turn white. To prevent the growth of the affected area, it is necessary to identify the cause of the problem and immediately begin to act on the damaged bush.
Causes of white spots on zucchini
Zucchini - do not require special care, but have the ability to give various dishes a specific taste and aroma. With normal growth, the shrub quickly increases its green mass, begins to bloom and form ovaries. Cultivate vegetable crop simple enough. But if a white coating appears on the leaf plates, you need to urgently save the plant. The following are the reasons for the appearance of white spots: :
If the zucchini leaves turn white and the bush is not treated or proper care, then the white spots spread over a large area. This process significantly affects the yield of the affected plant: vegetables become unsuitable for consumption. As a result, you can not only lose one bush, but also lose all the plantings without waiting for the harvest.
What to do if a white coating is found on the leaves?
If burns appear on the leaves, there is no way to help the plant. But such white islands do not affect the reduction in yield and do not cause significant harm to the bush. To increase the immunity of zucchini, you need to spray the foliage with an epin solution. After this, young leaves will appear that are not sensitive to baking sun rays. If the appearance of spots is caused by excessive fertilizing, then you need to increase watering in order to quickly wash out the resulting additive.
The plant should be freed from weeds and the bushes should be given more sunlight necessary for development. During treatment, you should refrain from any fertilizing or spraying. For a quick recovery, you need to treat the bush with solutions made according to recipes folk remedies or chemical insecticides.
If the leaves of the zucchini turn white, and upon examination of the bush the development of the disease is detected, then urgent action on the plant is required. Otherwise, the entire crop will die.
To eliminate the disease, it is necessary to tear off all affected leaf blades and put them in plastic bag. This is necessary so as not to provoke the spread of fungal spores. When tobacco mosaic develops, all affected leaves are removed and burned to prevent the spread of the disease. After this, the soil near the bush should be sprayed with a concentrated solution of potassium permanganate.
When powdery mildew occurs on foliage, spraying with Oxyx is an effective treatment. The affected leaves are carefully cut from the common stem. If fruits have already formed on the bush, then it is not recommended to use chemicals; you need to use a solution based on sour milk and use the product every 4 days.
Preventive measures to combat the appearance of white plaque on leaves
It is easier to prevent the formation of white spots on the foliage of a shrub than to deal with their elimination later. Therefore, it is necessary to adhere to certain rules of care and carry out preventive measures to combat diseases.
During cultivation, zucchini is susceptible to diseases. In order to protect the crop, it is necessary to know the most dangerous diseases seedlings and adult zucchini and their treatment.
Symptoms of zucchini diseases
The main symptom of most zucchini diseases is tissue cell degeneration. Rot, necrosis, and empty cavities form inside the fruit. Spots form on the leaf, in most cases turning into through holes. Leaves often curl and dry out, which leads to weakened photosynthesis and death of the plant.
When asked why zucchini leaves turn white, the answer is usually the presence of fungal diseases. If they are present on the leaf plate (usually on its lower side), a coating of white or gray. On its surface you can often find naked eye columns of pathogenic fungi.
Types of diseases
Zucchini diseases
Most diseases found on zucchini fall into the fungal category. They are caused by fungi, which are located mainly on plant residues from past harvests and in the upper layers of the soil. Failure to comply with agricultural practices is the most significant reason for their spread. Warm and humid summers, excess nitrogen, and dense plantings also contribute to their development.
Important! Some diseases are spread by viruses that cause a number of pathological changes in the plant, most of them negative. Zucchini is usually affected by a viral disease such as mosaic. These diseases usually cannot be treated, so the affected plantings are destroyed.
Bacterial diseases are provoked by the action of bacteria that provoke various rots and wilting of foliage and stems. Classic example A similar disease in zucchini is bacteriosis.
Zucchini diseases
Powdery mildew on zucchini
It is considered one of the most common fungal diseases on zucchini and other cucurbits. The foliage is usually under threat, but petioles and stems may be affected. The main symptom is the appearance of small whitish spots in the different parts leaf blade. Gradually they increase in size and merge together, which leads to withering and death of the leaf.
Favorable factors for the spread of the disease:
- excess nitrogen;
- excess moisture content in the soil;
- improperly harvested and prepared in autumn period the soil.
Most effective measure The fight against the disease is treatment with colloidal sulfur. For the treatment of zucchini disease in open ground 20 g of the substance is diluted in 10 liters of water; in a greenhouse, the dosage of the drug is doubled. Spraying with disodium phosphate (50 g/10 l of water), ground sulfur (300 g/10 l of water), and isophene are also effective.
If the disease is mild, it is recommended to use folk remedies to treat it. So, the leaf is burned with ground sulfur, and then sprayed with infusion cow dung. To prepare it, a kilogram of mullein is diluted in 3 liters of water and infused for 3 days, after which it is filtered and diluted with water in a ratio of 1:3. It is also possible to use fungicides Bayleton and Topsin.
On a note. Once every one and a half to two weeks, treatments are carried out with a mixture that includes a liter of skim milk, 2 tbsp. l. liquid soap and 1 ml of iodine. These components are diluted in 9 liters of water.
Powdery mildew on zucchini
Black mold
With this disease, brown marks of angular or round shape, characterized by a yellowish tint. After some time, the affected leaf blades become covered with a grayish coating, on which there are spores of the pathogenic fungus.
The disease develops most strongly under the following conditions:
- incorrect predecessors for zucchini;
- densely planted plants;
- leaving the remains of zucchini on the site from last year.
The best preventative against black mold is careful adherence to generally accepted agricultural techniques for cultivating crops. It is necessary to thin out the beds, remove weeds in a timely manner, and remove all plant debris from the site in the fall. If the disease does appear, then it is necessary to remove diseased specimens from the plot or greenhouse as quickly as possible and destroy them, preventing further spread of the pathogen.
Anthracnose
All organs of the plant are affected by the disease. The disease more often affects greenhouse or hothouse zucchini than those growing in open ground. Brown, oval-shaped spots form on the leaves of zucchini, and depressed marks appear on the stems, roots, and inflorescences. Brown. Soon the fruits begin to wrinkle and rot. In place of leaf spots, through holes are formed.
Important! It is necessary to treat anthracnose when the initial symptoms appear, because if the disease reaches the root system, the plant cannot be saved.
The most favorable factors for the disease are:
- high soil and air humidity;
- irrigation in hot weather;
- poor removal of plant residues from the site after harvesting.
To prevent the disease from manifesting itself, plant remains should be thoroughly removed from the plot. During the growing season, it is important to carry out regular weeding and moderate irrigation. Anthracnose can spread through seeds, so careful selection is necessary. planting material. Before sowing, it is allowed to treat it with a 0.2% solution of copper, boron and manganese, and also soak it in a solution of phytoiodine.
It is extremely important to observe crop rotation and not allow zucchini to be planted in the same place where pumpkin crops were grown the year before. This is due to the fact that all these crops are equally affected by anthracnose. It is allowed to return plants to their old place no earlier than after 3-4 years.
On a note. Once every two weeks, the foliage is treated with Fitosporin and other biological products for zucchini. If there is damage in greenhouses, they should be disinfected after harvesting the fruits with bleach (200 g/10 l of water).
Anthracnose on zucchini
When initial symptoms appear, the following drugs are used:
- 35% colloidal sulfur paste (50-100 g/10 l of water);
- Bordeaux mixture (100 g each copper sulfate and lime/10 liters of water).
If the damage has become widespread, the plants are destroyed.
White rot (sclerotinia)
This disease is characterized by a whitish, flaky coating that forms on the petioles of leaves and fruits. Soon, easily visible black dots appear on them - spores of the pathogen fungus. Damaged organs become slippery and soft and soon wither and die. This leads to poor fruiting of the crop.
The disease develops more strongly in the presence of the following factors:
- thickened plantings of zucchini;
- excess nitrogen during fertilizing;
- waterlogged soil and air against a background of low temperatures;
- non-compliance with crop rotation.
In the first stages of the spread of the disease, it is recommended to dust the foliage with a mixture of chalk and copper sulfate, diluted in equal proportions. Dusting with ground coal allows you to delay further development of the fungus and dry out the affected areas of the plant.
On a note. In greenhouse conditions, to get rid of the disease, it is recommended to ventilate the greenhouse more often and reduce its humidity. For irrigation, only warm, settled water should be used.
For foliar feeding, in a 10-liter container with water, I dissolve 10 g of urea, 2 g of copper sulfate and 1 g of zinc sulfate. If the plant is too badly damaged by sclerotinia, it is recommended to dispose of it along with the fruits.
Root rot
The main symptom of the disease is constrictions on the roots. The roots, root collar and stems become brown and rot, the foliage in the lower tiers begins to turn yellow. The ovaries of the affected plants usually fall off, and small unfulfilled fruits form from the remaining ones. Without proper care, the bush soon dies.
The reasons for the spread of the disease include:
- irrigation with water whose temperature is below +20°C;
- excess of nutrients;
- sudden changes in air temperature;
- presence of weeds on the plot.
Important! If symptoms are detected on the plant, it is recommended to sprinkle soil at the base of the plant, which will allow new roots to form. Among chemical preparations, it is recommended to use those containing copper for spraying. Diseased specimens are destroyed by fire, and the area where they were cultivated is treated with copper sulfate.
Root rot on zucchini
Downy mildew (downy mildew)
The presence of this disease is the answer to the question why the leaves of zucchini seedlings curl. The disease primarily affects the foliage of plants. In the first stages of development of the disease, oily marks with a yellow tint are formed. On back side A grayish coating appears on the leaf blade, on the surface of which pathogenic fungi are present. With further spread of the disease, the foliage begins to turn brown and curl, and the affected parts of the leaf fall out. The result of this is disruption of photosynthesis.
The disease develops in the presence of factors such as:
- strong regular fogs;
- plant residues on the plot;
- dew;
- high humidity in greenhouses and greenhouses.
In the first stages of development of downy mildew, treatment of plantings with potassium permanganate, diluted in an amount of 2 g in 10 liters of water, is very effective. Among the fungicides, Oxychom, Topaz, Bordeaux mixture, and copper oxychloride are highly effective.
Additional Information! Treatment with preparations containing increased content potassium
Fusarium
The disease is one of the most dangerous due to the fact that the entire vascular system of zucchini suffers from it. The main symptom is the accelerated wilting of stems and leaves, quickly leading to the death of seedlings.
The development of the disease is influenced by such indicators as:
- plant remains on the site;
- excessive amount of weeds on the plot;
- disrupted crop rotation and general non-compliance with agrotechnical recommendations.
Important! To counteract the disease, it is recommended to eliminate the effect negative factors. If the damage occurred in greenhouse conditions, the diseased specimens should be destroyed along with the soil ball. The soil in the greenhouse is completely replaced.
Bacteriosis
In the first stages, clearly visible bright brown spots form on the foliage. Subsequently, through holes are formed along the leaf veins. Brown marks form on the fruits, which lead to their deformation and reduced yield.
The causative agents of the disease feel good under the following conditions:
- increased air and soil humidity;
- the presence of plant residues on the soil surface;
- sharp temperature changes between light and dark time days;
- seeds that have not been disinfected.
Bacteriosis on zucchini
To prevent the disease, it is necessary to follow agricultural practices, in particular, remove the remains of the previous harvest and observe crop rotation. Before planting, seeds are treated with a 0.02% solution of zinc sulfate. During the growing season, plantings must be treated with 1% Bordeaux mixture or 0.4% solution of copper oxychloride. Diseased fruits and plants are destroyed.
Note! The use of Bordeaux mixture is stopped at least two weeks before the start of harvesting.
Botrytis (grey mold)
The disease affects zucchini mainly in the first phases of the growing season. The ovaries and foliage of the plant are damaged. The plantings take on a brown color, become covered with a grayish coating, and become damp.
Favorable factors for the development of the disease include:
- excessively moist soil;
- irrigation later in the day and cold water;
- excess nitrogen content;
- strong temperature changes;
- insufficient watering.
In the initial phases of cultivation, plants are inspected once every week and a half for damage. Affected leaves and ovaries are destroyed. To prevent further development of the disease, plants are powdered with a mixture of copper sulfate and copper in a 1:2 ratio.
Mosaic
According to the description of the disease, the foliage is covered with white-yellow star-shaped spots. Gradually they acquire a completely white color, green color only leaf veins are retained. The fruits also turn yellow and become covered with white stripes. The disease cannot be treated.
On a note. To prevent re-infection, it is necessary to carry out complete replacement soil and remove plant debris. Affected specimens are burned to prevent further spread of the disease.
Mosaic on zucchini
Prevention
Most often, the development of diseases on zucchini can be avoided by strictly observing agricultural cultivation techniques. It must be borne in mind that cucumbers, melons, and zucchini are bad precursors for the crop. More suitable for them:
- cabbage;
- tomatoes;
- legumes;
- greenery;
- roots;
- potato.
It is necessary to carefully remove all plant debris from the previous harvest from the site. Should be supported optimal mode humidity and nutrient content, trying to avoid distortions in one direction or another. Weeds and heavily damaged plants must be removed from the site in a timely manner.
Seeds must be disinfected before planting. To do this, it is recommended to soak them in a solution of 5 g of soda per 1 liter of water.
Important! When growing zucchini in greenhouses and greenhouses, the plants are often exposed to excessive humidity, which is optimal condition for the development of fungal diseases. Regular ventilation of the room will avoid this problem.
Pest control measures
Zucchini is often damaged by insects and other pests. In addition to destroying crops, many of them are carriers of pathogens.
The fight against them involves the use of appropriate insecticides. In some cases it is possible to get by biological methods protection and folk remedies. Thus, growing garlic, hot pepper, sage, mustard, and lavender next to zucchini drives away slugs from the plots. Spraying plantings with a decoction of garlic leaves, infusion of potato tops or onion peels is effective in combating spider mites.
To effectively combat diseases and pests on zucchini, it is necessary to carry out standard agrotechnical measures. If done correctly, it will be possible to save the lion's share of the harvest.
A garden plot does not always bring joy and abundance winter preparations. Excellent seeds, weeding, and watering can go down the drain due to a white, flour-like coating on the plants. This is not harmless dust.
The beds are experiencing the expansion of a fungal disease that can completely destroy the entire crop. Symptoms of the disease of all plants are similar, but control methods may vary. How to get rid of powdery mildew on zucchini and save your favorite vegetable?
If trouble is already in the garden, urgent measures need to be taken.
- Very carefully tear off the leaves and flowers affected by the disease and place them in a plastic bag so as not to shake the fungal mycelium and burn it.
- Thin out the bed, get rid of thickening, allow sunlight to the diseased plants.
- Stop any feeding and spraying for a while.
- Treat zucchini with chemicals or treat plants using traditional methods.
Chemical methods for controlling powdery mildew on zucchini
When gardeners asked how to get rid of powdery mildew on zucchini, science answered with several effective drugs:
- "Vitaros"
- "Topaz"
- "Previkur"
- "Fundazol"
You can also use:
- Bordeaux mixture
- copper oxychloride
Folk remedies for powdery mildew on zucchini
How to quickly get rid of powdery mildew on zucchini? Why fast? Every summer day is precious for a gardener. After processing the zucchini chemicals time must still pass to neutralize them in the product. You can’t always wait, and not everyone welcomes chemicals in their garden.
Our ancestors also fought powdery mildew and knew how to get rid of this infection. Let's call on folk remedies.
- Serum solution.
The most common way. 1 liter of whey per 10 liters of water. Spraying should be carried out on a dry day, sparing the solution. After 2 - 3 days, repeat, if necessary, several more times.
- Dry mustard solution.
Dissolve a bag of dry mustard in a bucket of water and spray on diseased plants. Repeat until cured.
- Garlic infusion.
Cut the head of garlic into small pieces, add a liter of water and leave for several days. Strain and treat the zucchini with garlic infusion.
- Soda solution and laundry soap.
Grate 50 grams of laundry soap on a coarse grater and add the same amount to it baking soda and dissolve everything in a bucket warm water. Once a week it is useful to treat squash beds with this solution.
- Horsetail decoction.
Bouquet of fresh horsetail add one liter of water and simmer over low heat for about half an hour. Strain, dilute with five parts warm water and treat the zucchini.
Prevention is the best help for zucchini
Neither plants nor gardeners like emergency situations. Knowledge simple techniques agricultural technology and prevention will make work in the garden predictable and the harvest expected.
- Compliance with crop rotation rules.
You cannot grow zucchini for several years in one place. They can be returned to last year’s garden bed only after 4 years.
- Deep digging of the bed.
The top layer of soil may be infected with fungus. When digging with a whole bayonet shovel, the top layer goes deeper and does not receive sunlight. Fungal mycelium does not receive nourishment.
- Thorough cleaning of plant debris and leaves in the fall.
Cleanliness and order always pose a barrier to various diseases.
- Regular watering of zucchini only with warm water.
Watering with cold water provokes the development of powdery mildew.
- Selection of varieties resistant to powdery mildew.
Breeders have developed many varieties of zucchini that resist fungal diseases; finding them will not be difficult.
Growing zucchini requires knowledge and skill. Then cultivating them will be a joy, and the reward for your hard work will be a delicious collection of jars in the cellar.Have garden plot, on which you can grow your favorite vegetables and fruits - the dream of many. But the work carried out on it can be overshadowed by diseases, affecting plants. Gardeners call powdery mildew (when white spots appear on the leaves of a plant) one of these troubles.
Powdery mildew on a squash bush
Powdery mildew is a fungal disease that attacks the leaves of vegetation. Gardeners recommend taking this seriously. Otherwise, this will lead to a decrease in yield and death of plants.
Powdery mildew on zucchini
Zucchini is a summer vegetable that is loved by many. Neutral taste, unpretentiousness in growing, ease of preparation, the ability to make excellent preparations for the winter - these are not all the advantages of this modest vegetable.
Growing zucchini on the site becomes problematic when they are affected by powdery mildew.
It is easy to see and recognize: white spots appear on the leaves of the vegetable, forming a dense whitish coating over time.
The disease is not as harmless as it might seem at first glance. The leaves on the plants gradually begin to curl and fall off. This leads to a noticeable decrease in yield, and subsequently to the death of the plant. Therefore, as soon as you notice signs of the disease - white spots, immediately begin to fight this disease. Otherwise, it can infect all the vegetation on the site.
There are two types of powdery mildew:
- real;
- false.
Powdery mildew on zucchini
Powdery mildew is characterized by the appearance of white on the leaves of the plant. powdery plaque. White spots may also appear on the back of the leaf.
The disease weakens the vegetable, preventing it from fully absorbing the necessary substances.
False or false dew is characterized by the color of the spots that appear - they are yellow or slightly brownish. Mold appears under the leaves.
The causes of these types of powdery mildew vary. Their treatment is also different.
Powdery mildew fungus under a microscope
Prevention of disease and first steps to save plants
Preventing a disease is easier than treating already diseased plants. This does not require much effort or financial costs. It is enough to devote a little time to the plant.
Compliance simple rules agricultural technicians will make the work on the site justified, and the amount of harvest expected.
At the first sign of spots on the plants, it is recommended to immediately begin rescuing the zucchini. For this:
- Tear off disease-damaged leaves and place in a plastic bag. This is necessary in order not to spread the mycelium of the fungus onto other plants.
Diseased plants need sunlight. Therefore, thin out the bed and rid it of thickening. - During treatment, it is recommended to stop any kind of feeding or spraying;
For greater effectiveness, zucchini should be treated with folk remedies or chemicals.
Chemical preparations for powdery mildew for zucchini
Gardeners do not recommend immediately resorting to the use of chemicals to treat zucchini from powdery mildew disease. This method will be justified in the case when the threat from the disease is great for other plants, but it was not possible to cope with it using traditional methods.
If the bush is heavily infected, the fruits begin to rot
A warning in this case is that it is strictly forbidden to eat zucchini fruits during this period.
The essence of chemical antifungal drugs is that they penetrate into the tissues of the plant and become poison for fungal mycelia, causing them to die when they come into contact with zucchini leaves. The effect of such drugs extends to all generations of the fungus.
Among the drugs that effectively cope with this fungal disease of zucchini are:
- "Topaz";
- Bordeaux mixture;
- "Vitaros";
- "Previkur";
- copper oxychloride.
The drug Vitaros - modern remedy against powdery mildew
The drugs are not addictive and are not concentrated in leaves or fruits. But it is not recommended to consume zucchini fruits during the period of plant treatment. You will need to perform several sprays in accordance with the instructions included with the product. Treatment time may take 15-30 days.
Gardeners who support the treatment of zucchini with chemicals claim that this method are most effective and the results of their use are visible immediately.
Traditional methods for combating powdery mildew
Powdery mildew can be removed from your area without resorting to the use of chemicals. It is convenient and does not require additional costs from you. The effectiveness of such remedies was appreciated by our ancestors, who also fought this disease in their gardens and household plots.
A positive aspect of using improvised means is that it is allowed to consume the fruits of zucchini during the period of treatment of the plant without fear.
Ingredients needed for cooking medicinal compositions, can be easily found on the farm. Safety, ease of use, and accessibility are the main advantages of folk remedies for treating powdery mildew on zucchini. You see that the leaves on the plants have turned white - use one of the following methods to combat this.
Ash
First folk method control of this plant disease is based on wood ash. To do this, take 200 g of ash, 1.5 liters of water, 10 g of laundry soap. Pour boiling water over the ash (part of it) and leave to steep for a day. Grate the soap into the remaining water, mix thoroughly and combine with the ash infusion. Treat the affected leaves of the plant with the resulting mixture. After a week, repeat the procedure. Gradually, the spots on the zucchini leaves will disappear.
Wood ash is used in the form of a solution
Soda and milk
The second method, milk-soda, is popular due to high efficiency. It is also highly recommended for preventing the onset of the disease. Mix 250 g of milk in 700 g of water and ½ tsp. baking soda. It is important that the solution is slightly warmed. Place the resulting solution in a spray bottle and spray on the affected plants. It is recommended to do these actions in the evening, at sunset.
Take 2 liters of water, ½ tsp. baking soda, ½ cup vegetable oil and ½ tbsp. dishwashing detergents. Mix all ingredients and shake a little. The liquid should not be cold. It is recommended to treat the leaves of the affected plant with this solution on a gloomy day.
Processing zucchini on a sunny, hot day can cause burns on the leaves. It is recommended to spray the upper and bottom part leaves.
Watering zucchini with a soda-milk solution destroys the fungus
Mix 200 ml of fresh milk with 2 liters of water, slightly heat the mixture. Apply the product to the leaves damaged by the disease using a spray bottle. It is recommended to repeat the procedure every three days until the plant is completely cured. As a preventative measure, it is recommended to apply this solution weekly.
Aspirin
Aspirin tablets (4 pcs.) are diluted in water in an amount of 1200 ml. We treat the affected parts of the plants with the resulting liquid at intervals of 4-5 days.
A seasoning such as cinnamon is one of the ingredients for the powdery mildew solution. 1 tbsp. ground cinnamon mixed with 350 ml isopropyl alcohol. This product is used for the manufacture of medical and cosmetic preparations. Leave the resulting mixture for 12-15 hours, after which we pass it through the filter. In cloudy weather, use a sprayer to apply the composition to damaged leaves.
Aspirin - a remedy for treating zucchini (and cucumbers) against powdery mildew
Infusion of garlic and onion
Garlic infusion: cut one head of garlic into small pieces and add 1 liter of water. Let the resulting solution sit for several days. After this, we spray the zucchini with the resulting mixture weekly. Onions are used in the same way.
Mustard
We dilute a packet of dry mustard in 10 liters of water and treat the plants. Repeat until complete healing.
Traditional methods are attractive because their preparation and safety do not raise suspicions. The naturalness and naturalness of the product for treating affected plants is an undoubted advantage of such treatment.
General recommendations when using remedies for zucchini diseases
Spraying the leaf should be done both from above and from below.
Label the container in which the spray solution is prepared with the date and name of the product. This will prevent you from getting confused and using the solution for other purposes.
Zucchini is an unpretentious and very healthy vegetable. Grown at home, they bring even more pleasure with your own hands. Therefore, monitoring the condition of plants, caring for them, treating and preventing diseases is a mandatory and necessary condition. This is the guarantee of your future harvest.
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