Remedies to combat powdery mildew

n the following article we will talk about how to fight the mildew a fungus in the plants of the gardens, gardens or fields.

The powdery mildew  is visibly related to a velvety-looking white spot that you see on the plants.

Also called white oidium, we can suffer the mildew in the rose bush and on the vine but especially in tomato. In reality, unfortunately the mildew can be found in many crops.

In the following article we will explain how to eliminate it and how to combat it in our gardens and orchards.


What is the powdery mildew?

It is a bacterial microorganism that reproduces clearly in plants, it is generally velvety white in appearance. In this article you can find several images of powdery mildew.

This pest swallows the leaves of the plants acting as a microorganism, it is found on the front face of the leaf, although this fungus affects the stem and fruits in addition to the leaf.

Why does the Oidio fungus appear?

This fungus comes to the life of the plants for several reasons but the main ones or of greater weight are: the humidity and the little fluidity of air or ventilation.

Remember that this fungus reproduces by spores, a good flow of air or ventilation will prevent that microorganisms form spores that affect plants in the garden or garden .

This fungus does not usually have a specific storm to appear, which makes it a fungus difficult to predict during the preventive period, however, this fungus is purely moisture-loving so during the summer or the rainy season it should be provided attention to the leaves of the plants the stem and the fruit.

This white enemy of the plants bases its “attack” on covering the leaf and even the stem of the plant preventing it from carrying out its photosynthetic process, damages the fruit; This is the fungus that leaves fruits with moldy velvety texture.

This fungus is clearly monogamous, which means that if it affects one of your pepper plants, it will not affect your pepper harvest, that limits its expansion throughout the garden and if you act quickly we will prevent even the plant that affects It looks whole food.

What are the most vulnerable plants to powdery mildew?

The most vulnerable plants or fruits to suffer from oidio are:

  • Rosales, dahlias, laurel, carnations, do not forget me, cayenas, orchids, begonias.
    (These ornamental plants are especially the easy target of this fungus ( powdery mildew). More attention is recommended to these potted plants.)
  • Melons, sideburns, cucumbers.
  • Tomato, strawberry, grape.
  • Peaches, apple trees, plums, apricots.
  • Mint dates.
  • Cherry trees.
  • Pumpkins

Oidium prevention

If you are just going to start building the garden, the garden or the sowing is best to start doing things well, for this you take the appropriate measures.

Plant plants that belong to the climate, when you are going to establish what kind of plantation you want, try to get plants that occur in the area where they will be planted, it is important to harvest or produce vegetable fruits or ornamental plants that do not have problems with the climate In this way we guarantee that your health will be adequate since you can with the climatic variants.

Avoid making your garden in a gloomy and humid space, try to get a space in the air, make breeze stick sun make shade according to certain hours and at night do not get so damp or cold. This is a basic preventive way to avoid problems with pests or fungi in general.

The powdery mildew is produced in cold humid spaces and the low concentration of air. Let’s avoid this from the beginning.

Include among the plants to harvest some aromatic plants in this way you will keep certain types of fungi , spores or pests that affect the healthy development of the plants and the productive harvest with delicious fruits and suitable to be consumed.

Avoid the mildew by sowing your crops correctly

Avoid sowing the plants very close together, whether you are making a small garden in the yard, an orchard or a sowing take certain special measures so that you do not have problems, remember that the humidity and shadows that are formed while the plants are close together create organic biodiversity that ends up being fungi and small pests in principle, but that can end up being the guest to dine the plants you are harvesting.

Be careful with watering in your garden and orchard

Avoid excessive watering of plants, no sprinkler irrigation and much less open hoses for hours in the garden, keep in mind that the mildew is formed by moisture in the plants and lack of air.

Opt for drip irrigation and generally avoid watering the garden plants every day and every time. It is recommended to give them some water at night so that the plant drinks the water it wants and the next day it can better absorb the energy provided by the sun.

Fungicides against Oidium

As a prevention you can buy a fungicide in our store, and rosé the plants before the rainy season or the cold season, there is currently a wide variety of them, many are even friendly to the environment this in case it is A wide crop of producing plants.

It is important that the fungicide that is acquired is not toxic so that it does not affect the fruits that are going to be consumed.

If you start to notice some white spores on some leaves, start them as a prevention, do this, with one hand pull, no scissors, we do not want to oxidize the plant or that it is affected by a metallic cut.

Be aware of the weeds that are forming around the garden, orchard or sowing, these usually form shade and biodiversity thanks to the shade and moisture they store with their presence, and even they can be in themselves small plants that will take advantage of The life of the production plant.

Be alert to pluck these herbs and keep the grounds clean this a way to prevent the powdery mildew or any other fungus.

Try to keep the leaves of the plants under control, this being possible from time to time especially it is advisable to pay attention to those plants that usually have many leaves.

Focus on pruning those that do not allow the passage of light to the root, or those that remain under constant irrigation or those that came out first, that is, the largest and oldest.

Maintain the balance of the plant with the leaves that look healthy, in a period of growth.

The leaves of fruits or vegetables and even of ornamental plants are very prone to diseases, pests, parasites and fungi avoid tearing the excessive leaves.

As a prevention and as a natural remedy you can prepare a large amount of horsetail depending on the size of your garden or garden, water the plants with such water periodically, it will keep the powdery mildew away from the plants prone to said fungus.

Step by step to fight the mildew in your garden

We explain to you how to fight the hatred in your garden in case you already have it:

Make a process of ventilation of the area, do everything possible so that it occurs actively, whether you have a plant on your balcony and it is affected, or that it is a crop garden, the plant should receive more fluidity of air.

In case of being ornamental plants in planters, it transports from said plant to a place where it receives more light and greater air flow.

If, on the other hand, the one affected is a garden and you do not have a naturally flowing stream of air , you can get some fans that make you rubbed out of the spore from the plants, but be careful that you can not take it out but expand it.

If the number of plants does not add up to many you can try to remove the affected leaves, stems or fruits manually, burn those leaves after you remove them, remove their ashes.

Home remedies to fight the powdery mildew

An effective home remedy against powdery mildew is:

  • Sodium bicarbonate
  • Vegetable oil
  • Detergent or dishwasher

In a container mix according to the amount of plants that are affected a tablespoon of bicarbonate one of oil for two of detergent or dishwasher, if you want to save the productive crop and consume said fruits do not add soap to the mixture and add only a little oil, focus then on baking soda.

Use it as a natural pesticide with an atomizer container, or you can proceed to spread the mixture and wrap the affected leaf as a small greenhouse. Do it on the days of greater cloudiness this recipe could on sunny day burn such plants or stain the fruits, in addition to cold and humid climates is that the fungus expands or grows.

Take into account, depending on what is harvested, that natural pesticides may or may not affect the taste of the fruits and even be very strong for some plants, however if you are under a very strong outbreak at an advanced stage and want to try to save something, You can try.

Water plus milk, enemy of the powdery mildew

Make a mixture in equal parts of water and milk, this natural pesticide is totally recommended for crops or crops that are going to be consumed, you can do it with sour milk.

The bacteria provided in the milk is the enemy of the fungus. This bacteria will fight the fungus by eliminating it from the plants and will not affect the taste of the fruits or crops.


In a liter or more of water mix together a quarter of grams of chamomile leaves, proceed to bring the water to a boil, add the chamomile florets, let cool, proceed to remove the remains of the florets, pour the contents into a spray container.

If the watering is in the form of prevention, do it once a day, in case the fungus is already established in the plant, do it twice a day in the morning hours and at the end of the afternoon, this recipe will fortify the plant and It will keep her healthy.


The powdery mildew can be controlled by the scattering of sulfur, sulfur is an excellent fungicide of very low cost, it is extremely effective in removing the powder from plants from orchards or gardens.


Garlic is one of the pesticide s nature is more effective against powdery mildew , the fungi , bacteria, mites, scale insects and pests in general, is an excellent ally when building a garden or sembradío. Make a tea or infusion of garlic.

Proceed to crush a considerable amount of garlic at least thirty garlic per liter of water, strain the water to boil and add the garlic.

Let cool, for each infusion part add two of water, do this in a spray container.

Water the plants every day in the hours with more sunshine, this will gradually cause the powder to disappear from the plant or fruit in question without affecting the taste of the crop.

Copper sulphate

To provide good that the fungus already introduced to expand or it reaches harvest, which do recommended, is to mix some copper sulfate with water at least a portion of copper by three of water, place the content in container with atomizer, performs this action after a night of heavy rain, humidity , or cold.

Avoid certain subscriptions

If you are using fertilized or fertilized land, try to verify that it has low nitrogen levels, this to prevent the earth from carrying fungi , parasites, expensive bacteria, or vulnerable to pests and predators .


Get some 22-point marquitas at some garden store (well known for having 22 points on your body) are usually not expensive and you are quickly done with the powdery mildew and even with the cochineal.

Fact : if on the contrary you find one in your garden, it is you who got them intentionally, be attentive because it is a sign that you have a fungus or parasite in the garden or garden. That is why he is there.

by Abdullah Sam
I’m a teacher, researcher and writer. I write about study subjects to improve the learning of college and university students. I write top Quality study notes Mostly, Tech, Games, Education, And Solutions/Tips and Tricks. I am a person who helps students to acquire knowledge, competence or virtue.

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