How to Treat Diseases in Succulents

A fungal infection that can affect your succulents could be fatal. Unfortunately, not many people know about this danger.

Succulents are only recently utilized to grow indoors This is the reason why this is the situation. Because of this, the illnesses and their causes haven’t been as extensively studied as other plants.

In all instances it is possible that the reason could be a result of pest damage or mistakes that create an favorable environment that allows the disease to develop.

Whatever the challenges of succulents can be they are, there are still problems to be aware of. I’ll try to provide a detailed explanation of the most frequent diseases and pests that impact these plants, and the most effective methods to fight them.

A Couple Of Rules For Dealing With Succulent Fungal Diseases

  • Any harm to plant health requires drying of the affected surface. The more severe the damage, the longer drying time it takes. This is true even when cutting off cuttings to allow propagation.
  • When the illness is discovered the plant must be relocated to a dry area and not being watered.
  • Check for areas that are decaying in your root structure. Repot the plant using fresh soil and a fresh container after you have removed the affected parts.
  • The plant’s decayed upper parts are eliminated, leaving only healthy tissues. After that, you’ll be able to clean the knife using a chlorhexidine solution.
  • Look for signs of insects on the succulent because they could cause fungus to spread or leave an open wound that can rot in time.

succulents in a square white planter held by person wearing rings

Fusarium Blight Damages Roots and Xylem Tissues

This same disease which affects gardeners could also affect your windowsill. The roots of the succulent and its the xylem tissues suffer, and it can grow upwards from there.

A cut or open wound exposes the tissue that is rusty. The stem is soft, black and decaying once you get close to it. Fusarium is the cause of internal decay in humid and humid environment that has excess water. The stem’s base is the most likely place to be affected by decay.

External symptoms include stunted growth, decreased turgor of the trunk and leaf and a pale-colored appearance. Additionally, the stem starts to dry out and could be able to fall off.

Make use of a disinfected knife clean and treat the affected region. Then, put your plant inside a dry, cool area to recover.

Check that the soil is not contaminated by infections, and then you treat it with a the fungicide. It is best to replace the old soil with a new one.

Also, clean as well as treat the original pot using boiling water to eliminate the fungal spores that remain.

Traditional Treatment for Fusarium Blight

1. When your plant is severely infested, there’s no way to save it. It’s better to remove it and then bury it elsewhere. If you spot any tiny spots, you can remove the affected areas using a sterilized knife and then treat the wounds using the alcohol, or with fungicide.

Treat your pots, windowsills, as well as curtains using Revitalize Biofungicide to stop the spread of infection. It is possible to grow new succulents from healthy shoots from the one that is infected.

[2The second formula for solving is:

  • A one-quart freshwater container
  • 1 1/2 teaspoons of baking soda
  • 1 Tbsp. vegetable oil
  • 2 tbsp dishwashing fluid

Mix them up and spray your succulents with the infected every week. If the disease is still in its beginning stages, this technique will work.

[3Add 1 cup fine woodash into the soap mixture (1 1 tbsp for 2 Liters of water). Make the solution two times every 7 days between.

Root Rot or Late Blight

The disease is prevalent in succulents which have been excessively watered. Soggy and wet soil encourages the development of the phytophthora fungus that causes root rot and then spreads into the upper part of the plant.

Root rot is a terrible affliction for all plants. The most important thing to do is to catch the disease as soon as you can. To keep your succulent alive, cut off any affected parts and let it air dry completely.

Then, you can apply the charcoal powder, or even a disinfectant solution heal the wounds. This, however it will only take effect during the initial stages of the illness.

So, getting rid of the plant infected and its soil is the best option. It is essential to disinfect the pot and soil to stop the spread of infection.

Organic Treatment

Infuse one glass of water in which you have chopped garlic over 24 hours. After that, filter it and add 10 liters of water and 1 g of potassium permanganate. Spray 3 times per every week over a period of 15 days.

Brown Spots on Succulents

Cacti and succulents both have light-colored, round spots that are encased in leaf tissue, or brown spots on plant tissue that dry out, hardens and then becomes crusty.

Remove the brown spots using an abrasive blade and charcoal, then clean the cut area using charcoal. Unfortunately, the once-in-a-lifetime look of the succulent won’t be restored.

Organic Treatments For Brown Spots on Succulents

  • Infuse two heads of garlic in 2 Liters of water for 12 hours. In the concentrated product include the liquid soap, and then 4 Liters of water. The succulent should be sprayed three times per 10 days.
  • The soda ought to be dilute in 10 Liters of water. Spray the succulent that is sick 4 times per week for 14 days.

Soft Rot Disease of Succulent

Soft rot is a fast-growing disease that can kill the succulent within a couple of days. The cause is the bacteria Erwinia carotovora. It is possible to spot the disease when a spot of rottenness covers the majority the stems as well as leaves.

Sometimes, the rot is affecting the crown first, and then it’s known as crown rot. The affected tissue must be removed and sprayed using charcoal or a specific treatment if the area is tiny. Even succulents that are hardy like lithops can be affected by this type of rot.

The majority times you should get rid of the affected succulent. But, this issue tends to occur when the soil is excessively watered during the fall and winter months. The problem can also be triggered by cold-water being used to water the soil.

Organic Remedy for Soft Rot Diseases

  • Five liters of boiling water as well as 50 grams of mustard powder to rest over two weeks. Spray the solution onto leaves on your ill succulents, after diluting it with 5 Liters of water (making it 10 Liters).
  • Another method of treatment is spraying your plants 3 times per week using 10 drops of pharmaceutical iodine, diluted in 10 Liters of water.

Dry Rot Disease Damages The Root Collar

Dry Rot is a fungus which affects the root collar of plants, causing the plants to rot.

In the process, the succulents begin to develop brown-red circular spots that have an orange border. They begin to dry and then fall apart as the affected tissue begins to degrade.

The most destructive disease, even though there isn’t any rot. Dry spots are visible on the stems of succulents, beneath which the dead tissue of the plant is hidden.

It is not possible to cure this disease, so it’s recommended to kill the plant, and then disinfect the windowsill and containers where it was. One treatment using fungicides is suggested for prevention:

Traditional Treatment Methods

  • The succulents should be watered with a mild potassium manganese solution every two weeks to avoid diseases.
  • There is no cure to treat dry rot. To stop the spread of disease eliminate the entire plant and spray the surrounding plants with a broad-spectrum fungicide.

To treat fungal illnesses. These are the fungalicides that I suggest:

Why Do Succulents Get Diseases?

The Succulent Is Susceptible to Diseases Due to a Lack of Light

Succulents face a variety of problems if they don’t receive enough sun. Due to a lack of light, the plants become thin and long and their colors fade, and they can alter so drastically that it’s difficult to determine what type of plant they are.

It’s the absence of sunlight that triggers many illnesses, such as the onset of rot. Therefore, before buying exotic succulents, make sure to determine if you are able to give them enough light.

It is possible to buy special lamps to provide additional lighting in the winter and fall months.

Insufficient light stops flowers from developing buds, and therefore they won’t bloom. However, if you place the lights of a day over these flowers and extend the hours of daylight up to 10-12 hours the issue is rectified.

Excessive Sunlight Causes Sunburn

Sunburn can occur when plants that are on an unlit window sill are put on a terrace that is sunny and with direct sun. At first, spots can develop, and if placed in direct sunlight for long enough the plant could end up dying completely.

When you’re growing your succulents outdoors in the summer months, you must apply a light cloth to protect them from the scorching sun.

In certain instances bright sunlight can cause a lot of damage on plants emerging from the winter dormancy. Succulents must be exposed gradually to sunlight beginning with just an hour or so in the afternoon during the first couple of days.

Then, gradually increase the time. Then, you are able to keep the plants outside for the entire day. However, in the event that it’s hot it will require a dark curtain. The burns manifested as brown spots, and the eroding of the leaves’ upper layer.

Improper Watering Can Lead to Diseases

The ideal watering schedule is supposed to mimic the natural habitat for succulents. But, there are some that are semi-desert and desert natives, and therefore should be watered in dry weather only.

To maintain the health of your succulents you need to determine the amount and how often you keep them hydrated. Insufficient water or overwatering are potential causes of fungal and bacterial diseases in succulents.

The ideal time to water is early in the morning, so that the droplets of water are evaporate before midday sun sets in.

The ideal time to water is early in the morning, so that droplets of water are able to evaporate before midday sun sets in.

If you water during late in the day, water that is on the leaves will take time to evaporate. This is so that the droplets of water don’t act as lenses, magnifying sunlight that is shining on the surface of the succulent.

Spraying plants in the sunlight during the day can result in burns that are hard to heal, which is why you shouldn’t try it.

Winter Watering

Certain succulents, like Haworthia which is a good example, don’t completely remain dormant during winter months. In the winter it is best to be patient until your soil becomes dry before you water. The leaves can also inform the gardener that all is fine because of their flexibility.

The weak and wilting of leaves and Turgidity indicates either over- or under-watering and the presence of diseases.

In general, it is recommended to be sure to water your succulent every 2 to 3 weeks, but only a small amount at one interval of. A typical amount required for a small-sized plant is approximately 5 milliliters.

Temperature Changes Can Affect Plant Disease Resistance

It is essential for the growth of succulents and resting times to be at the right temperature. In the time of rest succulents require an environment that is cool and ventilated and are well-suited to the temperature of our homes.

Bring your succulents that love heat inside if winter’s frosts are particularly severe, but be sure to keep them away from radiators that heat.

Temperatures ranging from 77 to the temperature of 80°F (25 to 27 Celsius) are perfect for a healthy growth and development.

Increased humidity and temperatures can cause your succulents to become brittle. Lack of fresh air could cause the demise of plants.

The growth of succulents slows down in low temperatures between 50 and 60 degrees (10-15 degC) typically in the winter time of rest.

However the overwatering that occurs during this time could cause severe fungal and bacterial illnesses as well as pest infestations.

Increase the frequency of watering during the summer

The summer season brings a whole new set of physiological processes that are brought to the forefront. Some individuals begin to adapt to heat, and try to establish roots.

If the top 2 inches of soil on your succulents becomes dry, it’s the time to water them once more. It is also possible to mist your succulents with water that is clean in the event that the weather is too hot.

Make use of filtered water instead tap water to provide water to your succulents. It is also possible to allow the tap water to sit for a few days before you use the water to feed your plant, since heavy substances and impurities need the chance to disperse. Alternately, you can heat the water in order to make it soft. Rainwater is the most suitable water for succulents, however the it should be kept at the temperature of room.

Suitable Growing Medium For Healthy Succulents

Aloe, Gasteria, and Agave are all true succulents. They aren’t suitable for retail peat-based soil mixes.

They have adjusted its roots for the firm and breathable rocks these succulents flourish on.

It is essential to make an organic mineral substrate that contains only a tiny amount of organic matter. For example, pebbles, gravel, acadama, zeolite and are a few examples.

Include sand after washing it with an anti-bacterial solution and drying it. Be sure that charcoal crushed is present within the soil. Mineral fertilizers provide all the nutrients plants require to ensure healthy growth.

The root and the root collars in plants are cured by a well-aerated soil. This is why it is recommended to create the soil yourself.

Here’s how you can make your own soil that is succulent.

Mix the mixture thoroughly to make sure it’s evenly distributed:

  • 1 part peat-based commercially accessible transplanting soil;
  • 2 parts of sand pumice, perlite or pumice
  • 1 part zeolite;
  • Ground charcoal.

It is recommended to research the guidelines for a particular succulent prior to deciding on the best substrate. In certain instances shungite extracted from water filters is utilized by growers of succulents.

It should fill approximately a third or quarter of your pot. Be sure to have enough drainage and do not skimp on them.

In general, select pots that are wide but not too tall for succulents according to how long the root is. Additionally the bottom of the pot must be large enough to allow the water to drain easily.



Went from a bad gardener to a half-decent one over 10+ years. Super happy to share my tips and tricks with you :)