Best Fungicide For Succulents: Top 9 Options By Experts!

Fungi are one of the most common diseases of succulents. Indoor plants not exposed to direct sunlight have the highest risk of fungal infections. To tackle the fungus and stimulate healthy growth again, you’ll need the help of a dedicated fungicide. Yet, inappropriate dosages or toxic chemicals can affect plants, animals, and humans. Through various experiments, I have selected the best fungicide for succulents.

These products for succulents are most effective at safe concentrations to help you kill harmful fungi. Let’s find out now.

Our Top Picks

Product ImagesProduct NameDetailsEditor's RatingPrice
Bonide 775 Copper Fungicide Rtu Natural - Best for Overall
  • Item Form: Spray.

  • Liquid Volume: 32 Fluid Ounces.

  • Weight: 1 Pound.
  • 4.9Amazon-Check-Price-button
    Garden Safe Brand Fungicide3 - Best for Versatility
  • Item Form: Spray.

  • Liquid Volume: 24 Fluid Ounces.

  • Weight: 1 Pound.
  • 4.9Amazon-Check-Price-button
    Bonide BND883 - Best for Fungal Disease Control
  • Item Form: Spray.

  • Liquid Volume: 32 Fluid Ounces.

  • Weight: 2 Pounds.
  • 4.8Amazon-Check-Price-button
    Bonide 811 Copper 4E Fungicide - Best for Powdery Mildew
  • Item Form: Liquid.

  • Liquid Volume: 16oz.

  • Weight: 1 Pound.
  • 4.8Amazon-Check-Price-button
    Grower's Ally Fungicide - Best for Broad Spectrum Fungicide
  • Item Form: Spray.

  • Liquid Volume: 20oz.

  • Weight: 1 Pound.
  • 4.8Amazon-Check-Price-button
    Bonide BND141 Plant Fungicide - Best for Organic Gardening
  • Item Form: Spray.

  • Liquid Volume: 32 Fluid Ounces.

  • Weight: 1 Pound.
  • 4.7Amazon-Check-Price-button
    Southern Ag Captan Fungicide - Best for Budget
  • Item Form: Powder.

  • Rate: Foliar spray 2 teaspoons – 4 tablespoons per gal. of water.

  • Weight: 8 Ounces.
  • 4.7Amazon-Check-Price-button
    Bonide Captain Jack's Neem Oil 3 - Best for Tree Protection
  • Item Form: Liquid.

  • Liquid Volume: 32 Fluid Ounces.

  • Weight: 2.25 Pounds.
  • 4.7Amazon-Check-Price-button
    BioAdvanced 708287 - Best for Brown Spots Resistance
  • Item Form: Spray.

  • Liquid Volume: 32 Fluid Ounces.

  • Weight: 2.4 Pounds.
  • 4.7Amazon-Check-Price-button

    Buying Guides

    Best Fungicide For Succulents- Buying Guides

    Buying Guides

    Here are some basic things you need to know before looking for the most effective antifungal. Scroll down for details!

    Active ingredients

    Copper, sulfur, and nem oil are the active ingredients commonly found in fungicides for succulents. Each active ingredient has its own merits.

    • Copper

    This ingredient is the most common active ingredient. The small copper molecule has high antibacterial properties.

    It kills many common fungi, such as Fusarium Oxyssporum or Alternaria Alternata, which cause root rot, fusarium wilt, and leaf yellowing.

    • Sulfur

    This active ingredient will create a protective film to protect the plant from the effects of fungi and harmful pests. In addition, this active ingredient also reduces moisture to create an optimal growth environment for plants.

    • Spring roll oil

    It is not harmful to humans and animals. This active ingredient prevents germination and eliminates fungal cells to inhibit the growth of toxic agents.

    Safety

    Most fungicides have a safety warning on the label. If you want to use a fungicide on houseplants, ensure the product is certified safe for use.

    Mixing method

    There are many different fungicide forms: liquid, aerosol, and powder.

    Depending on the number of plants you need to care for and the most effective method, you will have the most accurate decision.

    For example, a small spray bottle will suffice if you only need a fungicide and insecticide for houseplants. If you have a whole garden to take care of, consider powdered fungicides because this is a reasonably economical solution.

    The Best Fungicide For Succulents Reviews Of 2022

    To kill fungi for plants, I used many particular drugs. But only the products below bring tangible results.

    #1. Bonide 775 Copper Fungicide Rtu Natural – Best for Overall


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 32 Fluid Ounces.
      • Weight: 1 Pound.

    Product’s highlights

    The Bonide 775 Copper Fungicide Rtu Natural is my favorite fungicide spray. In addition to cacti, I also use this medicine on succulents in general, herbs, and vegetables.

    In all cases, Bonide gives excellent sooty mold control results. It quickly reduces the spread of black spots and treats powdery mildew, leaf curl, and many other fungal infections.

    One advantage I appreciate about this drug is the safe ingredient. Its main active ingredient is copper octanoate, a beneficial substance for killing cactus fungus and other harmful agents. This active ingredient is also relatively safe and suitable for my organic gardening needs.

    In the end, I’ve always loved the Bonide 775 also because it’s pretty convenient.

    The manufacturer has diluted the active ingredient to the correct concentration. The spray form is ready to use and very convenient to store.

    Up to now, Bonide 775 Copper Fungicide Rtu Natural is still effective in killing fungi and other dangerous fungal diseases quite well.

    My only complaint about this effective spray is the slightly high price tag.

    Pros & Cons

    What We Like
    • Good fungal control.
    • Safe active ingredients.
    • Suitable for many different plants.
    • Ideal for organic gardening.
    Thing To Consider
    • High price.

     

    #2. Garden Safe Brand Fungicide3 – Best for Versatility


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 24 Fluid Ounces.
      • Weight: 1 Pound.

    Product’s highlights

    Garden Safe Brand Fungicide 3 possesses many attractive advantages.

    The product is in spray form and very easy to use. It’s not difficult for me to spray, cure fungus and kill pests all over my garden.

    The healing effect of Garden Safe is also quite noticeable. Since the first signs of sooty mold were detected, I have been using the spray once a week. After only two uses, the plant was completely healthy, no longer capable of fungal infection disease.

    In addition to effective fungicides, the drug also works to kill insects and pests.

    It works on harmful insects such as beetles, leafhoppers, borers, loopers, etc. Garden Safe is an effective insecticide, very useful for controlling spider mites.

    Invest in Garden Safe Brand Fungicide3, and I’ve got a three-in-one crop protection tool. Although the medicine smells horrible, Garden Safe is my favorite fungicide for succulents.

    Pros & Cons

    What We Like
    • Kills fungi quickly
    • Prevent recurrence.
    • Kill insects and pests.
    • Effective with many different plants.
    Thing To Consider
    • Unpleasant scent.

     

    #3. Bonide BND883 – Best for Fungal Disease Control


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 32 Fluid Ounces.
      • Weight: 2 Pounds.

    Product’s highlights

    The Bonide BND883 is a relatively effective broad-spectrum fungicide. In my opinion, its fungal diseases control ability is even slightly higher than that of sulfur and copper.

    With just a little bit of all-purpose fungicide from Bonide, I efficiently protected all my succulents, especially my cacti, from leaf spots and powdery mildew.

    In addition, I tested this spray on vegetables, fruits, and flowers. The results of disease prevention and control are pretty commendable.

    The spray is effective on many different types of plants. However, when used on houseplants, you should note that you should reduce the dose, especially in your home with small children and pets.

    Pros & Cons

    What We Like
    • Versatile.
    • Time-saving.
    • Broad spectrum fungicide.
    • Effective active ingredients.
    • Resistant to many fungal diseases.
    Thing To Consider
    • Careful to use for houseplants.

     

    #4. Bonide 811 Copper 4E Fungicide – Best for Powdery Mildew


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Liquid.
      • Liquid Volume: 16oz.
      • Weight: 1 Pound.

    Product’s highlights

    White succulent caused by the fungus Erysiphe Cichoarcearum is rarely lethal. However, it is very contagious, affecting the development of plants.

    I often use a garden fungicide that contains copper octanoate to get rid of this fungus. And Bonide 811 Copper 4E Fungicide is one such cactus mold treatment.

    Right in its first use, the drug has controlled the common fungal infection diseases caused by fungi, such as powdery mildew, downy mildew, and rust.

    My crops are fully protected. The signs of powdery mildew on succulents diminish. Healthy plants are not affected by fungi and other harmful agents.

    Although I appreciated the effectiveness of Bonide 811, I had an uncomfortable experience when spraying.

    In the process of using it, I have prepared glasses, masks, and many other protective accessories. Yet, I had a slight chemical burn on my hand. The burns were painless but enough to remind me to be careful when using this fungicide.

    Pros & Cons

    What We Like
    • Comprehensive tree protection.
    • Highly effective active ingredients.
    • Control and limit the spread.
    • Good removing powdery mildew.
    • Treats various fungal infection diseases caused by fungi.
    Thing To Consider
    • Care should be taken to avoid burns and conjunctivitis.

     

    #5. Grower’s Ally Fungicide – Best for Broad Spectrum Fungicide


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 20oz.
      • Weight: 1 Pound.

    Product’s highlights

    I quite like how Grower’s Ally Fungicide Spray works. This fungicide for succulents uses a safe formulation free of residual solvents and heavy metals.

    The effective formula, combined with food-grade citric acid and baking soda, creates a protective barrier for plants.

    Bacteria and fungi cannot grow on this protective membrane. Thanks to that, plants always grow naturally, unaffected by bacteria and fungal infection.

    I also highly recommend Grower’s Ally Fungicide Spray for disinfecting. It handles bugs on succulents well, effectively preventing bacterial growth without affecting plant tissue.

    Another advantage that has made me love Grower’s Ally Fungicide is its effect on a large scale. I used to recommend the product to professional gardeners.

    And in all indoor, greenhouse, or hydroponic conditions, Grower’s Ally Fungicide has received exceptionally positive feedback.

    In short, Grower’s Ally spray is pretty perfect. The only minus point is that the instructions are quite sketchy. Although the bouquet is ready to use, the lack of a guide can sometimes be difficult for beginners.

    Pros & Cons

    What We Like
    • Effects on a large scale.
    • Not affect plant tissue.
    • Effective disinfection for crown rot.
    • Create a protective fence for the tree.
    • Free of solvents and heavy metals.
    Thing To Consider
    • Sketchy guide to use.

     

    #6. Bonide BND141 Plant Fungicide – Best for Organic Gardening


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 32 Fluid Ounces.
      • Weight: 1 Pound.

    Product’s highlights

    Bonide BND141 is one of the organic fungicides that I highly recommend.

    With the main active ingredient being sulfur, this fungicide for succulents is relatively safe for plants. It does not contain harmful chemicals. Bonide BND141 also meets the requirements of organic gardening, friendly to people and pets.

    When I first used it, I was skeptical about the effectiveness of this Bonide diy fungicide. However, the product’s active ingredient has done its job very well.

    The product, combined with baking soda, effectively treats black spots succulents, and many other sooty mold and fungal infections.

    Not only stopping there, but sulfur in particular medicines also positively affects plants’ normal and healthy growth.

    I also use Bonide BND141 to kill fleas and thrips on animals. The ability to distribute and the power of active sulfur have yielded quite surprising results.

    The only negative of this fungicide for succulents probably comes from the likeness of rotten eggs. However, this strange smell is understandable when the product has the main active ingredient, sulfur.

    Pros & Cons

    What We Like
    • Evenly distributed.
    • Make plants healthier.
    • Safe for people and pets.
    • Can treat fleas on animals.
    • It does not contain harmful chemicals.
    Thing To Consider
    • It smells like rotten eggs.

     

    #7. Southern Ag Captan Fungicide – Best for Budget


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Powder.
      • Rate: Foliar spray 2 teaspoons – 4 tablespoons per gal. of water.
      • Weight: 8 Ounces.

    Product’s highlights

    Compared to plant fungicide spray or other liquid products, powdered Southern Ag is a much better budget choice.

    I usually mix one tablespoon of powder and one gallon of water to kill pests per 1,000 square meters. With a weight of up to 8 ounces, Southern Ag Captan diy fungicide promises to last for many seasons.

    Like baking soda, it is an economical choice, but not so that this powder is less effective. The product contains up to 50% Captain. This active ingredient has prevented diseases caused by fungi, anti-ulcer, and grey mold on many crops, including succulents.

    I usually use Southern Ag Captan Fungicide annually every spring to eliminate the risk of disease, creating good conditions for the succulents and other plants to grow throughout the year.

    It is economical and practical, but I do not recommend this form of antifungal powder for beginners. Because preparing the correct dosage is not so easy.

    Pros & Cons

    What We Like
    • Savings.
    • Wide area effect.
    • Suitable for many types of plants.
    • Create a good environment for plants to grow.
    • Good prevention of fungal infection diseases caused by grey mold.
    Thing To Consider
    • Difficult to use for beginners.

     

    #8. Bonide Captain Jack’s Neem Oil 3 – Best for Tree Protection


    Amazon-Check-Price-button
    Important Specifications

      • Item Form: Liquid.
      • Liquid Volume: 32 Fluid Ounces.
      • Weight: 2.25 Pounds.

    Product’s highlights

    I don’t just use Bonide CAPTAIN JACK’S Neem Oil when detecting cactus white fungus. I also use the product to prevent fungal infection diseases before molds and insects damage plants.

    Nem oil acts as a dormant spray, creating a protective film for plants. In all weather conditions, harmful insects and fungi are unlikely to affect plant growth.

    Bonide Captain Jack’s is also quite an effective insecticide. It kills larvae and eggs and weakens insects in the adult stage. Neem oil is one of the few products that are effective in preventing the attack of harmful pathogens on plant tissues.

    I also quite love the natural ingredients extracted from the neem oil. Although its smell makes me nauseous, there’s no denying these organic fungicides for vegetables have positive effects.

    Pros & Cons

    What We Like
    • Create a crop protection film.
    • Prevent fungal infections.
    • Kill eggs and larvae of pests
    • Good fungal infection prevention.
    • Meet the organic gardening requirements.
    Thing To Consider
    • Nem oil has a rather unpleasant smell.

     

    #9. BioAdvanced 708287 – Best for Brown Spots Resistance


    Amazon-Check-Price-button

    Important Specifications

      • Item Form: Spray.
      • Liquid Volume: 32 Fluid Ounces.
      • Weight: 2.4 Pounds.

    Product’s highlights

    BioAdvanced 708287 is my top choice for treating fungal infection brown spots on cactus.

    With a powerful formula, the product effectively controls brown and black leaf spots. In addition, I also highly recommend BioAdvanced 708287’s ability to treat powdery mildew and scab.

    More surprisingly, this homemade plant fungicide is not affected by rain or irrigation. Plant roots absorb active substances that kill harmful agents and comprehensively protect plants.

    In addition to effectively killing dark brown spots, BioAdvanced 708287 also eliminates harmful insects such as beetles and caterpillars.

    This versatile formula does a great job of protecting plants, creating the ideal environment for succulents and other plants to grow.

    In short, I can’t complain about the effectiveness of BioAdvanced 708287. My only problem with this product is its nozzle.

    This design is often clogged and inefficient. I had to find a way to replace the nozzle to make it easier to use.

    Pros & Cons

    What We Like
    • Perfect brown spot control.
    • Good white spot treatment
    • Easy to remove harmful insects.
    • Easy to use.
    Thing To Consider
    • Need to improve nozzle quality.

     

    FAQs

    The guidelines above cover some aspects of choosing fungicides for succulents. To learn more about active fungi and insect elimination ingredients, you should refer to some information below.

    What is a good fungicide?

    A natural fungicide should be friendly to plants, animals, and people.

    As a result, quite a few manufacturers have opted for plant-based fungicides such as pyrethrin obtained from calendula or using detergent-free dish soap.

    Why does my succulent have mold?

    Lack of sunlight is the leading cause of powdery mildew in succulent plants.

    How to treat succulent fungus?

    To treat succulent fungus, you can look for an all-purpose fungicide.

    In addition, you can also make your fungicide by mixing baking soda with water in the correct ratio.

    Baking soda is bactericidal, making it the perfect mild solution to kill fungus.

    Final Thoughts

    The Bonide 775 Copper Fungicide Rtu Natural still makes me quite satisfied. I always use it to treat fusarium wilt and pests quickly and thoroughly.

    In contrast, to prevent the risk of fungal infections or get rid of pests early, I also regularly use Bonide Captain Jack’s Neem oil. This organic seed oil has never let me down in protecting plants from harmful agents.

    I believe the two suggestions above will meet all your expectations.

    In addition, you should also test the best fungicide for succulents samples included in the article at least once. There are not many options available on the market that can provide better performance than the names mentioned above.

    5/5 - (1 vote)
    Nguyen Truong Anh Mai
    Nguyen Truong Anh Mai
    Articles: 9