Best Fungicide for Indoor Plants

Best Fungicide for Indoor Plants

Do you have an indoor plant suffering from a fungal infection? Fungicides are one of the most effective remedies you can use to rid your houseplants of a wide range of fungal pathogens. On this page, we’ll go over the best fungicide for indoor plants, how they work, and what kind might be best for your plant’s specific fungus problem.


Best Fungicide for Indoor Plants

Bonide Revitalize Biofungicide, Fungicide/Bactericide Concentrate
Bonide Sulfur Plant Fungicide, Organically Controls Rust, Leaf Spot and Powdery Mildew
Trifecta Crop Control Ready to Use Maximum Strength Natural Pesticide, Fungicide, Miticide, Insecticide 32oz
BONIDE PRODUCTS Ready-to-Use Copper Fungicide, 32-Ounce
Garden Safe Brand Fungicide3, Ready-to-Use, 24-Ounce



Best Fungicide for Indoor Plants – Powder



AgroMagen, GrowSafe Bio-Pesticide, Organic Natural Miticide, Fungicide and Insecticide, Non-Toxic, Concentrate (8.5 Ounce)

GrowSafe Organic Fungicide (Buy Online) kills powdery mildew on contact with no lingering effects. The active ingredients are all-natural food-based oils (soybean & corn oil) that are safe for children and pets. And you can spray this organic fungicide directly onto your plants without harming them in any way. Plus, it’s 100% safe even if someone accidentally touches the droplets left behind immediately after spraying.



Bonide (BND777) – Revitalize Biofungicide, Fungicide/Bactericide Concentrate

Bonide Revitalize Biofungicide (Buy Online) is a safe fungicide that will not harm you, your family, or pets while still controlling the spread of disease on your indoor plants. It works by creating a barrier around roots that prevents disease from spreading into healthy tissue while also helping with root colonization through its natural growth stimulants. The best part? You don’t have to worry about reapplying it every few days. Just apply it once a month during periods of active growth in the spring and summer months when fungus/bacterial diseases tend to attack most often. This formula has been proven effective against blights, molds, rots, spots, and mildews.



Bonide (BND1428) – Sulfur Plant Fungicide, Organically Controls Rust, Leaf Spot and Powdery Mildew (4 lb.)

Bonide Sulfur Plant Fungicide (Buy Online) contains micron-sized sulfur particles which dissolve quickly when applied as a spray or dust. The fine particle size allows better coverage on plant surfaces so you get greater control over diseases like rusts, leaf spots, powdery mildew, and other fungal infections common with houseplants. And its organic-based formula is safe to use around pets and children while being effective against pests such as aphids, spider mites & thrips too.



Myco Bliss Organic Mycorrhizal Fungi (5 Endo Mycorrhizae Species Mix) for Plants (Powder, 2 lb)

Myco Bliss Organic Mycorrhizal Fungi (Buy Online) helps prevent Fusarium, Pythium, and Phytophthora from taking hold in your plants’ roots.

The most common cause of plant death due to root rot is the presence of harmful fungi and bacteria in the soil. These pathogens can easily be introduced into your soil by using contaminated tools or improperly sterilized potting mix.

If your plant is already suffering from root rot, Mycorrhizal Fungi can help clear up the infection and restore healthy growth patterns to your plant’s roots.

Plus, by adding mycorrhizal fungi to your soil, you will also increase the nutrient absorption area of your plant’s roots upwards of 1000 times compared to potted plants with no mycorrhizal fungi present.



Best Fungicide for Indoor Plants – Liquid



Trifecta Crop Control Ready to Use Maximum Strength Natural Pesticide, Fungicide, Miticide, Insecticide 32oz

Trifecta Crop Control (Buy Online) offers an alternative to harsh chemicals or pesticides that can damage plants and harm your health.

This natural plant protection spray uses food-grade essential oils like garlic, thyme, clove, peppermint, and rosemary oil to naturally protect plants from fungal disease while also repelling insects without harming them.

This unique formula works well on both tropicals and flowering potted plants as well as herbs & vegetables in hydroponic systems.

In addition, Trifecta Crop Control works great against powdery mildew, spider mites, Russet Mites, Broad Mites Botrytis Grey Mold, Aphids, and more without harming you or the environment.



BOTANOHEALTH Botano Health Natural Organic Fungicide Insecticide Spray Pest Control (33.8 Ounce)

Botano Health Natural Organic Fungicide (Buy Online) is the best fungicide for indoor plants because it contains thyme oil – a natural anti-fungal agent that works against dozens of different types of fungal diseases including powdery mildew, black spot disease, and root rust among others.

Treating your houseplants with this organic fungicide will help you prevent these common problems from occurring so you’ll never have to worry about losing any of your precious greenery ever again. And this product also doubles as an effective insect control spray

Botano Health Natural Organic Fungicide is a powerful plant treatment that will eliminate problems like root aphids or powdery mildew in as little as a few days. And the best part about this spray is that it’s safe to use on both indoor and outdoor plants – even those grown indoors under lights or hydroponically.



Organic Laboratories 810-021 Lab QT Organocide Plant Doctor Systemic Fungicide

The Organocide Plant Doctor Systemic Fungicide (Buy Online) provides protection against two of the most common plant diseases, dampening off and root rot caused by Pythium and phytophthora. This formula is systemic, meaning it travels throughout your plant’s vascular system to promote healthy disease-free plants from the inside out.

Plus, it’s safe for use on all indoor plants including African violets, bonsai trees, orchids, houseplants, and more.



DEBUG – Organic Pest Control for Plants – Neem Oil + Azadirachtin

DEBUG – Organic Pest Control (Buy Online) is an eco-friendly plant spray made with natural ingredients that control pests without harming you or the environment. It contains Azadirachtin, which comes from Neem oil extract derived from seeds of the Indian neem tree (Azadirachta indica).

Azadirachtin is well known as a natural bio-pesticide. However, it also has strong anti-fungal properties that allow it to kill soil-born fungal pathogens along with fungus growing on a plant’s leaves as well.



Garden Safe Brand Fungicide3, Ready-to-Use, 24-Ounce

Garden Safe Brand Fungicide (Buy Online) is the best way to prevent and control fungal diseases on your indoor plants. It’s easy to apply with the included sprayer, so you can quickly treat your whole houseplant collection without having to worry about mixing up a batch of fungicides yourself.

Fungicide3 controls black spot, rust, and powdery mildew on roses; anthracnose, botrytis (grey mold), downy mildew, and scab on many ornamental outdoor and indoor plants.



BONIDE PRODUCTS 775 Ready-to-Use Copper Fungicide, 32-Ounce

BONIDE Ready-to-Use Copper Fungicide (Buy Online) is formulated for outdoor and indoor plants and comes in a convenient spray bottle that makes application simple and effective. It protects your prized houseplants from black spot disease, leaf spots, powdery mildew, rusts, and many other fungal infections without harming your plants or their surroundings.

Most copper fungicides are only available as powders, which means they have to be mixed with water before application. This makes them harder to use and more likely for the user to make mistakes.

BONIDE Ready-to-Use Copper Fungicide eliminates this problem by being pre-mixed in its own container so all you need is an applicator bottle filled with water. All you do is shake up the bottle, spray on affected areas of your plant, then sit back while nature works her magic.



Southern Ag Liquid Copper Fungicide, 16oz – Pint

Southern Ag Liquid Copper Fungicide (Buy Online) will help you keep your houseplants in tip-top shape so that you can enjoy them year-round. It’s specially designed to control diseases caused by bacteria and fungi.

This liquid copper fungicide is made in the USA using premium ingredients including 31% copper ammonium complex (8% metallic copper equivalent). And one gallon makes five gallons of ready-to-use fungicide after mixing it with water



What Causes White Fungus on Indoor Plants

When you see white spots on plant leaves indoors this usually is an indication of a fungus problem. Plants usually suffer from fungal issues when they are kept in a cool damp environment, or if their natural defense mechanisms are compromised due to a nutrient deficiency.



How To Get Rid of White Fungus on Houseplants

White fungus is a common issue for houseplants that can be hard to get rid of. The first thing you should do is identify the type of white fungus on your plant and try to address it accordingly.

One way to determine what kind of white fungus you have, and how best to remove it, is by looking at its texture: fuzzy or smooth?

Fuzzy white fungi will typically be mildew and require a stronger fungicide solution; whereas smooth white fungi will typically be mold and need less aggressive treatment.

If your plants continue to suffer from this problem, here are some ways you can protect your plant from getting white fungus:

  • Identify the type of fungus – there are many different types, so find out what you have
  • Use an organic fungicide to kill off the white fungus on houseplants
  • Remove infected leaves and discard them in a sealed plastic bag for disposal
  • Clean up any remaining spores with a hydrogen peroxide solution
  • Maintain your plant by watering it regularly and rotating its position every few days to make sure it gets enough sunlight and air circulation



Signs of Root Rot in Houseplants

Root rot is a common problem for houseplants. If you notice discoloration on your houseplant’s leaves, wilted or droopy leaves, and/or roots that are soft to touch, it could be root rot. Root rot can affect your plant’s ability to take up water and nutrients from the soil which will lead to yellowing foliage.

Luckily there are some simple steps you can take to prevent this issue which we will briefly in the following section.



How To Prevent Root Rot in Potted Plants

Root rot is one of the most common plant problems. It can be frustrating to see your favorite potted plants start to shrivel up and die, especially since there are many things you can do to prevent root rot in potted plants.

Below you will find some tips on how to keep your plant’s roots rot-free.

  • Make sure the pot has drainage holes
  • Water plants in the early morning or evening so that they can dry out during the day
  • Use a potting mix that does not contain peat moss, which can cause root rot
  • Put gravel at the bottom of the pot to keep soil from sitting in water
  • Never overwater your plant – if you notice any wilted leaves, try watering less often for a while before returning to regular watering habits
  • Allow soil to dry out between waterings
  • Water sparingly, only when the top inch of soil is dry