The white stuff on cuttings is usually a good sign, often callus tissue, root nubs, or biofilm** (a protective layer from healing/minerals), indicating successful rooting, but it can sometimes be a sign of fungus/mold if it's fuzzy or smells bad. Normal white growth is part of the plant healing and forming roots, while mold indicates excess moisture or poor airflow, requiring cleaning or different conditions.
That's perfectly normal for cuttings. From experience, it seems to be a film that forms around new roots, like a protective later of mucus.
The white mold you're seeing is powdery mildew. It occurs more frequently on plants growing in high humidity and still air. But some plants always seem to get it, no matter what you do. Mold fungi spread by tiny spores floating in the air and falling on a susceptible plant in conditions favorable for germination.
White mold, also known as Sclerotinia stem rot, is a serious and typically lethal fungal disease that affects over 400 species of plants in many plant families.
If you're having problems with mold on your cuttings, it's not the method, it's because your cuttings are not clean. You need to wash them in warm water, dish soap and scrub them with a clean sponge. And then spray any spot mold with 70% isopropyl alcohol.
But straight water is its enemy because it washes off the spores before they have time to embed. However, water isn't something that I promote for control because wet foliage is friend to many other plant diseases. If you're going to try this option, do so early in the day so foliage has time to dry out quickly.
To save a plant from white mold, you can start by removing the affected parts of the plant and disposing of them properly. Improve air circulation around the plant by spacing them out if possible. Avoid overhead watering, as moisture promotes mold growth.
Is White Mold Dangerous? Make no mistake, white mold has its health risks, but it's just as dangerous as any other color of mold. Continued exposure to any kind of mold can pose a serious threat to your health with symptoms including headaches, nausea, dizziness, allergies, and respiratory infections.
Vinegar typically performs best on mold when it is used undiluted in full strength. Simply transfer the white vinegar into a spray bottle. Spray the vinegar directly onto the mold. Do not rinse or scrub.
White mold is contagious, which means it can spread quickly to other plants if left untreated. While some white powder is generally harmless, it can become a bigger problem, the more it spreads.
Powdery mildew fungi attack young foliage, stems, flowers, and fruit. Small white powdery spots will be visible on the surface of the host tissues. These may remain as distinct colonies or the fungus may ramify completely across the plant organ affected.
White mold typically appears as a fuzzy or powdery texture. It can look fluffy and sometimes produces a light, feathery layer over an area. It is usually white early in its growth, but it can develop into gray, black, or green shades over time.
Remedy 1: Baking Soda and Soap or Oil Spray
The combination of baking Soda and Oil Spray is great for treating powdery mildew and many leaf fungi. Baking soda (sodium bicarbonate) alters soil surface pH, creating conditions unfavorable for fungal spores to germinate.
Baking Soda Spray: Mix one tablespoon of baking soda, half a teaspoon of liquid soap, and one gallon of water. Spray this solution on affected plants weekly. Milk Spray: A mixture of one part milk to nine parts water can help reduce the spread of powdery mildew. Spray it on plants every 7-10 days.
How do you know if a plant has root rot? The first signs of root rot will be above ground. As the roots stop functioning, your plant will start to yellow and wilt all over. If you have a plant that's made up of several stems in the same pot, it's possible only one stem will get root rot.
High humidity and overwatering promote growth of powdery mildew.
White vinegar is a mild acid known to kill roughly 82 percent of mold species, and it can even help prevent mold outbreaks in the future. Vinegar can kill mold, while bleach cannot because vinegar has antifungal and antibacterial properties. The acetic acid that is present in vinegar has a decently strong pH of 2.5.
What you have to do is drain all the water from bath tub, turn on the bathroom fan and close/shut the door completely and just leave it every time after you take the bath. Believe or not you won't have molds.
The plant known for removing a high percentage of airborne mold is English Ivy (Hedera helix), which studies suggest can filter up to 78% of airborne mold spores within 12 hours, along with other toxins like formaldehyde and benzene, making it excellent for humid areas like bathrooms or basements. Other plants, like Peace Lilies and Boston Ferns, also help control mold by absorbing excess moisture and spores, improving overall indoor air quality.
Inhaling or touching mold or mold spores may cause allergic reactions in sensitive individuals. Allergic responses include hay fever-type symptoms, such as sneezing, runny nose, red eyes, and skin rash (dermatitis). Allergic reactions to mold are common. They can be immediate or delayed.
Some of the easy DIY methods to get rid of white mold are as follows: Bleach it away with a mixture of bleach and water applied with a brush to the affected areas. Mix 1 tablespoon of bleach with 2 cups of water, then use a sponge to wipe the affected area until it is spotless.
White mold grows when excess moisture is present in homes. Moisture buildup is often caused by rain or snow, overflow from a plumbing leak, or a basement flood. It's also often caused by lack of dehumidification.
Sunlight appears to directly inhibit the development of this surface-growing, unpigmented fungus. Two aspects of sunlight exposure that appear to suppress the fungus are increased UV radiation exposure Research Focus 2010-2: Cornell Viticulture and Enology 5 Page 6 and higher leaf surface temperatures.
Cinnamon for mould on plants
Spraying a mixture of ground cinnamon solution and water onto infected plants can be an effective way to alleviate the symptoms of fungal infestations. How to use cinnamon against mould on plants: 1 teaspoon of ground cinnamon.