Aphids. That's a good thing too, because I've got the answers! They are always pleased to find out that this white fuzz is nothing to worry about, in fact, it’s the sign of a healthy, happy air plant. What is White Mold on Plants? Powdery mildew or white fuzzy mold on plants is commonly caused by the fungal pathogen Podosphaera xanthii. 1. They pierce the plants and suck the juices. The mysterious white fuzz are called Trichomes. Customers often email and call us about an unusual white, fuzzy substance on the leaves of their new air plants. White fuzzy mold isn’t any good on the cheese in your fridge, and it’s almost as frustrating to see in the containers of your plants. This mold has been known to attack more than 360 species of plants, including vegetables and garden flowers. White Fuzzy Mold on Plants. All is fine and dandy until you wake up one morning to discover that your favorite potted plant is growing fuzzy, white mold. Although its presence can indicate a problem with watering, it does not necessarily mean that the plant itself is sick or that it is going to die. check for other plants that may have it too; Mealybugs can be difficult to control as the white "cotton" prevents most control agents from reaching them. Aphids, scale, and mealybugs are common culprits. You can treat this with several different organic methods which should get rid of the mealybugs. I need help identifying a white chalk-like fungus or substance of some kind that consistently seems to plague certain plants that I grow in my house. This white fuzzy “mold” is actually a fungus. If the stickiness is associated with waxy white blobs, your plant has mealybugs. That stuff is probably a harmless saprophytic fungus. Especially if you’re growing herbs or other edible foods, but rest assured it’s easy to fix and can be prevented. In the outdoor, white mold is a common name of Sclerotinia sclerotiorum, a type of parasitic fungi that attack plants. Affected plants often form puckered leaves, show stunted growth and can die without treatment.Moreover, the honeydew (a sweet, sticky substance secreted by aphids) promotes the growth of sooty mold and attracts ants, which protect the aphids because they want the honeydew. More details on their control are here. White powdery mildew is one of the few fungi's that do not spread by water, in fact; it makes it much harder for the mildew to grow. It is critical to spray the plant with soap and water or neem oil at least three times. Worried, you run to Google, type in "moldy potting soil," and end up here. But, at some point, you notice a fine coating of fuzzy white mold on top of the roots. If you’ve ever owned a houseplant, then it is likely that you’ve come across white mold growing on top of the potting soil. When in a pinch, spraying you plant down with water will make you plant less of an ideal environment for this mildew to grow, which can help stop the spread. The fungal disease creates a powdery white growth on plant leaves and stems. However, this type of mold can often be mistaken with the mealybug infestation so, don’t rush to conclusions. Word Root: These insects feed on your plant and create this white fluffy looking stuff on your plant. White, Fuzzy Growth in Potted Plants . These 1/6-inch pear-shaped creatures pierce plant tissues to suck out sap. spraying water on your plant can be a quick fix. These insects look like little tufts of white cotton and attach themselves to plant stems, the undersides of leaves, and the places where leaves join the main stem. At the start, the white mold looks like powdery spots. They can multiply quickly and they leave a sticky residue behind which will start to grow a black fungus. 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