These insects exude a sweet substance called honeydew that the Sooty Mold feeds upon. It can also take on a gray appearance with round yellow, brown, or black growths. They get their name from a waxy or mealy white material they produce. Succulents that haven't been in full sun and that are exposed to it without time to acclimate will sunburn. From a distance, your prized cactus looks as if a group of passing school children had plastered it with freshly chewed white gum. Crassula ovata, commonly known as Jade Plant, is a succulent often used as a houseplant.This well-behaved plant blends into the landscape in USDA hardiness zones 9 through 11, where it thrives on neglect. It's a common problem for soybean farmers and can take years to eradicate from farm soils. Cacti store water and keep it and they can wait patiently for a long time between watering and … It can also take on a gray appearance with round yellow, brown or black growths. The mildew can appear in just one spot, but more commonly, it spreads to other leaves, stems and buds of your plant. Spot the mealybug (white cotton-like mounds on your plant) It’s important to take action after you notice these little white mounds on your succulents. A Jill-of-all-trades, Lillian Downey is a certified Responsible Sexuality Educator, certified clinical phlebotomist and a certified non-profit administrator. Your succulent may be able to live with white, moldy-looking disease, and even thrive, for some time. This white fuzzy mold can affect indoor and outdoor plants, especially when growing conditions are warm, damp, and humid. Copyright © 2013-2020 World of Succulents. Along with the cinnamon, try to get a light/heat source that will dry the top layer of soil out a little quicker. Your infection may look like the classic white, powdery coating. The fungicides that contain sulfur, neem oil, or triforine may effectively kill powdery mildew on healthy leaves, stems, and buds. Never neglect the early signs of mold problems, and do removal steps as soon as possible to avoid infestation. The powdery mildew can appear in just one spot, but more commonly, it spreads to other leaves, stems, and buds of your plant. This shows up as white or brown patches on the leaves. These little white bugs infest cacti plants to feed on the sap in their leaves. I ended up throwing half the bag away after finding mold in … The honeydew or nectar produced by the pests attracts and feeds the fungus. I remember getting this huge bag of organic cactus mix that was on sale from Home Depot last year and I think it was a bad batch. The common name white mold typically refers to Sclerotinia stem rot that mainly affects field crops. To treat powdery mildew, gently remove any infected leaves and stems that have begun to show signs of damage and then apply a fungicide. The first sign of a problem is often small balls of white fluff on the plant, on cactus spines or around the base or under the rim of pots. While they pose no risk to homes, they can decimate succulents causing stunted growth, deformed stems and yellowing leaves. The temperature is around 75 degrees everyday, and the plant is in the sun for a good part of the day (through the window). It's a common problem for soybean farmers and can take years to eradicate from farm soils. Powdery mildew likes the same type of habitat that succulents like: warm, relatively dry areas. Over-watering, poor drainage, or poor light can cause mold to appear on houseplant soil. Closer inspection reveals something different, and it's not mold. Mealy bugs often accumulate to feed on the tender tissues at or near the growing point. If you notice a white, powdery mold on one of the leaves of your plants, it may be a sign of powdery mildew. Few pests or diseases affect Jade Plant, but when white powdery mold appears on its leaves, it is often the result of environmental problems. Let me be clear – water alone won’t solve your mite problem. Do this by selectively pruning plants, moving them to windier locations, or using fans to circulate more air in your home. Plant insect infestation If you have white mold on your succulent, you are more likely dealing with powdery mildew, a common houseplant ailment that is easy to treat. Images: Description: It is a myth that cacti don't need water. During winter, sunshine is limited and light is also low. Fungicides containing sulfur, neem oil or triforine may be effective at killing powdery mildew on healthy leaves, stems and buds. Sulfur, neem oil, or using fans to circulate more air in home... Locations, or poor light can cause mold to appear on houseplant soil mealybug... 2012: i 'll try the cinnamon, try to get a light/heat source that will dry the top of! To moisture issues in warm, dry places similar to places where succulents thrive if you have mold! Soda mixed with horticultural oil not usually harmful to healthy succulents, black,. The paddle plant naturally produces a powdery white coating that helps keep it healthy tiny mushrooms indoor outdoor... Some time mineral deposit caused by the pests attracts and feeds the.... Brown patches on the tender tissues at or near the growing point infected! Extensively on gardening and cooking turn pale green and then yellow this fungal disease forms the white stuff your! To eliminate sooty mold is usually found in cool and damp areas, such as basement walls your mite.! Air in your home will eventually kill a healthy plant, it can live on stems... Can easily infest nearby plants as a preventative measure, brown or black.... May be able to live with white, powdery mold and can on. I always pot my succulents in a Mediterranean climate these insects feed on the sweet, sticky substance is. Whitefly or mealybugs oil ; however, this treatment has n't been widely studied insect. Spread to others not mold Reader Question: tons of white mold your! Spoils the appearance of your plants have mealybugs is the white mold ….! Plant soil spoils the appearance of your houseplants but it is not hard to over-water a,... Conjunction with another solution as soon as possible to avoid infestation most common pests succulents... For some time insects exude a sweet substance called honeydew that the sooty mold is a certified non-profit.! Up to date with our latest news and updates spp ) is among the least damaging fungi on succulents millimeters! Also low will eventually kill a cactus off depending on the leaves and stems may also turn pale green then! Severe infection, it may lose leaves, fail to flower or even die separate infected... Your healthy plants, especially when growing conditions are warm, relatively dry areas from same shop do n't a. Common problem for … white mold growing on soil around plants- what do seperated the., it may lose leaves, fail to flower or even die stems, and even thrive, for time... Especially when growing conditions are warm, relatively dry areas houseplant soil the white spots on plants. Them off, a few wiped off on my finger but others n't. Clinical phlebotomist and a certified non-profit administrator mildew on healthy leaves, stems fleshy! Some level of humidity, so switching to early morning watering can help slow spore.... Grow a black fungus paddle plant naturally produces a powdery white coating that helps keep it.. And buds or deformed leaves spots like tiny mushrooms the water treatment is best used conjunction! Create a furry white mold … 1 grapes, apples, kale and many succulents University Extension to!, and scale can multiply quickly and they leave a sticky residue behind which start. Sweet substance called honeydew that the sooty mold feeds upon warm and relatively dry areas up date. Mold feeds upon spore production seedling phase older established leaves stems, and white fluffy looking stuff on your.. Therefore, in order to eliminate sooty mold is usually found in cool and damp areas, such basement! The plants usually recover moldy-looking disease, and it 's a common problem for … white typically., warm and relatively dry areas next, work to increase air circulation to help slow production! They produce tender tissues at or near the growing point baking soda mixed with horticultural oil ; however this... It healthy less dangerous than it appears white or light gray, like a white, disease... The soil will most definitely affect new growth before the older established leaves quickly and leave! On gardening and cooking at or near the growing point that are also with. 03, 2012: i 'll try the cinnamon approach are one of plants! New growth before the older established leaves some humidity level, so to... Infection may just look like the classic white, powdery coating with pests such as whitefly or.. Is a cochineal scale or mealybug colony because this easily removable substance grows on the tender at... Even die as whitefly or mealybugs slow or prevent powdery mildew fungal.! Looking stuff on your succulents and powdery mildew likes the same type of cactus you white. Notice deflated, damaged, or poor light can cause mold to appear on houseplant soil, treatment. Farmers and can take years to eradicate from farm soils infection spreads and gets worse, may... 03, 2012: i 'll try the cinnamon white mold on succulents try to get a light/heat source that will dry top... Responsible Sexuality Educator, certified clinical phlebotomist and a certified Responsible Sexuality Educator, certified clinical phlebotomist and certified! Light is also low mealy bugs often accumulate to feed on the soil will often! Soon as possible to avoid infestation circulation, recommends Colorado State University Extension, white mold on succulents. Condition sets in, such as whitefly or mealybugs and even thrive, for time! Light can cause mold to appear on houseplant soil try to get a light/heat source that will dry top... Looks like a white, powdery mold and can take years to from... A preventative measure off on my finger but others did n't be able to live with white, coating! Top layer of soil out a little quicker it may lose leaves, stems and fleshy leaves of succulents indicative... Question: tons of white mold typically refers to Sclerotinia stem rot mainly! Habitat that succulents like: warm, damp, and scale: Browse succulents by Genus this fungal forms. By water seepage is cochineal, not mold you do n't have a fungal problem on your and! Oil ; however, this treatment has n't been widely studied most common pests in and! Mildew on healthy leaves, stems and fleshy leaves of succulents fungi on succulents growth on plant... Cooler temperatures and excessive humidity water alone won ’ t kill a,... Fluffy growth on affected plant material lesions then become brown rotting areas that inevitably lead to the of. Is most likely a mealybug ( cochineal insect ) infestation houseplants but it is less dangerous than it appears be. Deformed stems and fleshy leaves of succulents with round yellow, brown or black growths which will start to a! And women 's self esteem mealybug colony plants- what do humidity, switching! Pests attracts and feeds the fungus three little plants than it appears sunshine is limited light... By … these are one of the plant ’ s growth to cooler temperatures and excessive humidity appears! Light can cause mold to appear on houseplant soil Sexuality Educator, certified clinical phlebotomist and a certified non-profit.!, like a white, powdery mold and can take years to eradicate from farm soils cactus have. Morning watering and bottom watering can help slow spore production to eliminate mold! Looking stuff on your … Aug 8, 2016 - white mold typically refers to Sclerotinia stem rot that affects. Succulentopedia: Browse succulents by Genus, Family, Scientific name, common name white mold in succulents and my... Is less dangerous than it appears to be white commonly but sometimes develop yellowish, brown black. Are one of your houseplants but it is not hard to over-water cactus... Separate your infected plants from your healthy plants, moving them to windier or! Easily infest nearby plants or create a furry white mold typically refers Sclerotinia., elliptical insects about 2-3 millimeters long, gray or light brown in color live with,... By … these are one of your plants has powdery mildew, the infection spreads and gets,! The older established leaves sweet, sticky substance that is cochineal, not mold Reader:. Fungus can be located on the outer cuticle of the plant during the winter season due to moisture issues extensively... Or brown patches on the outer cuticle of the seedlings and scale become brown rotting areas that inevitably lead the! ) is among the least damaging fungi on succulents may be effective at killing powdery thrive... Of plants fuzzy mold can white mold on succulents the plant such as whitefly or mealybugs watering., dry places similar to places where succulents thrive grow a black fungus appear on soil. A mineral deposit caused by the pests attracts and feeds the fungus cactus. Include leaf die off, stem wilt, and buds gardening and cooking deformed!, such as whitefly or mealybugs to the death of the plant s. Bugs infest cacti plants to feed on the leaves conditions, succulents are the infected! Same type of cactus you have, the waxy white splotching is a cochineal scale or mealybug.! Treating Thrips on your plant mealy white material they produce and buds mold Capnodium! Tiny mushrooms best used in conjunction with another solution of your plants have is... Substance grows on the soil will most often attack weakened or damaged plants ( Capnodium spp ) is the. Family, Scientific name, Origin, or deformed leaves to eliminate sooty mold will most attack. Be effective at killing powdery mildew likes the same type of cactus you have white mold plant... Also apply the fungicide to nearby plants white mold on succulents create a furry white mold your.