Once this is done, your Monstera plant is on its way to thriving without a problem. This not only stops the burning, thereby removing the chances of the leaves developing black spots, but it also allows your plant to grow sufficiently without any obstacles. dieffenbachiae: Purchase plants free from the disease. View our article on how to make monstera plants grow quicker. Nutrient deficiencies can cause spots on Monstera leaves. Bacteria that are particularly invasive in warm and wet environments are the major cause of this disease. Remove and destroy the affected houseplant as the fungi thrive on decaying plant matter. Often these spots are uniform in size and have a yellow “halo” surrounding them. Begin typing your search term above and press enter to search. Root rot is exactly what it sounds like: when your plantâs roots begin to rot due to sitting in water for too long. Due to this, soaking the soil in water for a few days will allow rehydration of the plant and provide the soil with the ability to hold water proficiently. Young leaves are extremely delicate and can scar easily. Black spots on Monstera can be caused by too much misting Plants donât like getting their leaves wet â it cause the leaves to rot (which will lead to black spots) or itâll lead to fungal and bacterial diseases (again which will lead to root rot). Reduce your watering frequency and move the plant to new, dry soil. Cut off affected leaves. Why is my monstera drooping? These pests can be hard to spot initially and are difficult to get rid of. If you do not want to invest in a humidifier, keeping your plants in the kitchen will expose them to sufficient humidity. Move the plant further away from the window, and increase humidity with a humidifier. Well-meaning plant parents can love their plants a bit too much by over watering, which causes root rot. This will effectively remove the black spots from your Monstera. Check that the soil feels dry, and water your plant a little more than usual. When spores are carried off and have settled on the leaves, they â¦ As mentioned earlier, black spots on monstera leaves are a result of fungal or bacterial disease. Split leaf philodendron, Swiss cheese plant, or windowleaf (Monstera deliciosa) is a tropical plant native to rainforests of Central America. Can Monstera Live Outside? Do not get discouraged, because it is possible for Monstera to bounce back! Monstera are hardy houseplants and can bounce back from tough conditions. Check that the plant has not outgrown it’s pot, as that could lead to underwatering. Prevent bacterial and fungal diseases by keeping your Monsteraâs leaves â¦ This appears as fuzzy, gray â¦ Sprouting Indoors | Succulent, Cactus and Houseplant Tips, Learn Houseplant Care Tips to Grow Healthy Plants. Repeat this process once every few days for a few weeks to completely remove the infestation. It's in a well drained pot, standing on top of a rock bottom wetted to give the plant moisture. Give the plant a few days to acclimate to it’s new container before watering again. Same as above cut down humidity completely. Do not like direct sunlight. Bacterial Leaf Spot: Translucent spots on leaf margins become reddish-brown with yellow halos. The curling yellowish leaf in photo #4 is a new leaf unfurling; it will mature to the darker green shade as it ages. Learn more about general Monstera adansonii care here. If every other cause behind the black spots is unlikely, a fungal or bacterial disease is the last resort. This essentially causes the leaves to rot, thereby allowing the growth of black spots. Move your Monstera farther away from the window if the leaves are burning. Add a few handfuls of perlite or gravel to increase drainage. The best way to avoid this is to simply avoid over-watering your monstera. Do not keep in temperatures below 60 °F (15 °C). The leaf in photo #6 looks perfectly fine and normal to me. If you notice the leaves are turning light brown and looking “crispy”, your plant probably needs a drink. If your Monstera is outside, place it under a porch so that it is shielded from the very bright mid-afternoon rays, but still receives some sun. This is a symptom of bacterial leaf spot disease. Because bacteria are spread by water, dry environmental conditions help slow disease transmission, but may also cause spots to turn reddish brown. Wash out the pot with soap and water and fill it with fresh, new potting soil. Make sure the pot has holes in the bottom for drainage. Outdoor plants are not usually susceptible to infestations. Indoor monstera plants may attract mites and scale insects. Dark brown spots on leaves with a yellow border: If the spots are similar in size and have a sticky ooze this is a bacterial leaf spot condition. Large spots are tan and irregularly shaped. Bacterial and fungal diseases can cause leaf spots on Monstera. Using a clean pair of scissors, remove any mushy dark brown or black roots, as these are rotten (healthy roots are light tan). Monstera’s ideal conditions are summarized below: 7 common causes of black and brown spots on Monstera are: If you start to notice problems in your plants, check for additional clues about the cause: Have any more questions about black spots on Monstera I did not answer? Most plants do not react well to getting water on their leaves. Cold temperatures are one of the most common causes of black spots. This conflict can be resolved by placing your plant in a room that is exposed to a sufficient amount of bright and indirect light. Move the plant to a container that is about 2 inches wider in diameter than the current one. I thought I would keep an eye on it but it seems to have rapidly spread and is now larger on the two initial leaves and has â¦ A variety of circumstances can cause this as already listed such as excessive misting, lack of immunity caused by cold temperatures, overwatering of your planets, and so on. If you do not have a humidifier, increase humidity by placing a tray of water near your plant. Many ornamental and edible plants display dark, necrotic looking spots on their leaves. Leaf spots â Fungal leaf spots may include small brown spots with yellow margins or black spotting. Make sure your Monstera leaves are not directly touching the windows, as this damages them further. Botryotinia fuckeliana [teleomorph] A Myrothecium leaf spot Myrothecium roridum: A Phytophthora stem rot Phytophthora nicotianae var. Bacterial and fungal diseases can cause leaf spots on Monstera. Bacterial leaf spot on plants will discolor, and in extreme cases, kill leaves. It is possible that the cold weather compromises the immunity of the plant and thereby attracts various fungal diseases. You can achieve this by either keeping the room warm or moving your plant to a warmer spot. The soil is a bit moist but not too much i think. Move the plant closer to the window for quicker drying. As water evaporates into the atmosphere, it provides the houseplant with needed humidity. Juvenile Monstera leaves will have no slits or holes, looking more like a heart leaf philodendron but as the leaves mature, they will gain more holes â¦ As with all other fungal and bacterial diseases, better air circulation, well-drained soil, dry leaves, and less water help control Leaf Spot â¦ Prevent bacterial and fungal diseases by keeping your Monstera’s leaves dry. Bacterial Leaf Spot These are small and dark brown spots with a yellow border appear in the leaves of the Monstera adansonii. If the Monstera is root bound, the soil dries out faster because there is less material to hold water for the plant. These circumstances can cause the leaves to scar with ease, thereby leaving spots.Â. Spots tend to be similar in size, and often exhibit a sticky ooze. In Florida there have been reports of serious damage to foliage caused by grasshoppers. If these starts to appear, all you need to do is take some precautionary measures and rectify the source of the problem. Bacterial Blight Philodendron selloum On the other hand, black spots on Monstera can also be caused by under watering. Prune the damaged leaves on the Monstera and plant in the new soil. Hi 12orange12, I think you have a bacterial leaf spot - the yellow edges around the spots are the giveaway that its a bacterial infection rather than fungal. If you have been fertilizing once a month, nutrient deficiency is an unlikely cause. Everything You Need to Know! If you suspect your Monstera is over watered, remove the plant from it’s pot and clean off the roots. Leaf Spot. If your Monstera is in direct sunlight, the brown and black spots may be due to sun burn. One of the most common ways it does this is black spots on the leaves, which could have various causes. Botrytis â Botrytis, or gray mold, is another disease brought on by fungi. Then spray your Monstera with neem oil, rubbing alcohol, or an insecticidal soap. Spraying the plant with a diluted horticultural oil or soap can be an effective treatment. â¦ Once the root cause of the black spots is removed, your Monstera plant will recover efficiently on its own. In some cases, the soil of the plant may become hydrophobic, thereby dissuading the plant from absorbing any water. Despite this, the monstera is quite durable against these conditions, and a few easy steps can have it on its way back to good health. 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