If you suspect your Monstera is over watered, remove the plant from it’s pot … Black spot leaf disease shows itself first with black spots appearing on the leaf, then with rings of yellow as the spots grow, until the leaf turns entirely yellow and then falls off. I bottom watered the plant recently and left the planter in water for an hour, which was probably a bit too long since the bottom of the soil was really wet. Soon the entire leaf turns yellow and falls. 0 comments. The scale insect will appear flat and round in shape and are very small in stature. Over watering will lead to rot and even death. Feel deep into the soil every few days and allow the roots to dry completely before your next watering. report. You asked about washing the leaves. If left untreated, black spot spreads rapidly and weakens plants severely. The black spots don't wipe off, and they're on the front sides of the leaves, not the backs. Once spots develop, the leaves are damaged forever. hide. This disease appears on leaves as spots in varying sizes. Treating Black Leaf Spot Fungus. 100% Upvoted. One of the most common ways it does this is black spots on the leaves, which could have various causes. Signs that your plant is affected by scale insects is leaf drop or yellowing leaves and white and yellowish spots on the leaves, stems or branches. However, if you catch the signs of over watering early enough, you can save your plant. When spores are carried off and have settled on the leaves, they start reproducing. Brown spots, papery edges, black patches - signs of too much light, being too cold, or too dry. Monsteras *love* misting. The biggest thing that can wreck your monstera’s leaves is over or underwatering. Getting rid of black leaf spot must be a two-pronged attack. It's in a well drained pot, standing on top of a rock bottom wetted to give the plant moisture. Hi, I brought a newly purchased monstera to my office about a year ago. The monstera plant is proficient at providing signs when it’s unhappy. Plants normally get them from air or water splashed on the leaves during watering. It's been growing well, but recently most of the leaves started developing spots -- some worse than others (see pictures). Leaf Spot Diseases. As this has only started the plant should be able to out grow the problem. Too much water is a common cause of black spots on Monstera leaves. I got a mini monstera for my room but I noticed that some of the leaves have been turning gray with black speckles, and some of them getting spots on the leaves. The soil is … Fungi, bacteria, or other pathogens can be the possible reason for the leaf spot disease of a monstera. I observed some shiny oily spots and white pesticide residue on the leaves. share. Mini monstera leaves turning gray with black speckles? 1/2. Cut out dead roots without disturbing the root ball too much. Yellow leaves, weeping edges, slimy patches - these are signs of overwatering and potential root rot. The plant is not right in front of the window, either. It starts with tiny black spots on leaves, no bigger than a pinhead. Getting to the root cause of these spots will allow you to take the necessary steps to restore the health of your monstera. Scale insects will mainly attack your monstera’s stem and leaf joints over its foliage. The worst part is, those leaves will not heal from those spots. As the fungus develops, those black spots on leaves are ringed with yellow. My office gets direct sunlight, albeit through four panes of glass. As a soil-borne fungus, it's present at all times, even deep winter. Black and soft or mushy are dead roots and indicate the problem is root rot. My Monstera Deliciosa has developed these black spots over the last 2-3 weeks. save. 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