See photos below. Treating Black Leaf Spot Fungus. Mini monstera leaves turning gray with black speckles? Getting rid of black leaf spot must be a two-pronged attack. Leaves turning yellow, brown, or black. I've had my monstera for a few months and noticed these black spots on one of the leaves, that particular leaf is also not looking as healthy as the others and is a slightly darker green. It looks like your plant has a bacterial plant disease called leaf spot. 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. When there are a few spots on a leaf and they begin to grow, they will eventually join together and become a large blotch on the leaf. report. The spots don't appear to be extensive. If left untreated, black spot spreads rapidly and weakens plants severely. The second reason is that this tropical plant is planted in the wrong soil. Put the plant in cool, dry location (no more than 70°) with bright indirect light Very few houseplants should be placed in direct sun. 1/2. 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. As the fungus develops, those black spots on leaves are ringed with yellow. Soon the entire leaf turns yellow and falls. Hi! It's in a well drained pot, standing on top of a rock bottom wetted to give the plant moisture. If you see yellow or brown leaves on your Monstera, you may be overwatering. With big, beautiful split leaves, there’s a reason why our Monstera Deliciosa is a best-seller. SHOP NOW. Over watering can lead to ugly dark brown spots on your leaves, and underwatering can cause light brown spots and dry, crispy leaves. 100% Upvoted. As a soil-borne fungus, it's present at all times, even deep winter. (For more info, read 4 Signs Your Monstera Is Over-Watered here.) I’ve also noticed a couple new leaves have a tiny black spot at the point of the leaf. My Monstera Deliciosa has developed these black spots over the last 2-3 weeks. pingpating Jun 10, 2019 12:26 PM CST. Once spots develop, the leaves are damaged forever. Leaf spot is a blemish that is found on the leaves of a plant that is normally caused by a fungus. I purchased my monstera plant from a local nursery about a month ago and i’ve Noticed some leaves have black edges or black spots. I need … 0 comments. In summer, Monstera should be removed from the southern place, as it is a tropical plant growing in the shade of large trees. If you notice dark brown spots on your monstera leaves, this might indicate that your plant’s roots are rotting due to over-watering. The … Common problems with Monsteras. The black spots don't wipe off, and they're on the front sides of the leaves, not the backs. Overall your Monstera looks pretty healthy, although it appears that it is getting less than optimal light. Yellowing leaf monsteras. Ask a Question forum: Black spots on my monstera. Eventually the whole leaf will … The worst part is, those leaves will not heal from those spots. The biggest thing that can wreck your monstera’s leaves is over or underwatering. The pot is pretty large and you need to be careful to allow the top inch or so of soil to get quite dry before watering. 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. Views: 19037, Replies: 3 » Jump to the end. save. Darken (blacken) The leaves turn black when the plant strong root problems due to constant plant flooding. hide. share. Cut off the diseased leaves and then wash the scissors in a bleach solution. Leaf Spot Identification. WA. It starts with tiny black spots on leaves, no bigger than a pinhead. 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