Now it is getting brown dead spots on some leaves and I don’t know why. Bacterial Leaf Spot: Water-soaked spots with yellow halos spread rapidly on leaves. Easy to get and hard to eradicate, blight can quickly ruin one plant or a whole garden full. Sometimes, people even do underwatering and Overfertilization. Pothos like to have their soil dry out completely between waterings. I'm wondering if eventually they leaves will get weak. Be sure to keep the leaves out of the water. I noticed brown spots on two of the leaves before I repotted the plant in September and thought it was due to the plant being too close to the window so I didn't really think it was a problem. How to Treat Leaf Spot Fungus. The leave look fine. It has been growing very consistently and didn’t seem affected by the change at first. Usually if the problem is over-watering the entire plant will turn yellowish - if the problem Other sap-sucking pests can cause brown spots on houseplant leaves. As for the brown stem, it looks like a cutting was taken at this location and the stem has stopped growing. You can see me pointing at the nodes in the video in case you don’t know what they are. Centers of the spots fall out under wet conditions. So totally healthy!! We have white lights above the cabinets to give us more light in the kitchen. We have a quick answer to this question. Here’s what to do: remove enough bottom leaves off the stems so you can get them in water. My Pothos plants recently at the stems are spitting and turning brown. Leaves of established plants yellow and die. The spots are usually in the center of the leaf with some of them at the edges. As your Pothos starts to trail, you’ll notice small brown bumps on the stems. Let the plant tell you when to water—when it starts to droop, it needs a good drink. Pythium Root Rot: Cuttings have poor root systems and yellow leaves. Watching plants slowly wilt and die after their stems turn black leads to frustration and anger. Brown spots on leaves and stems of Pothos "marble Green My marble pothos has brown spots on the leaves and stems. moderator's note: added a more descriptive title to topic . Blight is the all-purpose name for a number of fungi in the soil that affects plants in this way. What can I do? No matter how diligent you are, the day will come when those tiny brown circles appear on the leaves of your plant so it’s important to know how to treat leaf spot fungus. Pseudomonas cichorii: Avoid overhead watering. However, if it's anything like mine, you'll get new growth stems from the node at this location! It's a really thin cocoon and is expected to get brown and crispy. If left continually in damp soil, the roots will rot. It is ‘Overwatering.’ A research says that the maximum number of people who get their Pothos leaves with the bacterial disease, brown spots, and brown leaf tips are mostly overwatering their plants. As soon as you see plant leaf spots, treatment begins. Discard infected plants. I have a couple if Pothos plants above my kitchen cabinets. For houseplants, isolate the pot immediately to prevent the fungus from spreading. All these bugs feed by sucking the sap from the leaves and stems of your houseplants, damaging a small area around where they feed, causing brown or yellow spots … Those are the emerging roots. These can cause brown leaf tips in Pothos. Bella Blue Bell, Apr 3, 2013 #1. My pothos was moved from a screened in patio to indoors last November to protect it through winter. What would cause this? Black spots on the leaves and the sudden collapse of the plant indicate the soil has been kept too wet. Mealybugs, aphids, thrips, and scale are the other common culprits. 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