Leaves of established plants yellow and die. Pothos houseplant leaves turn yellow and brown and dry for a variety of reasons: when grown in too little light, an irregular watering pattern, or the plant is sitting in water and may be the beginning of root rot. Bella Blue Bell, Apr 3, 2013 #1. 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. Pseudomonas cichorii: Avoid overhead watering. Now it is getting brown dead spots on some leaves and I don’t know why. As for the brown stem, it looks like a cutting was taken at this location and the stem has stopped growing. Pothos like to have their soil dry out completely between waterings. Mealybugs, aphids, thrips, and scale are the other common culprits. Other sap-sucking pests can cause brown spots on houseplant leaves. How to Treat Leaf Spot Fungus. Brown spots on leaves and stems of Pothos "marble Green My marble pothos has brown spots on the leaves and stems. Pythium Root Rot: Cuttings have poor root systems and yellow leaves. I'm wondering if eventually they leaves will get weak. Black spots on the leaves and the sudden collapse of the plant indicate the soil has been kept too wet. However, if it's anything like mine, you'll get new growth stems from the node at this location! Sometimes, people even do underwatering and Overfertilization. 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 … Watching plants slowly wilt and die after their stems turn black leads to frustration and anger. 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. I have a couple if Pothos plants above my kitchen cabinets. For houseplants, isolate the pot immediately to prevent the fungus from spreading. Usually if the problem is over-watering the entire plant will turn yellowish - if the problem So totally healthy!! We have white lights above the cabinets to give us more light in the kitchen. These can cause brown leaf tips in Pothos. The leave look fine. It's a really thin cocoon and is expected to get brown and crispy. The brown on the leaves is where each stem came from. As your Pothos starts to trail, you’ll notice small brown bumps on the stems. The spots are usually in the center of the leaf with some of them at the edges. Hi Everyone, I have a pothos that started as cuttings in a vase and eventually rooted over about 5 months. What can I do? As soon as you see plant leaf spots, treatment begins. My pothos was moved from a screened in patio to indoors last November to protect it through winter. 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. It has been growing very consistently and didn’t seem affected by the change at first. 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. Centers of the spots fall out under wet conditions. 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. What would cause this? Be sure to keep the leaves out of the water. Easy to get and hard to eradicate, blight can quickly ruin one plant or a whole garden full. My Pothos plants recently at the stems are spitting and turning brown. Those are the emerging roots. 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