Most fungicides are not effective in treating either basal or root rot. Basal rot is caused by the fungus Rhizoctonia solani. Control stem rot in the sedums by cutting away and destroying all the diseased or symptomatic plant parts. This fungal disease is most prevalent during humid conditions when there is little rainfall. Powdery Mildew. Terry has written articles and publications for a wide range of markets and subject matters, including Medicine & Health, Eli Financial, Dartnell Publications and Eli Journals. Register today The fungus may have moved into the planting bed during wet spring weather. Pets and Insects. The roots are healthier and establish themselves much sooner than the container plants.The cost is usually less as well. Initially, we had no sample to provide a positive diagnosis. Several different leaf spot diseases can infect sedums, including those caused by the fungal species Cercospora, Colletotrichum and Septoria. Don’t worry – we’re going to discuss how to identify root rot, how to treat it, and how to prevent it. See: Greenhouse Plants, Ornamental-Pythium Seed Rot, Damping-off, and Root Rot Cause Pythium sp. Jan. 13, 2021 Register today Privacy Policy  | and Phytophthora sp. Learn which plants thrive in your Hardiness Zone with our new interactive map! Sedums are low-maintenance plants that are susceptible to only a few fungal diseases, most of which are prevented by planting the sedums in well-draining soils. Many different types of sedums exist, some growing to only 2 inches tall and others reaching 2 feet or larger in height. Basal rot is caused by the fungus Rhizoctonia solani. This was during a period of little rain and I haven't watered them. have numerous Autumn Joy sedum. Stem rot disease is caused by the fungus Sclerotium rolfsii and is one of the most common diseases that affect sedums. Sedums are susceptible to crown rot. You also can take a single leaf, nick the outer edge with a sharp knife in several places, dust the nicks with rooting hormone, then pin the leaf flat onto the potting soil.  Register today fungi) causes white powdery spores to cover the sedum’s leaves. If your sedums are already infected with gray mold, apply an approved fungicide like thiophanate-methyl. Plants growing in poorly drained wet soil are most often affected. I can pull them out and there are no roots. until 12/31/20. Growing Edibles Indoors Several different leaf spot diseases can infect sedums, including those caused by the fungal species Cercospora, Colletotrichum and Septoria. This fungal disease causes the damage you described. Dust in some Sulfur. Jan. 20, 2021 Stem rot causes the sedum’s lower leaves to turn yellow and white, cotton-like growths of mycelium to appear around or near the crown on the soil. The extremely hot and dry weather in summer can further stress the plant making it more susceptible to this disease. Sedum (Sedum spp.) Root rot is the bane of many succulent enthusiasts' existence. Houseplants - Tips for Success Leaf spots appear as lesions or as decomposing or necrotic patches on the sedum’s leaves and occur most often during wet conditions. Eventually, the whole plant will wilt and die. I can pull them out and there are no roots. Feb. 24, 2021 Low Maintenance Gardening Stem Rot. Therefore, do not be worried about chopping it off. Water the top 6 inches of soil, allow the top few inches of soil to dry, and water again. Sedum Problems. Sedums are low-maintenance plants that are susceptible to only a few fungal diseases, most of which are prevented by planting the sedums in well-draining soils. Treating stem rot can be difficult and in severe cases may involve replacing all of the soil. Growing Herbs Indoors Sedums are susceptible to crown rot. Remove all the dead or dying flowers from the sedum to prevent gray mold.