Read customer reviews & find best sellers. Just don’t leave them rotting in your yard. Use pine bark or com. Within days, entire plants may have died back, showing signs of rot at the crown of the plant. Additionally, growers may notice the presence of small, red, bead-like growths called sclerotia. Choose from a wide range of gardening supplies and accessories at amazon. The size of the hosta also matters. Crown and petiole rot of the hosta is caused by a pathogen called sclerotium rolfsii. Next, clean all traces of fungus from the ground near the hosta (mycelium, granules, and all rotten tissue). After several years of battling outbreaks of southern blight here in the garden, i believe i have been successful in eliminating it from the garden. The first thing to do to avoid petiole rot is not to buy diseased plants. Free, easy returns on millions of items. In other words, if the disease affects the base of the petioles and the top of the crown, the rest of the plant can fully recover. If it is a dwarf hosta with a small rhizome, it has little chance of surviving. It is as if the bush is falling apart. · a hosta with southern blight first shows itself in the form of yellowing or wilting leaves. If your hosta has petiole rot, the first thing to do is to remove the diseased petioles along with the leaves. Residue management options differ depending on what the previous crop was in a field. Also, remove the rotten part of the crown using a sh. The fungus can be spread through movement of infested soil, plants, or mulch. Keep your garden clean at all times. But if it is a large variety. Be sure to rinse shoes and wash gloves to reduce the chance of spreading sclerotia into other garden areas. Disinfect all tools used in an area with southern blight with a solution of 1-part bleach to 9-parts water. Always remove dead hosta leaves at the end of the season in the trash. This is a rather serious disease that can lead to the death of the plant. They simply lie on the ground with the leaves. Instead, throw them in the trash. See full list on worldofgardenplants. com This happens because the movement of water from the roots to the leaves is impaired. · southern blight is caused by the fungus sclerotium rolfsii, which lives in soil, on plants (including weeds), plant debris and mulch. The hosta will recover from petiole rot if the rhizome is not too damaged. Next, the leaves can dry out and become brown and crispy. · the introduction of southern blight into the garden can be avoided by making sure to purchase disease-free plants from reputable garden centers and plant nurseries. A second symptom is leaf petioles drooping. This disease is quite common and affects many crops in addition to the hosta. There is always the chance i will bring it back in on a new plant, so i continue to keep an eye out for any leaves that are lying down. Avoid leaving plant debris in the garden to rot. If you want to buy a hosta , examine it for symptoms of southern blight. Renew mulch once a season. Southern blight can be controlled with cultural and chemical techniques. Once in the garden, the disease quickly spreads and it is almost impossible t. The first symptom of southern blight is yellowing of the leaves. Its other name is southern blight.