For keepers of mint, rustfungus is one of just a few serious diseases to bear in mind. Read this article for information on mintrust symptoms and how to treat this disease. A little know-how can go a long way. Mintrust is a common fungal disease of garden mint, but also affects marjoram and savory. The fungus causes dusty orange, yellow and black spots on leaves, and distortion of shoots. Mintrust, caused by the fungus Puccinia menthae, can quickly spread and wreak havoc on your beloved herb garden if left unchecked. However, with the right knowledge and proactive measures, you can effectively treat and prevent this pesky problem. Learn effective methods to remove mintrust and treatrust on mint leaves. wish my hoyas good luck. . . #plantsoftiktok #houseplants #plantcare . . . rustfungustreatment for when its on plants. rustfungus spray. best way to treat it at home. Fungicidal Treatments for Rust on Mint Plants. What is MintRustFungus?# Mintrust is caused by a fungus, Puccinia menthae, which only infects plants in the mint family, especially spearmint and peppermint. Sharing knowledge here: Since I live in the San Francisco Fog Belt, I suffer from a variety of soil-borne funguses, including mintrust.As a result, minttreated with Neem Oil should be washed before consumption, especially if being fed to young children. Mintrust, caused by the fungus Puccinia menthae, is a serious disease limiting the establishment of a viable spearmint oil industry in. north east Victoria, Australia. Six fungicide-active ingredients: bitertanol, triadimenol, #uquinconazole, tebuconazole, myclobutanil and. The fungus often infects the plants when the leaves are wet for extended periods.Before you start treating your mint crop for mintrust, check the symptoms to make sure that's the cause. Preventative Measures for RustFungi. To keep your mint plants thriving and free from rustfungi, a proactive approach is advisable. Ensuring good air circulation around your plants helps reduce excess moisture, which can lead to fungal issues. Mintrust is primarily a result of overly wet and humid conditions, where the fungus thrives. It can also spread through debris, soil, and contact with infected plants. The result can distort shoots and cause defoliation, as well as browning foliage. Mintrust is another fungus that causes small brown, orange, or yellow pustules on undersides of leaves. Infected plants should be removed to prevent this disease from spreading. Heat treating the roots may help to control rust. View Larger Image MintRust. Yes, it appears that your mint has rust. This is a fungal problem and there are many who recommend ripping out all infected plants and replanting mint in another part of the yard far away, or planting in containers as an annual crop from now on. Rust, caused by the fungus Puccinia menthae, is a common disease of mint. Mintrust was first reported from Europe in 1801. This rust was found on commercial peppermint plantings in Oregon in 1948. The disease is now distributed widely throughout the world. Rust (Puccinia menthae) is a fungus that attacks mints (Mentha) and other members of the mint family such as bergamot, germander, mountain-mint and yerba buena.