Mint white spots and how to treat them. “White spots” are small, circular, white patches on the leaves of your mint plants. You’ve probably seen them yourself, and not only do they look gross, but they also pose a danger to your mint plants’ health.
Mint plant white spots are small white patches found on the leaves of Mentha aquatica, Mentha spicata, and Mentha pulegium. The cause of the mint plant white spots is not known, but most likely, they result from a fungal infection.
Mint fungus causes mildew on the leaves, stems, and flowers of mint plants. It starts small and can grow quickly if it isn’t stopped. There are several ways to stop it. Wash all the leaves and flowers of infected plants off.
The white stuff growing on your mint plant is mold. It’s harmless. It’s not a pest. But there is no reason to keep it around if you don’t want it to grow there. You can remove it with a small plastic knife or even a sharpened toothbrush.
Mint is often used as a home remedy for pest problems. A simple home remedy to get rid of insects on mint plants includes spraying the leaves with water mixed with some baking soda, just like a houseplant, and then putting the mint in the refrigerator until the bugs die off.
Mint plant white spots are caused by excess iron in the soil, which can result in white leaves or white patches on the plant leaves. It is also a sign of disease in plants. It is important that you know the symptoms of mint plant white spots so that you can take prompt action and protect the plants.