White Mold on Plants: 4 Ways to Get Rid of White Mold

White mold, also known as powdery mildew, is a fungal disease that affects various plants and vegetation. This [white fuzzy mold](https://www.masterclass.com/articles/how-to-remove-white-mold-from-wood) can cover the leaves and stems of indoor and outdoor plants, and in some cases, cover the entire plant—including fruits and buds—in white and gray fungal spores. White mold is contagious, which means it can spread quickly to other plants if left untreated. While some white powder is generally harmless, it can become a bigger problem, the more it spreads. Powdery mildew can make photosynthesis difficult for plants, causing them to gradually weaken and wither over time, affecting the appearance and flavor of your crops. High humidity and low airflow are the primary causes of white mold. Planting your vegetation without adequate spacing where it cannot get proper air circulation, or overwatering your garden or potting soil can create prime conditions for white mold to grow. Damp, low light conditions contribute to powdery mildew growth, making [indoor houseplants](https://www.masterclass.com/articles/how-to-care-for-indoor-plants) the most susceptible plants to this fungal growth. Planting disease-resistant plant varieties is usually the best way to keep mold and other issues at bay. However, if that is not an option, there are a few home remedies that can help you get rid of white mold on your plants: 1. __Use neem oil__. Neem oil is a naturally occurring substance that works as an effective insecticide, helping defeat white mold and ward off other unwanted pests. Mix two teaspoons of organic neem oil with a half-gallon of water into a sprayer, and apply liberally on the infected plant every few days until the mold is gone. 2. __Try mouthwash__. Ethanol-based mouthwash can be an effective treatment for white mold. Mix one part mouthwash with three parts water and apply to affected areas. Avoid oversaturation. While mouthwash is an effective remedy for white mold, it can be harmful to new plant growth and burn leaves if used too often. 3. __Use vinegar__. Vinegar is a proven method for destroying mold and eliminating pesky white spots from your plants. Mix two tablespoons of [apple cider vinegar](https://www.masterclass.com/articles/what-are-the-uses-for-apple-cider-vinegar) with a quart of water, and spray onto your infected leaves and stems. Repeat every few days until all traces of mold are gone. 4. __Practice preventative care__. One of the best ways to stave off mold is to prevent its growth in the first place. Use an organic fungicide to treat your plant leaves and stems, or create a mixture using a tablespoon of baking soda and a half-tablespoon of liquid soap in a gallon of water. Mix in a spray bottle and coat the plant thoroughly. Grow your own garden with Ron Finley, the self-described "Gangster Gardener." Get the [MasterClass Annual Membership](https://www.masterclass.com/) and learn how to cultivate fresh herbs and vegetables, keep your house plants alive, and use compost to make your community - and the world - a better place. Whether you’re managing a garden or just a few houseplants, they are always susceptible to pests and plant diseases. Knowing how to treat and care for your plants properly can keep them healthy and increase their lifespan.