Updated: August 8, 2022

Geraniums are beautiful and popular plants that come in a variety of colors and shapes. They are easy to grow and care for, but sometimes they can be susceptible to fungal infections. Fungal infections can cause leaves to yellow, wilt, and eventually fall off. If left untreated, it can even kill the plant. Here are some tips on how to get rid of fungus on your geranium plants.

Identify the Type of Fungi

Before you start treating your geranium plant, it is important to identify the type of fungi that is affecting it. There are several types of fungi that can affect geranium plants, including powdery mildew, leaf spot, and botrytis blight. Each type of fungi requires a different treatment method.

  • Powdery Mildew: Powdery mildew appears as a white or grayish powder on the leaves and stems. It thrives in humid environments and can spread quickly if not treated.
  • Leaf Spot: Leaf spot appears as brown or black spots on the leaves. It is caused by a fungus that thrives in wet conditions.
  • Botrytis Blight: Botrytis blight appears as gray or brown mold on the leaves and flowers. It thrives in damp conditions and can quickly spread throughout the plant.

Remove Infected Leaves

The first step in treating a fungal infection on your geranium plant is to remove all infected leaves. This will prevent the fungus from spreading to other parts of the plant. Be sure to dispose of infected leaves carefully, as they may contain spores that can reinfect the plant.

Improve Air Circulation

Fungal infections thrive in damp and humid conditions. To prevent fungal infections from occurring in the first place, it is important to improve air circulation around your geranium plants. You can do this by placing your plants in an area with good air circulation or by using a fan to circulate air around the plant.

Use Fungicides

If your geranium plant is already infected with fungus, you can use fungicides to treat the infection. There are many different types of fungicides available, including organic and synthetic options. Be sure to read the label carefully and follow the instructions for application.

Practice Good Watering Habits

Overwatering can contribute to fungal infections on geranium plants. To prevent fungal infections, water your geranium plants only when the soil is dry to the touch. Avoid getting water on the leaves and flowers, as this can contribute to fungal growth.

FAQ

Can I prevent fungal infections on my geranium plants?

Yes, you can prevent fungal infections by improving air circulation around your plants, practicing good watering habits, and keeping your plants healthy.

Can I use natural remedies to treat fungal infections on my geranium plants?

Yes, there are several natural remedies that can be effective in treating fungal infections on geranium plants. These include neem oil, baking soda, and garlic spray.

How long does it take for fungicides to work?

The length of time it takes for fungicides to work depends on the type of fungicide and the severity of the infection. Some fungicides may take several weeks to completely eliminate a fungal infection.