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Common Chive Plant Diseases:
How to Identify and Treat

Updated: March 29, 2022

Chives are a popular herb that is used in cooking for their mild onion flavor. They are easy to grow and maintain, making them a favorite among gardeners. However, just like any other plant, chives are susceptible to diseases that can affect their growth and production. In this article, we will discuss some of the most common chive plant diseases, how to identify them, and how to treat them.

Downy Mildew

Downy mildew is a fungal disease that affects chives and other plants in the Allium family. It is characterized by yellowing leaves that may curl or become distorted. A white or grayish mold can be seen on the underside of the leaves, which can eventually cause them to die.

To prevent downy mildew, it is important to avoid overhead watering and to keep the area around the plants clean and free of debris. If you suspect that your chives have downy mildew, remove infected leaves and dispose of them immediately. Fungicides can also be applied to help control the spread of the disease.

Rust

Rust is a fungal disease that affects many plants, including chives. It is characterized by small orange or brown spots on the leaves, which can eventually turn black. The spots may also appear on the stems and flowers of the plant.

To prevent rust, it is important to keep the area around the plants clean and free of debris. Watering should be done at the base of the plant and not from overhead. If you suspect that your chives have rust, remove infected leaves and dispose of them immediately. Fungicides can also be applied to help control the spread of the disease.

Botrytis Blight

Botrytis blight is a fungal disease that affects many plants, including chives. It is characterized by gray mold on the leaves and stems of the plant, which can eventually cause them to die.

To prevent botrytis blight, it is important to keep the area around the plants clean and free of debris. Good air circulation can also help prevent the disease from spreading. If you suspect that your chives have botrytis blight, remove infected leaves and dispose of them immediately. Fungicides can also be applied to help control the spread of the disease.

Onion Maggots

Onion maggots are the larvae of a fly that can cause significant damage to chive plants. They burrow into the base of the plant, causing it to wilt and die. The maggots can also tunnel into the bulbs, causing them to rot.

To prevent onion maggots, it is important to avoid planting chives near other Allium plants, such as onions and garlic. The use of row covers can also help prevent adult flies from laying their eggs near the plants. If you suspect that your chives have onion maggots, remove infected plants and dispose of them immediately.

FAQ

Can I eat chives that have been affected by disease?

It is not recommended to eat chives that have been affected by disease. Consuming infected plants can lead to health issues.

How often should I water my chive plants?

Chive plants should be watered once a week, or when the soil feels dry to the touch.

What is the best way to harvest chives?

Chives should be harvested by cutting them at the base of the plant with sharp scissors. This will encourage new growth and prevent damage to the plant.

In conclusion, identifying and treating common chive plant diseases is important for maintaining healthy and productive plants. By following preventative measures and taking action at the first sign of disease, you can ensure a bountiful harvest of delicious chives.