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How to Get Rid of Nematodes on Geranium Plant

Updated: May 26, 2022

Geraniums are beautiful flowering plants that are popular among gardeners. However, they are often the target of nematodes, microscopic worms that can cause serious damage to the plant’s roots. If left untreated, nematodes can weaken the plant and even kill it. In this article, we will discuss effective ways to get rid of nematodes on geranium plants.

What are Nematodes?

Nematodes are small, microscopic worms that live in the soil. They are usually harmless, but some species can cause serious damage to plants by feeding on their roots. Nematodes can infect a wide range of plants, including geraniums.

Signs of Nematode Infestation

The following signs may indicate that your geranium plant is infected with nematodes:

  • Stunted growth
  • Yellowing leaves
  • Wilting leaves
  • Root knots or galls
  • Reduced flower production

If you notice any of these symptoms, it’s important to take action quickly to prevent further damage.

How to Get Rid of Nematodes on Geranium Plant

There are several methods you can use to get rid of nematodes on your geranium plant:

1. Solarization

Solarization is a natural method of controlling nematodes by using the heat from the sun. To solarize your soil, follow these steps:

  1. Water your soil thoroughly.
  2. Cover the area with clear plastic sheeting.
  3. Seal the edges of the plastic sheeting with soil.
  4. Leave the plastic sheeting in place for 4-6 weeks during hot weather.

The heat from the sun will raise the temperature of the soil to a level that will kill nematodes and other harmful organisms.

2. Crop Rotation

Crop rotation is a technique that involves planting different crops in the same area each year. This can help to prevent nematodes from building up in the soil. If you have a nematode infestation, avoid planting geraniums or other susceptible plants in that area for at least two years.

3. Nematode-Resistant Varieties

Some geranium varieties are resistant to nematodes. Look for varieties labeled as “nematode-resistant” when shopping for geranium plants.

4. Soil Fumigation

Soil fumigation is a last resort method of controlling nematodes. It involves using chemicals to kill nematodes and other harmful organisms in the soil. This method should only be used by experienced gardeners who are comfortable working with chemicals.

FAQs

Can nematodes be controlled naturally?

Yes, solarization is a natural method of controlling nematodes.

How do I know if my geranium plant has nematodes?

Signs of nematode infestation include stunted growth, yellowing leaves, wilting leaves, root knots or galls, and reduced flower production.

What should I do if my geranium plant has nematodes?

Try solarization, crop rotation, or planting nematode-resistant varieties. If those methods don’t work, consider soil fumigation as a last resort.

In conclusion, nematodes can be a serious problem for geranium plants, but there are effective ways to control them. By using these methods, you can keep your geraniums healthy and beautiful all season long.