Updated: July 1, 2023

Nematodes are microscopic worms that can cause significant damage to the roots of plants, including the beloved Praying Hands plant. These pests can weaken the plant’s ability to absorb water and nutrients, leading to stunted growth and even death if left untreated. In this article, we will explore effective methods to get rid of nematodes on your Praying Hands plant and restore its health.

Identify the Problem

Before you can effectively treat nematode infestation on your Praying Hands plant, it is crucial to correctly identify the problem. Nematodes are not visible to the naked eye, so you will need to look for signs of their presence. Common symptoms include wilting, yellowing leaves, stunted growth, and root damage. If you suspect nematode infestation, you may also notice small white or brown cysts on the roots.

Soil Solarization

Soil solarization is a natural and effective method for controlling nematodes in the garden. This technique utilizes the sun’s heat to kill off nematodes and other soil-borne pests. To solarize the soil for your Praying Hands plant:

  1. Clear the area around your plant and remove any debris or weeds.
  2. Water the soil thoroughly to ensure it is moist but not saturated.
  3. Cover the soil with clear plastic sheeting, securing the edges with rocks or soil to create an airtight seal.
  4. Leave the plastic sheeting in place for at least four to six weeks during hot summer months or up to eight weeks during cooler seasons.
  5. As the sun shines on the plastic, it will heat up the soil beneath, killing nematodes and other pests.
  6. After the recommended period, remove the plastic and allow the soil to cool before replanting.

Crop Rotation

Crop rotation is an age-old technique used to reduce pest and disease problems in plants. By rotating your Praying Hands plant with nematode-resistant crops, you can disrupt the nematode life cycle and prevent their build-up in the soil. It is important to select crops that are not susceptible to nematode infestation and can break the pest’s life cycle.

Some nematode-resistant crops that you can rotate with your Praying Hands plant include marigolds, sunflowers, beans, and corn. These plants release compounds into the soil that repel or suppress nematodes, reducing their population over time. Rotate your Praying Hands plant with these crops every season or every two years for best results.

Soil Amendments

Certain soil amendments can help create an unfavorable environment for nematodes, making it difficult for them to survive and reproduce. Organic matter such as compost or well-rotted manure helps improve soil structure and fertility while encouraging beneficial soil microorganisms that prey on nematodes.

Mixing compost or well-rotted manure into the top few inches of the soil before planting your Praying Hands plant can help deter nematodes. Additionally, incorporating organic matter into the soil after harvest can provide long-term benefits by improving soil health and reducing nematode populations.

Biocontrol Agents

Using beneficial organisms as biocontrol agents is another effective method to combat nematodes on your Praying Hands plant. These organisms prey on nematodes, keeping their populations in check and reducing damage to plants. Two commonly used biocontrol agents for nematode control are:

  1. Nematophagous fungi: These fungi are natural enemies of nematodes and can effectively parasitize or trap them, preventing further damage to plants. Beneficial fungi like Paecilomyces lilacinus and Pochonia chlamydosporia are commercially available and can be applied to the soil around the plant’s roots.
  2. Nematode-resistant plants: Some plants, such as certain marigold varieties (Tagetes spp.) and African marigolds (Tagetes erecta), release compounds that repel nematodes or inhibit their reproduction. Planting these nematode-resistant varieties around your Praying Hands plant can help reduce nematode populations.

Chemical Control

If all else fails and nematode infestation remains severe, chemical control may be necessary. However, it is essential to choose nematicides specifically formulated for use on ornamental plants and follow the instructions carefully to avoid harming beneficial organisms or the environment.

Before resorting to chemical control, consult with a local garden center or extension service to determine the most suitable and effective nematicide for your Praying Hands plant.

Conclusion

Nematodes can pose a significant threat to the health and vitality of your Praying Hands plant. By correctly identifying the problem and implementing effective control methods such as soil solarization, crop rotation, soil amendments, biocontrol agents, and chemical control as a last resort, you can successfully rid your Praying Hands plant of nematodes and ensure its continued growth and beauty. Remember to regularly monitor your plants for signs of nematode infestation and take swift action to prevent further damage.