Updated: October 14, 2022

Cigar plant, also known as Cuphea ignea, is a popular plant because of its beautiful and vibrant flowers. However, it is prone to nematode infestation, which can damage the plant and affect its overall health. Nematodes are microscopic worms that live in soil and feed on the roots of plants, causing them to wilt and eventually die. In this article, we will discuss how to get rid of nematodes on cigar plant.

Symptoms of Nematode Infestation

Before we discuss how to get rid of nematodes on cigar plant, it is important to know the symptoms of nematode infestation. Some common symptoms include:

  • Stunted growth
  • Yellowing leaves
  • Wilting
  • Root damage
  • Poor flower production

If you notice any of these symptoms in your cigar plant, it is likely that it has been infested with nematodes.


Prevention is always better than cure. Here are some preventive measures you can take to avoid nematode infestation:

  • Use sterilized soil when planting.
  • Avoid over-watering your cigar plant.
  • Rotate your crops to prevent the buildup of nematodes in the soil.
  • Use resistant varieties of cigar plant if available.

Natural Remedies

If your cigar plant has already been infested with nematodes, there are some natural remedies you can try:

Neem Oil

Neem oil is a natural pesticide that can be used to get rid of nematodes. Mix 2 tablespoons of neem oil with 1 gallon of water and spray it on your cigar plant. Repeat this process every 7 days until the nematodes are gone.


Marigolds are known for their ability to repel nematodes. Plant marigolds around your cigar plant to prevent nematodes from infesting it.

Compost Tea

Compost tea is a natural fertilizer that can also help get rid of nematodes. Brew compost tea by soaking compost in water for 3-4 days. Strain the liquid and spray it on your cigar plant.

Chemical Remedies

If natural remedies do not work, you may need to resort to chemical remedies. Here are some chemical options:


Nematicides are pesticides that specifically target nematodes. They can be effective in getting rid of nematodes, but they can also harm beneficial organisms in the soil. Follow the instructions carefully when using nematicides.


Fumigants are chemicals that are used to sterilize the soil. They can be effective in getting rid of nematodes, but they can also be harmful to humans and animals. Use fumigants as a last resort and follow the instructions carefully.


Can nematode-infested plants be saved?

It depends on the severity of the infestation. If caught early, plants can recover with proper treatment. However, severe infestations may require the plant to be removed and destroyed.

How long does it take to get rid of nematodes?

It depends on the treatment method used and the severity of the infestation. Natural remedies may take longer to work than chemical remedies.

How can I prevent nematode infestation?

Use sterilized soil when planting, avoid over-watering your plants, rotate your crops, and use resistant varieties of plants if available.

Are nematodes harmful to humans?

Most nematodes are harmless to humans, but some species can cause health problems. It is important to handle nematodes with care and wear gloves when working with soil.