Updated: July 9, 2023

The taco plant, also known as the Euphorbia obesa, is a unique succulent that resembles a small green ball with lines resembling the folds of a taco shell. Native to South Africa, this plant has gained popularity among succulent enthusiasts worldwide due to its distinctive appearance. However, like any other plant, the taco plant is susceptible to pests, and one of the most common ones is the crusader bug.

Understanding Crusader Bugs

Crusader bugs, also known as Mictis profana, are small insects that belong to the family Coreidae. These bugs are commonly found in warm and dry regions such as South Africa, where the taco plant originates. They have a distinctive shield-like appearance and are often mistaken for stink bugs or beetles.

Crusader bugs feed on the sap of plants, including the taco plant. They use their sharp mouthparts to pierce through the plant’s tissues and extract nutrients. This feeding behavior can cause significant damage to the taco plant, leading to wilting, discoloration, and even death if left untreated.

Identifying Crusader Bug Infestation

It is crucial to identify a crusader bug infestation early on to prevent severe damage to your taco plant. Here are some signs that indicate your plant may be infested:

  1. Wilting and Drooping Leaves: If you notice your taco plant’s leaves becoming limp and drooping, it may be a sign of crusader bug infestation. The bugs’ feeding activity disrupts the flow of nutrients within the plant, leading to wilting.

  2. Yellowing or Browning Leaves: Crusader bugs extract sap from the leaves, causing them to turn yellow or brown over time. This discoloration typically starts at the edges and gradually spreads throughout the leaf.

  3. Sticky Residue: As crusader bugs feed on the taco plant, they excrete a sticky substance known as honeydew. If you notice a shiny or sticky residue on the leaves or surrounding areas, it is likely a result of bug activity.

  4. Presence of Bugs: Lastly, if you spot crusader bugs crawling on your taco plant, it is a clear indication of an infestation. These bugs are typically small, ranging from 1/2 to 3/4 inch in length, and have a distinct shield-like shape.

Methods to Get Rid of Crusader Bugs

Once you have identified a crusader bug infestation on your taco plant, it is essential to take immediate action to prevent further damage. Here are some effective methods to get rid of these pests:

1. Manual Removal

One of the simplest and most straightforward methods to eliminate crusader bugs is manual removal. Using a pair of tweezers or gloved hands, carefully pick off the bugs from the affected plant. Remember to be gentle to avoid damaging the plant in the process.

After removing the bugs, dispose of them in a sealed bag or container to prevent them from returning to your taco plant. Be thorough in your search, as crusader bugs often hide under leaves or in crevices.

2. Neem Oil

Neem oil is a natural insecticide derived from the seeds of the neem tree. It has been used for centuries to control pests and has proven effective against crusader bugs as well. Mix neem oil with water according to the manufacturer’s instructions and spray it onto the affected parts of your taco plant.

Neem oil works by disrupting the feeding behavior and reproductive cycle of insects, including crusader bugs. Repeat this treatment every 7-10 days until the infestation is eradicated.

3. Insecticidal Soap

Insecticidal soap is another safe and effective option for controlling crusader bugs on your taco plant. It is readily available in garden centers or can be made at home using mild dish soap and water.

To make your own insecticidal soap, mix 1-2 teaspoons of mild dish soap with a quart of water. Transfer the solution to a spray bottle and liberally spray it on the affected parts of your taco plant. The soap suffocates the bugs by clogging their breathing pores, effectively eliminating them.

4. Natural Predators

Introducing natural predators to your garden can help control crusader bug populations. Ladybugs, lacewings, and assassin bugs are natural enemies of these pests and will feed on them if present.

You can attract these beneficial insects by planting companion plants such as daisies, marigolds, and yarrow near your taco plant. Additionally, you can purchase ladybugs or lacewings from garden supply stores and release them into your garden.

5. Maintain Plant Health

Preventing crusader bug infestations starts with maintaining the overall health of your taco plant. Healthy plants are more resistant to pests and can better withstand bug damage.

Ensure that your taco plant receives adequate sunlight, water, and well-draining soil. Avoid overwatering or leaving the plant in standing water, as this can attract bugs. Regularly inspect your plant for signs of stress or infestation and take prompt action if necessary.

Conclusion

Crusader bugs can pose a threat to the health and vitality of your taco plant. However, with proper identification and timely intervention, you can effectively get rid of these pests and protect your beloved succulent. Remember to choose the method that aligns with your preferences and always follow the instructions provided by manufacturers when using insecticides. By taking proactive measures, you can ensure that your taco plant thrives bug-free for years to come.