Updated: July 23, 2023

Introduction

Sedum plants are a popular choice for many gardeners due to their low maintenance requirements and attractive appearance. However, one common problem that can plague sedum plants is the presence of crusader bugs. These pesky insects can cause significant damage to your sedum plant if left unchecked. In this article, we will discuss how to identify crusader bugs and provide effective methods for getting rid of them.

Identifying Crusader Bugs

Crusader bugs, also known as soldier bugs or Spined Soldier Bugs (Podisus maculiventris), are predatory insects that belong to the family Pentatomidae. They are typically brown or gray in color and have a distinct triangular shape. Adult crusader bugs measure around 0.5 to 0.75 inches long and have well-developed wings.

Crusader bugs are beneficial insects in the garden as they feed on a variety of pests, including caterpillars, beetles, and aphids. However, they can become a nuisance when they start feeding on sedum plants, causing leaf damage and stunting plant growth.

Signs of Crusader Bug Infestation

The first sign of a crusader bug infestation on your sedum plant is the presence of small holes or punctures in the leaves. These holes are created by the crusader bugs as they use their piercing-sucking mouthparts to extract plant fluids. Over time, this feeding behavior can weaken the sedum plant and make it more susceptible to other pests and diseases.

Another telltale sign of a crusader bug infestation is the presence of their eggs on the underside of leaves. The eggs are small, barrel-shaped, and usually laid in clusters. If you spot these eggs on your sedum plant, it’s a clear indication that you have a crusader bug problem.

Methods for Getting Rid of Crusader Bugs

1. Manual Removal

One of the simplest and most effective methods for getting rid of crusader bugs is to manually remove them from your sedum plant. This can be done by carefully inspecting the leaves and stems and picking off any crusader bugs that you find. Be sure to wear gloves to protect your hands while doing this.

It’s important to note that crusader bugs are beneficial insects, so you should only remove them if they are causing significant damage to your sedum plant. If the infestation is minor and the plant can tolerate some feeding, it’s best to leave the crusader bugs alone as they will help control other pests in your garden.

2. Natural Predators

Since crusader bugs are predatory insects themselves, introducing natural predators into your garden can help control their population. Ladybugs, lacewings, and parasitic wasps are all beneficial insects that prey on crusader bugs and can be introduced to your garden as a form of biological control.

You can attract these natural predators to your garden by planting companion plants that provide them with nectar and pollen. Some examples of companion plants that attract beneficial insects include daisies, yarrow, and marigolds.

3. Neem Oil

Neem oil is a natural insecticide that can effectively control crusader bugs on sedum plants. It works by suffocating the insects and disrupting their feeding behavior. To use neem oil, dilute it according to the instructions on the label and spray it onto the affected parts of your sedum plant.

It’s important to note that neem oil should be used sparingly and only as a last resort, as it can also harm beneficial insects if used excessively.

4. Soap Solution

A simple homemade soap solution can also help get rid of crusader bugs on sedum plants. Mix a few drops of mild liquid soap with water in a spray bottle and spray it onto the affected parts of your plant. The soap solution will suffocate the bugs and prevent them from causing further damage.

Remember to thoroughly rinse the sedum plant with water after applying the soap solution to minimize any potential harm to the plant.

Conclusion

Crusader bugs can be a nuisance when they start feeding on sedum plants, causing leaf damage and impairing plant growth. However, with proper identification and timely intervention, you can effectively control their population and protect your sedum plant.

By manually removing the bugs, introducing natural predators, using neem oil or a soap solution, you can successfully get rid of crusader bugs on your sedum plants and ensure their healthy growth.

Remember, it’s important to strike a balance between pest control and preserving beneficial insects in your garden. Regular monitoring and early intervention are key to maintaining a healthy and thriving sedum plant.