Updated: September 4, 2022

Cast iron plants are a popular choice for those who want a low-maintenance plant that can thrive in low-light environments. However, these plants are not immune to pests. One of the most common pests that affect cast iron plants are crusader bugs. These tiny insects can cause significant damage to your plant if left untreated.

In this article, we will discuss how to identify crusader bugs and provide tips on how to get rid of them.

Identifying Crusader Bugs

Crusader bugs, also known as marmorated stink bugs, are small insects that are about the size of a dime. They have a distinctive shield shape and a marbled brown coloration. These bugs are often found in large numbers and can quickly infest your cast iron plant.

The most noticeable sign of a crusader bug infestation is the yellowing and wilting of leaves. If you notice these symptoms, inspect your plant closely for any signs of crusader bugs.

Getting Rid of Crusader Bugs

There are several steps you can take to get rid of crusader bugs on your cast iron plant. Here are some effective methods:

1. Handpicking

One of the most effective ways to get rid of crusader bugs is by handpicking them off your plant. Wear gloves and carefully inspect your plant for any bugs. Once you spot them, gently pick them off and dispose of them in a sealed container. Repeat this process daily until you have removed all the bugs.

2. Neem Oil

Another effective method for getting rid of crusader bugs is by using neem oil. This natural insecticide is safe for your cast iron plant and will not harm beneficial insects like bees and butterflies.

To use neem oil, mix one tablespoon of neem oil with one gallon of water and spray the solution onto your plant. Be sure to cover both the top and bottom of leaves, as this is where crusader bugs tend to hide. Repeat this process every seven days until the infestation is under control.

3. Insecticidal Soap

Insecticidal soap is another effective way to get rid of crusader bugs. This soap works by suffocating the bugs and is safe for your cast iron plant.

To use insecticidal soap, mix two tablespoons of the soap with one gallon of water and spray the solution onto your plant. Be sure to cover both the top and bottom of leaves. Repeat this process every seven days until the infestation is under control.

4. Beneficial Insects

Introducing beneficial insects like ladybugs and lacewings to your garden can help control crusader bug populations. These insects are natural predators of crusader bugs and will eat them, keeping their populations in check.

You can purchase beneficial insects online or at your local nursery. Be sure to release them onto your plants at dusk when they are less likely to fly away.

FAQ

Are crusader bugs harmful to humans?

No, crusader bugs are not harmful to humans, but they do emit a foul odor when disturbed, which can be unpleasant.

Can I use chemical insecticides to get rid of crusader bugs?

While chemical insecticides may be effective in getting rid of crusader bugs, they can also harm beneficial insects and pollute the environment. It is best to use natural methods like neem oil and insecticidal soap.

How do I prevent crusader bugs from infesting my cast iron plant?

To prevent crusader bugs from infesting your cast iron plant, keep the area around your plant clean and free of debris. Also, avoid over-fertilizing your plant, as this can make it more attractive to pests. Finally, inspect your plant regularly for signs of pests and take action early if you notice an infestation.

In conclusion, crusader bugs can be a frustrating pest to deal with, but with the right approach, you can get rid of them and keep your cast iron plant healthy and thriving. Remember to inspect your plant regularly and take action early if you notice any signs of an infestation.