Updated: July 4, 2023

Pink ice plant, also known as Carpobrotus edulis, is a popular ground cover plant that is loved for its vibrant pink flowers and ability to withstand harsh conditions. However, like any other plant, it is susceptible to pests and diseases. One common pest that can wreak havoc on pink ice plants is the crusader bug (Mictis profana). These small insects feed on the sap of the plant, causing damage to the leaves and flowers. If left untreated, a crusader bug infestation can lead to stunted growth and even death of the plant. In this article, we will explore effective methods to get rid of crusader bugs on pink ice plants.

Identifying Crusader Bugs

Before we dive into the methods of control, it’s important to properly identify crusader bugs to ensure accurate treatment. Crusader bugs are small insects that measure around 6-7 mm in length. They are usually green or yellow in color with black spots on their wings. These bugs have a spear-like mouthpart that they use to pierce through the plant tissue and suck out sap.

Cultural Methods of Control

One of the first steps in getting rid of crusader bugs on pink ice plants is to create an unfavorable environment for them to thrive. Here are some cultural methods you can employ:

1. Proper Planting Techniques

When planting pink ice plants, make sure to give them enough space between each plant. This will help promote good air circulation and prevent overcrowding, which can attract pests. Additionally, choose a well-draining soil mix to avoid waterlogged conditions that can weaken the plants and make them more susceptible to infestations.

2. Regular Pruning and Maintenance

Regular pruning of pink ice plants not only helps maintain their shape but also removes any dead or diseased foliage that can attract pests. Remove any infested leaves or flowers and dispose of them properly to prevent the spread of bugs.

3. Water Management

Proper watering techniques are crucial in preventing crusader bug infestations. Overwatering can create a moist environment that is favorable for these pests. Water pink ice plants deeply but infrequently, allowing the soil to dry out between waterings. This will help promote healthy root growth and discourage pest activity.

Organic Control Methods

If cultural methods alone are not enough to control crusader bugs, you can resort to organic control methods. These methods are safe for the environment and do not harm beneficial insects.

1. Insecticidal Soap Spray

Insecticidal soap sprays are effective in controlling crusader bugs on pink ice plants. These soaps work by suffocating the insects, causing them to die. To make your own insecticidal soap spray, mix 1 tablespoon of mild liquid soap (without bleach or degreaser) with 1 quart of water. Spray this solution directly on the affected parts of the plant, making sure to cover both sides of the leaves. Repeat this process every few days until the infestation is under control.

2. Neem Oil Spray

Neem oil is a natural insecticide derived from the neem tree (Azadirachta indica). It works by disrupting the feeding and reproductive patterns of insects, including crusader bugs. Mix 2 tablespoons of neem oil with 1 gallon of water and spray it on your pink ice plants. Be sure to thoroughly coat all parts of the plant, including undersides of leaves and stems. Repeat this process every 7-10 days until the infestation is eradicated.

3. Beneficial Insects

Introducing beneficial insects into your garden can help control crusader bugs naturally. Ladybugs and lacewings are known to feed on these pests. You can attract them by planting nectar-rich flowers such as daisies, marigolds, and yarrow. Alternatively, you can purchase beneficial insects from gardening supply stores and release them in your garden.

Chemical Control Methods

If the infestation is severe and organic control methods fail to provide satisfactory results, chemical control methods can be considered. However, it is important to use pesticides responsibly and follow the manufacturer’s instructions carefully.

1. Insecticides

There are several insecticides available in the market that are effective against crusader bugs. Look for products containing active ingredients such as pyrethroids or carbaryl. Follow the instructions on the label for dosage and application methods. It is advisable to apply insecticides during the cooler hours of the day to minimize the impact on beneficial insects.

2. Systemic Insecticides

Systemic insecticides are absorbed by the plant and transported to all parts, including the sap that crusader bugs feed on. This method provides long-term protection against pests. However, systemic insecticides should be used with caution as they can also harm beneficial insects. Consult with a professional or your local extension office before using systemic insecticides.

In conclusion, getting rid of crusader bugs on pink ice plants requires a combination of cultural, organic, and if necessary, chemical control methods. By implementing these strategies, you can effectively manage and prevent infestations, ensuring the health and beauty of your pink ice plants for years to come. Remember to always monitor your plants regularly and take action at the first sign of pest activity to minimize damage.