Updated: July 11, 2023

Introduction

Ice plants are beautiful succulent ground cover plants that are known for their colorful flowers and ability to thrive in arid and coastal areas. However, they are also prone to infestations by pests such as thrips. Thrips are tiny insects that feed on the sap of plants, causing damage to the leaves and flowers. If left untreated, thrips can cause significant damage to ice plants. In this article, we will discuss effective methods to get rid of thrips in ice plants.

1. Identify the presence of thrips

Before taking any action, it is important to confirm the presence of thrips on your ice plants. Thrips are tiny insects, usually less than 1/16 inch in length, and can be difficult to spot with the naked eye. However, you can look out for the following signs:

  • Discolored or distorted leaves
  • Silver or bronze streaks on leaves
  • Sunken or distorted flower buds
  • Sticky residue on leaves (excrement left by thrips)
  • Presence of tiny black or pale-colored insects on the plant

If you notice any of these signs, it is likely that your ice plants are infested with thrips.

2. Remove affected plant parts

To prevent the spread of thrips to other parts of your ice plants or nearby plants, it is important to remove and destroy affected plant parts. Trim off any discolored or distorted leaves and flowers and dispose of them properly. This will help reduce the population of thrips and prevent further damage.

3. Use insecticidal soap

Insecticidal soap can be an effective solution for controlling thrips in ice plants. It works by suffocating the insects and disrupting their cell membranes. To use insecticidal soap, follow these steps:

  1. Mix insecticidal soap with water according to the instructions on the product label.
  2. Spray the solution onto the affected ice plants, making sure to cover all parts of the plants, including the undersides of leaves and flowers.
  3. Repeat the application every 7-10 days until thrips are no longer present.

It is important to note that insecticidal soap may not be effective against all species of thrips. If you do not see any improvement after a few applications, consider trying other methods.

4. Introduce beneficial insects

Another natural and environmentally friendly way to control thrips in ice plants is by introducing beneficial insects that feed on thrips. Ladybugs and lacewings are natural predators of thrips and can help reduce their population. You can attract these beneficial insects to your garden by planting flowers such as daisies, cosmos, and yarrow, which provide nectar and pollen for them. Additionally, you can purchase ladybugs or lacewings from garden centers and release them onto your ice plants.

5. Neem oil spray

Neem oil is a natural insecticide derived from the seeds of the neem tree. It has anti-feedant properties, meaning it makes the plant unappetizing to thrips and other insects. To use neem oil spray:

  1. Mix neem oil with water according to the instructions on the product label.
  2. Spray the solution onto the affected ice plants, ensuring thorough coverage.
  3. Repeat the application every 7-10 days until thrips are under control.

Neem oil is safe to use on most plants but it is always a good idea to test it on a small area of your ice plant before applying it to the entire plant.

6. Introduce physical barriers

If you have a small area of ice plants that is infested with thrips, you can try using physical barriers to protect them from further infestation. Cover the plants with floating row covers or fine mesh netting to prevent thrips from reaching them. This method may not be practical for large areas, but it can be effective for small garden beds or containers.

7. Practice good garden hygiene

Prevention is always better than cure when it comes to pest control. To reduce the risk of thrips infestation in your ice plants, practice good garden hygiene. Remove weeds and debris regularly, as they can provide hiding places for thrips. Avoid over-fertilizing your plants, as excessive nitrogen can attract thrips. Finally, maintain proper spacing between plants to allow for good air circulation, which can help reduce thrip populations.

Conclusion

Thrips can be a nuisance for ice plant growers, but with the right approach, you can effectively control their population and protect your plants. By identifying their presence early, removing affected plant parts, and using methods such as insecticidal soap, beneficial insects, neem oil spray, physical barriers, and practicing good garden hygiene, you can keep your ice plants healthy and thrip-free. Remember to always follow the instructions on product labels and monitor your plants regularly to ensure successful thrip control.