Updated: July 2, 2023

Introduction

Trailing ice plants are beautiful and versatile ground cover plants that add vibrant colors and texture to any garden. However, they are susceptible to infestation by borers, which can cause significant damage if left untreated. Borers are small insects that bore into the stems and roots of plants, leading to weakened growth and even death. In this article, we will explore effective methods to get rid of borers on trailing ice plants and restore their health and beauty.

Identifying Borer Infestation

Before implementing any treatment, it is crucial to correctly identify the presence of borers on your trailing ice plants. Look out for the following signs:

  1. Wilting or yellowing leaves: Borers disrupt the flow of nutrients and water within the plant, causing leaves to wilt or turn yellow.
  2. Entry holes: Borers create small entry holes in the stems or roots of plants. These holes may be accompanied by sawdust-like frass.
  3. Stem or root damage: Inspect the stems and roots of your plants for any signs of tunneling or damage caused by borers.

Prevention is Key

Preventing borer infestation is always better than dealing with an existing problem. Here are some preventive measures you can take to protect your trailing ice plants:

  1. Choose healthy plants: Start with healthy plants from reputable nurseries or garden centers. Healthy plants are less susceptible to infestations.
  2. Maintain plant vigor: Provide your trailing ice plants with optimal growing conditions, including adequate sunlight, well-draining soil, and regular watering. A healthy plant is more resistant to pests.
  3. Monitor regularly: Regularly inspect your plants for any signs of borer activity. Early detection allows for prompt action, minimizing potential damage.

Natural Remedies

If you have noticed signs of borer infestation on your trailing ice plants, don’t panic. There are several natural remedies you can try before resorting to chemical treatments:

1. Pruning and Destroying Infested Parts

For small infestations, carefully prune and remove the affected stems or roots. Make sure to cut well below the damaged area to ensure complete removal of borers. Dispose of the pruned parts by burning or sealing them in a plastic bag to prevent further spread.

2. Beneficial Insects

Encourage beneficial insects, such as parasitic wasps and nematodes, into your garden. These natural predators feed on borers and help control their population. Introduce them by planting nectar-rich flowers or purchasing commercially available beneficial insects.

3. Neem Oil

Neem oil is a natural insecticide derived from the neem tree. It contains compounds that disrupt the life cycle of pests, including borers. Dilute neem oil according to the manufacturer’s instructions and spray it on your trailing ice plants, paying close attention to the stems and roots.

4. Diatomaceous Earth

Diatomaceous earth is a powdery substance made from fossilized algae called diatoms. It acts as a physical barrier, dehydrating and killing insects upon contact. Sprinkle diatomaceous earth around the base of your plants and on the foliage to deter borers.

Chemical Treatments

If natural remedies fail to control the borer infestation, you may need to consider chemical treatments as a last resort. It is important to follow all safety guidelines provided by the manufacturer when using chemical insecticides. Here are some commonly used options:

1. Systemic Insecticides

Systemic insecticides are absorbed by plants and transported throughout their tissues, making them effective against borers that feed on plant sap. Apply systemic insecticides as directed on the product label to ensure maximum efficacy and minimal harm to beneficial insects.

2. Contact Insecticides

Contact insecticides directly kill borers upon contact. These insecticides are sprayed onto the affected parts of the plant, targeting the entry holes and areas of borer activity. Be sure to follow the instructions carefully and avoid spraying during peak sunlight or when bees are actively foraging.

Cultural Practices

In addition to natural and chemical treatments, implementing certain cultural practices can help prevent future borer infestations:

  1. Regularly remove dead plant material: Borers often lay their eggs in dead or decaying plant material. Regularly clean up fallen leaves, stems, and other debris to eliminate potential breeding grounds.
  2. Proper irrigation: Avoid overwatering your trailing ice plants as it can lead to root rot, weakening the plants’ defenses against borers. Ensure proper drainage and allow the soil to dry out slightly between watering sessions.
  3. Mulching: Apply a layer of organic mulch around your plants to conserve moisture, regulate soil temperature, and discourage borer activity.

Conclusion

Dealing with borer infestation on trailing ice plants requires a multifaceted approach that combines prevention, natural remedies, chemical treatments, and cultural practices. Remember to regularly monitor your plants for signs of infestation, act promptly at the first sign of trouble, and maintain good plant health to minimize the risk of borers. With patience and diligence, you can successfully rid your trailing ice plants of borers and enjoy their beauty for years to come.