Updated: July 2, 2023

Lantana plants are cherished for their vibrant and colorful flowers, making them a popular choice for gardens and landscapes. However, these beautiful plants can sometimes fall victim to borers, which are destructive pests that can cause significant damage. If you notice holes in your Lantana leaves or stems, it’s likely that borers have made their way into your plant. Don’t worry though, as there are several effective methods to get rid of borers and protect your Lantana plant.

Understanding Borers

Borers are a type of insect larvae that bore into the stems and trunks of plants, causing damage to the vascular system. They feed on the plant’s tissues, disrupting the flow of water and nutrients. Common types of borers that affect Lantana plants include clearwing moths, flathead borers, and stem borers.

Identifying Borer Damage

To effectively deal with borers, it’s important to be able to identify the signs of their presence. Look out for the following symptoms:

  1. Holes in Leaves and Stems: Borers create entry points into the plant through small holes in the leaves or stems.
  2. Wilting or Yellowing Leaves: As the borers damage the vascular system, the affected leaves may wilt or turn yellow.
  3. Sawdust-like Frass: Borers often leave behind sawdust-like droppings called frass near their entry points.
  4. Dieback: Severe borer infestations can lead to dieback, where entire branches or sections of the plant start to wither and die.

Natural Methods for Borer Control

When dealing with borers on your Lantana plant, it’s best to start with natural control methods before resorting to chemical pesticides. Here are some effective natural methods to try:

1. Manual Removal

Inspect your Lantana plant regularly and manually remove any borers you find. Use a pair of sterilized pruning shears or a sharp knife to carefully cut out the infested areas. Be sure to dispose of the borers away from your garden to prevent reinfestation.

2. Beneficial Insects

Introduce beneficial insects that feed on borers into your garden. Parasitic wasps and nematodes are natural enemies of borers and can help keep their populations in check. You can purchase these beneficial insects from garden centers or online.

3. Neem Oil

Neem oil is a natural pesticide derived from the neem tree. It has insecticidal properties and can effectively control borers on your Lantana plant. Dilute neem oil according to the instructions on the product label and spray it onto the affected areas of your plant. Repeat the application every one to two weeks until the borers are eliminated.

4. Diatomaceous Earth

Diatomaceous earth is a fine powder made from fossilized algae known as diatoms. It works by dehydrating and damaging the exoskeleton of insects, including borers. Sprinkle diatomaceous earth around the base of your Lantana plant, focusing on areas where borers are likely to enter, such as the soil line and lower stems.

Chemical Control Options

If natural methods don’t provide satisfactory results, you may need to consider using chemical pesticides to tackle severe borer infestations. When using chemical control options, it’s crucial to follow the instructions on the product label and take appropriate safety precautions. Here are some commonly used options:

1. Systemic Insecticides

Systemic insecticides are absorbed by plants and transported through their vascular system, making them an effective option for controlling borers. Apply a systemic insecticide specifically labeled for borer control to your Lantana plant according to the instructions on the product label. Keep in mind that systemic insecticides may take some time to fully eliminate borers, so be patient and monitor your plant’s progress.

2. Contact Insecticides

Contact insecticides, such as pyrethroids, can provide immediate control of borers by directly targeting the pests upon contact. Ensure that you choose a contact insecticide labeled for use on Lantana plants and apply it to the affected areas of your plant, following the instructions on the product label. Repeat the application if necessary.

Preventive Measures

Preventing borer infestations is key to maintaining healthy Lantana plants. Here are some preventive measures you can take:

  1. Prune Regularly: Regular pruning helps to remove any dead or damaged wood, reducing potential borer breeding sites.
  2. Promote Plant Health: Provide your Lantana plant with optimal growing conditions, including proper watering and fertilization, to keep it healthy and less susceptible to borers.
  3. Monitor Nearby Plants: Keep an eye on nearby plants, as borers can easily spread from one plant to another. If you notice signs of borer infestation on neighboring plants, take immediate action to prevent their spread.
  4. Clean Garden Tools: Borers can hitch a ride on garden tools, so make sure to clean and sterilize your tools after each use to avoid inadvertently introducing them to your Lantana plant.

By being proactive and implementing these measures, you can significantly reduce the risk of borer infestation on your Lantana plants.

In conclusion, while borers can pose a threat to your Lantana plants, there are various methods available to control and get rid of them. Start with natural methods, such as manual removal and introducing beneficial insects, before considering chemical control options. Remember to take preventive measures to keep your Lantana plants healthy and minimize the risk of future borer infestations. With proper care and attention, you can enjoy the beauty of your Lantana plants for years to come.