Updated: July 10, 2023

The Weeping Fig (Ficus benjamina) is a popular indoor plant known for its graceful, drooping branches and glossy green leaves. However, like many other plants, the Weeping Fig is susceptible to infestations by borers. These small insects can cause significant damage to the plant if left untreated. In this article, we will explore effective methods to get rid of borers and protect your Weeping Fig plant.

Understanding Borers

Borers are a type of insect larvae that bore into the stems or trunks of plants, causing damage to the plant tissue. The most common type of borer that affects Weeping Fig plants is the Ficus borer (Hypsipyla robusta). These borers lay their eggs on the leaves of the plant, and when the larvae hatch, they tunnel into the stems, where they feed on the inner tissue.

The presence of borers can be identified through various signs and symptoms. Look out for small holes in the stems or trunks of your Weeping Fig plant, sawdust-like frass near these holes, wilting or yellowing leaves, and overall decline in the health of the plant.

Prevention is Key

Preventing borer infestations is easier than treating an existing problem. Here are some preventive measures you can take to protect your Weeping Fig plant:

1. Proper Plant Care

Maintaining a healthy and vigorous plant is crucial in preventing borer attacks. Provide your Weeping Fig with optimal growing conditions, including proper lighting, well-draining soil, and regular watering. Avoid overwatering or allowing the plant to sit in water as this can weaken its defenses against pests.

2. Regular Inspections

Regularly inspect your Weeping Fig plant for any signs of borers or other pests. Examine the stems, trunks, and leaves carefully for any unusual holes, sawdust-like frass, or wilting foliage. Early detection allows for prompt action and minimizes the spread of infestation.

3. Quarantine New Plants

If you are introducing a new Weeping Fig plant into your collection, it is essential to quarantine it for a few weeks before placing it near your existing plants. This will help you identify any potential pest problems and prevent the spread of borers to healthy plants.

Treating Borer Infestations

Despite your best efforts, your Weeping Fig plant may still fall victim to borer infestations. If you notice the signs of borers on your plant, it is crucial to take immediate action to prevent further damage.

1. Pruning Infested Areas

Start by pruning away any heavily infested areas of the Weeping Fig plant. Use clean, sharp pruning shears to remove the affected stems or branches. Make sure to cut at least several inches below the visible damage to ensure complete removal of the larvae.

After pruning, dispose of the infested plant material appropriately, away from your other plants. Bagging and sealing the pruned branches before disposal can help prevent the spread of borers.

2. Insecticidal Soap

Insecticidal soaps are an effective and environmentally friendly option for controlling borers on Weeping Fig plants. These soaps work by suffocating and dehydrating the insects, killing them on contact.

To use insecticidal soap, dilute it according to the manufacturer’s instructions and apply it to the affected areas of the plant using a spray bottle or sponge. Be sure to cover all surfaces thoroughly, including both sides of the leaves and stems. Repeat this treatment every few days until the infestation is under control.

3. Biological Control

Introducing natural enemies of borers, such as parasitic wasps or nematodes, can help control their population. These beneficial insects prey on the borer larvae, reducing their numbers and preventing further damage to your Weeping Fig plant.

Consult with a local nursery or pest control professional to determine the most suitable biological control options for your specific situation.

4. Systemic Insecticides

In severe cases of borer infestations, systemic insecticides may be necessary. These insecticides are absorbed by the plant’s roots and transported throughout the entire system, making them effective against hidden larvae.

When using systemic insecticides, carefully follow the instructions provided by the manufacturer. Take precautions to protect yourself and others by wearing gloves and avoiding contact with the treated plant until the recommended waiting period has passed.

Maintaining Vigilance

Once you have successfully treated a borer infestation on your Weeping Fig plant, it is essential to maintain vigilance to prevent future outbreaks. Continue regular inspections and practice good plant care habits to keep your plant healthy and less susceptible to pests.

Remember that prevention is always better than cure when it comes to pest management. By following the preventive measures outlined in this article and promptly addressing any signs of infestation, you can ensure the long-term health and beauty of your beloved Weeping Fig plant.