Updated: June 17, 2023

Hummingbird plants are a popular choice for many gardeners due to their vibrant flowers and ability to attract hummingbirds. However, these plants are also susceptible to an insect pest known as borers. Borers can cause significant damage to your hummingbird plant if left untreated. In this article, we will explore various methods to get rid of borers and protect your hummingbird plant.

What are Borers?

Borers are a type of insect larvae that tunnel into the stems and trunks of plants. They belong to different insect families, including moths, beetles, and wasps. Borers are particularly attracted to weakened or stressed plants, making your hummingbird plant a prime target if it is not in optimal health.

Identifying Borer Damage

Before you can effectively get rid of borers on your hummingbird plant, it is important to be able to identify the signs of borer damage. Some common indicators include:

  1. Wilting or drooping leaves: Borers disrupt the flow of nutrients and water within the plant, causing the leaves to wilt or droop.
  2. Yellowing or discolored foliage: Borers can weaken the plant’s ability to photosynthesize, leading to yellowing or discoloration of the leaves.
  3. Presence of holes or tunnels: Look for small holes or tunnels in the stems or trunks of your hummingbird plant. These are often accompanied by sawdust-like frass around the area.
  4. Stunted growth: If your hummingbird plant is not growing as expected or appears stunted, it may be due to borer damage.

Prevention is Key

Preventing borer infestations is always easier than treating them. Here are some preventive measures you can take to protect your hummingbird plant:

1. Proper Plant Care

Maintaining the overall health of your hummingbird plant is essential in deterring borers. Ensure that your plant receives adequate sunlight, water, and nutrients. Avoid over-fertilization, as it can stress the plant and make it more susceptible to pests. Regularly inspect your plant for signs of stress or disease and address any issues promptly.

2. Pruning

Pruning is an effective way to remove infested branches and prevent the spread of borers. Prune away any dead or dying branches, as they are often more susceptible to infestation. Additionally, remove any suckers or low-hanging branches that may provide easy access for borers.

When pruning, make sure to use clean and sharp tools to minimize damage to the plant. After each cut, clean your tools with a disinfectant solution to prevent the transfer of any potential borer larvae.

3. Mulching

Mulching around the base of your hummingbird plant can help maintain soil moisture and temperature, while also acting as a physical barrier against borers. Apply a layer of organic mulch, such as wood chips or straw, around the plant’s base, ensuring not to pile it up against the stem. This will discourage borers from laying their eggs near the plant.

4. Beneficial Insects

Encouraging beneficial insects in your garden can provide natural control against borers. Some insects, such as parasitic wasps and predatory beetles, feed on borer larvae, helping to keep their population in check. Avoid using broad-spectrum insecticides that may harm these beneficial insects.

Consider planting flowers and herbs that attract these beneficial insects, such as yarrow, dill, or marigolds. Providing them with a suitable habitat will increase their presence in your garden and aid in controlling borer infestations.

Treating Borer Infestations

If preventive measures fail and your hummingbird plant becomes infested with borers, it is important to take immediate action to minimize the damage. Here are some treatment options to consider:

1. Insecticides

In severe cases, insecticides may be necessary to control borer infestations. Choose an insecticide specifically labeled for borers and follow the instructions carefully. Apply the insecticide directly to the affected areas of your hummingbird plant, focusing on the stems and trunks where the borers are active.

It is important to note that insecticides can have negative effects on beneficial insects and other wildlife, so use them sparingly and only when necessary. Always read and follow the instructions provided by the manufacturer.

2. Biological Control

Biological control methods involve using natural enemies of borers to manage their populations. One effective biological control method is the use of nematodes, microscopic roundworms that infect and kill borer larvae. Nematodes can be purchased from garden centers or online and applied to the soil around your hummingbird plant according to the instructions.

3. Manual Removal

For smaller infestations, manual removal of borers can be effective. Carefully inspect your hummingbird plant for signs of borers, such as holes or frass, and remove them using a small knife or tweezers. Make sure to remove all affected plant material and dispose of it away from your garden to prevent reinfestation.

Conclusion

Borer infestations can pose a significant threat to your hummingbird plant’s health and beauty. By implementing preventive measures and promptly treating any infestations, you can effectively get rid of borers and protect your hummingbird plant. Remember to always monitor your plants closely for signs of stress or pest activity, and address any issues before they escalate. With proper care and attention, your hummingbird plant will continue to thrive and attract these beautiful backyard visitors.