What Plants Repel Tomato Hornworms

Tomato hornworms are one of the most destructive pests that can affect your tomato plants. Their voracious appetite for leaves and fruit can easily decimate an entire crop. But thankfully, there are some plants that can help keep these pests away. Here are some of the best plants that repel tomato hornworms.

1. Marigolds

Marigolds are one of the most effective plants for repelling tomato hornworms. These colorful flowers deter many pests, including hornworms. They emit a smell that is repulsive to the pests, making them less likely to visit your plants. Additionally, marigolds attract beneficial insects like ladybugs and lacewings that can help keep pests at bay.

2. Borage

Borage, also known as starflower, is a beautiful plant with blue, star-shaped flowers. It is also an excellent plant for repelling tomato hornworms. The flowers and leaves of borage contain compounds that deter many pests, including hornworms. Additionally, borage is a great attractant for beneficial insects like bees, butterflies, and predatory wasps, which can help keep the hornworm population in check.

3. Peppermint

Peppermint is an herb that has been used for centuries to repel pests. Its strong scent is a natural deterrent for many insects, including tomato hornworms. You can plant peppermint in your garden or use it to create a natural pest spray. Simply mix some fresh peppermint leaves with water and let them steep overnight. Then, strain the mixture and use it to spray your plants.

4. Sage

Sage is another herb that has been used for centuries to repel pests. It contains compounds that are unattractive to many insects, including hornworms. You can plant sage in your garden or use it to create a natural pest spray. Simply boil some fresh sage leaves in water for a few minutes, then let the mixture cool. Strain out the leaves and use the liquid to spray your plants.

5. Nasturtiums

Nasturtiums are beautiful flowers that come in a variety of colors, from bright red to pale yellow. They are also an excellent plant for repelling tomato hornworms. The leaves and flowers of nasturtiums contain compounds that deter many pests, including hornworms. Additionally, nasturtiums attract beneficial insects like aphid-eating ladybugs and predatory wasps that can help keep pests at bay.

Conclusion

If you want to protect your tomato plants from hornworms, it's important to choose the right plants to help repel them. Marigolds, borage, peppermint, sage, and nasturtiums are all excellent choices for keeping these pests away. By planting these plants in your garden or using them to make natural pest sprays, you can help keep your tomato plants healthy and pest-free.