How to Keep Hornworms off of Tomato Plants

Tomato plants are a popular gardening item. They're easy to grow and produce a bountiful harvest. However, one pest that can wreak havoc on tomato plants is the hornworm. These large green caterpillars can eat through the leaves and fruits of tomato plants, leaving behind a trail of destruction. If you're looking for ways to keep hornworms off of your tomato plants, here are a few methods to try.

1. Handpick the Hornworms

The easiest way to get rid of hornworms is to handpick them off your tomato plants. Go out early in the morning or late in the evening when the hornworms are most active. Look for the large green caterpillars with white stripes on their sides. They're easy to spot, but you'll need to be careful when picking them off the plants as they have large spikes on their bodies. Drop the hornworms in a bucket of soapy water to kill them.

2. Introduce Beneficial Insects

You can also introduce beneficial insects to your garden to help control the hornworm population. One common insect is the braconid wasp. These tiny wasps lay their eggs on the hornworms, which hatch and feed on the caterpillar. This can significantly reduce the number of hornworms in your garden. You can also attract other beneficial insects like ladybugs and lacewings, which feed on hornworms and other garden pests.

3. Use Natural Repellents

Another option is to use natural repellents to keep hornworms off of your tomato plants. One repellent is diatomaceous earth, a powdery substance made from fossilized diatoms. Sprinkle this around your plants to create a barrier that hornworms won't want to cross. You can also use neem oil, a natural insecticide that repels hornworms and other pests. Mix a small amount of neem oil with water and spray your plants as needed.

4. Plant Companion Plants

Planting companion plants in your garden can also help keep hornworms off of your tomato plants. Some good companion plants to try include marigolds, basil, and borage. These plants release scents that are unappealing to hornworms and other garden pests. Plus, they add some colorful and edible plants to your garden.

5. Create Physical Barriers

If all else fails, you can create physical barriers to keep hornworms off of your tomato plants. One option is to use floating row covers, which are lightweight fabric coverings that allow sunlight and water to pass through while keeping pests out. You can also use cages or netting around your plants to keep hornworms and other pests away.

In conclusion, hornworms can be a frustrating pest to deal with in your tomato garden. However, there are several methods you can try to keep them off your plants. From handpicking the caterpillars to using natural repellents, there's a solution for every gardener. By taking steps to protect your tomato plants, you can enjoy a bountiful harvest all season long.