Introduction

Spiders are common pests that can infest tomato plants, causing damage and reducing yields. While spiders are helpful for controlling other pests, too many spiders on tomato plants can be harmful. Here are some ways to get rid of spiders on tomato plants.

Remove Weeds and Debris

Tomato plants provide a great environment for spiders to build their webs. Weeds and debris around the plant base can provide cover for spiders and their prey. Remove any weeds and debris within a 1-2 foot radius of the base of the plant to reduce spider populations.

Pro tip: Use a mulch cover on the soil surface around tomato plants to suppress weed growth and reduce spider populations.

Grow Companion Plants

Growing certain plants near your tomato plants can help to repel insects, including spiders. Marigolds, chamomile, and basil are known to have insect-repelling properties. Plant these companion plants around the perimeter of your tomato garden to keep spiders away.

Pro tip: If you’re growing tomatoes in a container, add companion plants to the same container to create a mini ecosystem.

Use Natural Repellents

There are several natural repellents that are effective at reducing spider populations. These include essential oils like peppermint, lemon, and eucalyptus, as well as vinegar and dish soap.

Pro tip: Mix 1-2 teaspoons of essential oil or vinegar with a quart of water in a spray bottle and apply around the base of your tomato plants. Repeat every few days until spider populations decrease.

Introduce Predators

While spiders may be pests on tomato plants, they are also natural predators that help to control other insects. Consider introducing predator species like mantises, ladybugs, or lacewings to your garden to increase natural pest control.

Pro tip: Purchase predator species from a garden center or online retailer and follow instructions for safe and effective release.

Use Chemical Control

If all else fails, chemical control may be necessary to get rid of spiders on tomato plants. Insecticidal soap or pyrethrin-based sprays can be effective at killing spider populations, but use caution and follow instructions carefully to avoid harming beneficial insects.

Pro tip: Avoid using chemical control methods on or near flowering plants to avoid harm to pollinators like bees.

Conclusion

Spiders can be a nuisance on tomato plants, but there are several ways to get rid of them. Removing weeds and debris, growing companion plants, using natural and artificial repellents, introducing predators, and using chemical control as a last resort can all help to reduce spider populations and protect your tomato crops.