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20 Common Tomato Pests That Will Damage Your Tomato Plants

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We’ve all been there. You’re strutting around your garden, basking in the joy of your lush tomato plants, when suddenly, you spot a leaf that looks a little off. Before you know it, you’re waist-deep in a full-blown tomato nightmare!

Pests, those tiny evildoers, are out to take down your perfect tomato plants. I, too, have faced the perilous plight of tomato pest invasions, but fear not, fellow tomato growers! Together, we’ll identify the top 20 culprits who are out to ruin our tomato-filled summers.

1. Tomato Hornworms:

Think about the scariest monster movie you’ve ever seen. Got it? Good. Now, imagine the villain is a giant, green caterpillar with a creepy horn on its back. This isn’t a figment of a horror movie director’s imagination, but a reality for many tomato growers – the Tomato Hornworm.

These caterpillars can grow up to 4 inches long, and their appetite is insatiable. In a few short days, they can strip a tomato plant of its leaves and small fruits.

So, remember my advice – if you see one, show it the exit before it decides to make a horror sequel out of your tomato plants.

2. Aphids:

Picture this: an army of tiny, green critters that stick to the underside of your tomato leaves, sucking out sap and causing general chaos. That’s aphids for you! They are not solitary creatures; they usually arrive in numbers that would rival any block party.

Worse still, they can cause significant damage, stunting your plant’s growth, curling the leaves, and spreading viruses. It’s definitely not the kind of party you want happening in your garden.

3. Stink Bugs:

With a name like “Stink Bugs”, you’d think these pests would be nature’s outcasts. Unfortunately, they’ve got quite the affinity for our tomato plants.

These shield-shaped insects insert their needle-like mouths into the tomato fruit and suck out the juices, leading to discolored, corky areas on the fruit. The result? Tomatoes that are as unappetizing to look at as the name “stink bug” is to say.

4. Whiteflies:

Beware, these are not the charming garden sprites they sound like! Whiteflies are tiny, sap-sucking insects that cause all sorts of problems for your tomato plants.

When they feed, they excrete a sweet, sticky substance called honeydew, which can lead to sooty mold – a black, powdery fungus that can coat your plant’s leaves, blocking out necessary sunlight. It’s a pest-induced eclipse, and it’s not the enchanting garden magic you were hoping for.

5. Cutworms:

Don’t let their name fool you – they might sound harmless, but they’re nothing less than tiny, plant-destroying assassins.

Cutworms are nocturnal caterpillars that feed on the stems of young plants, effectively ‘cutting’ them down like a lumberjack in action. Waking up to a garden of fallen tomato plants is not how any of us want to start our day.

6. Flea Beetles:

Imagine someone took a shotgun and blasted your tomato leaves, leaving them riddled with tiny holes. That’s what it looks like after a flea beetle visit.

These tiny beetles, that can jump like fleas when disturbed, will give you more than just a small headache. The damage they cause can lead to the loss of photosynthesis and, consequently, weakened plants.

7. Tomato Fruitworms:

Picture a perfect tomato. Now imagine a worm has turned it into a multi-room apartment complex. Tomato fruitworms are the culprits!

These pests burrow into your tomatoes, causing rot and making them inedible. I guess the fruitworm didn’t get the memo about our plans for that perfect tomato salad.

8. Nematodes:

Root-knot nematodes are microscopic worms that live in the soil and invade the roots of your tomato plants. Their stealthy invasion can lead to stunted growth, wilting, and eventually, the demise of the plant.

You won’t see these pests coming until the damage is already done. It’s an underground ambush that no tomato plant deserves.

9. Spider Mites:

Just when you thought spiders couldn’t get any scarier, meet the Spider Mite. These tiny, microscopic mites create silk webbing and feed on your plants, causing the leaves to turn yellow with speckled discoloration.

Who invited them to weave their destructive tales in our tomato patches?

10. Leafminers:

These pests are tiny larvae that use your tomato leaves as their personal canvas, tunneling through the tissue and leaving squiggly lines in their wake.

The result is a leaf that looks like it’s been subjected to some kind of deranged etch-a-sketch experiment. It’s an art exhibit you didn’t sign up for and certainly don’t want.

11. Colorado Potato Beetles:

You would think with a name like that, they’d stick to potatoes, right? Wrong. These beetles are not picky, and your tomato plants are on their menu.

Dressed in their eye-catching yellow and black stripes, they cause significant damage to your plants by munching on their leaves.

12. Tomato Pinworms:

These sneaky larvae are like the childhood friend who loved hide-and-seek a little too much. Except, instead of hiding behind trees, they tunnel into your tomato plant’s leaves and fruit, causing extensive damage and rot.

It’s a game that’s fun for the pinworm but a nightmare for you and your plants.

13. Broad Mites:

These microscopic pests might be small, but their impact is immense. They infest the leaves and fruits of your tomato plants, causing the foliage to twist and harden, looking as if it’s auditioning for a role in a Tim Burton film.

Trust me, waking up to your plants looking like they belong in “The Nightmare Before Christmas” is not how you want to start your day!

14. Thrips:

Picture tiny, winged pests that are so quick you’ll think they’ve enrolled in a “Fast and Furious” sequel. That’s thrips for you!

These little nuisances suck out plant juices, leaving silver streaks and stunted growth in their wake. Their need for speed and destruction leaves your plants paying the price.

15. Tarnished Plant Bugs:

These bugs might sound like they’ve just got a little dirt on them, but they are a lot more harmful than they sound. They inject toxins into your plants that cause the growing tips to blacken and curl. Your tomato plants go from thriving to tarnished in no time.

16. Armyworms:

Meet the soldiers of the pest world. Armyworms get their name from their feeding habit – they eat in groups and can strip your tomato plants of their foliage faster than you can whip up a bowl of tomato soup. If only their discipline was directed elsewhere!

17. Tomato Russet Mites:

These tiny mites are microscopic, but the damage they cause is far from it. They cause leaves to bronze and shrivel, a sad sight for any tomato plant lover.

It’s a case of small but mighty that leaves your plants looking more like a dried flower arrangement than a vibrant vegetable patch.

18. Cabbage Loopers:

These pests have a name that suggests they prefer cabbage, but they don’t discriminate against a juicy tomato plant.

They chew large holes in the leaves and can even burrow into the tomatoes themselves. Imagine them as that unexpected dinner guest who not only eats all the food but also the plates!

19. Garden Slugs:

Nothing will ruin your day faster than reaching for a fresh tomato only to find a slimy garden slug has beaten you to it.

These slow-moving pests love the leaves and fruits of your tomato plants and can cause significant damage. It’s not the surprise you were hoping for when harvesting your tomatoes!

20. Tomato Psyllids:

Last, but not least, are the Tomato Psyllids. These tiny pests might not look like much, but they can cause yellowing leaves, stunted growth, and even change the shape of your plant’s leaves to resemble a potato.

A small pest with a big impact, they’re not the transformation you were hoping for with your tomato plants.

How to Get Rid of Tomato Plant Pests

Now that we’ve identified our foes, it’s time for counterattacks! You didn’t think I’d leave you hanging in the ‘Attack of the harmful Tomato Pests,’ did you?


For larger pests like hornworms and beetles, sometimes the best defense is a good offense – just pick ’em off! It’s not the most glamorous job, but it’s oddly satisfying, believe me!

Natural Predators:

Lacewings, ladybugs, and birds are just some of the garden heroes that can help you in the fight. It’s like calling in the Avengers!

Trap Crops:

Planting crops that pests prefer can lure them away from your precious tomatoes. A sacrificial offering, if you will. We salute you, brave trap crops!

Organic Pesticides:

For smaller pests, organic pesticides like neem oil, insecticidal soap, and diatomaceous earth can be effective. Remember, always read the label!

Crop Rotation:

Changing where you plant tomatoes each year can confuse pests and interrupt their lifecycle. Gotcha, nematodes!

Healthy Soil:

Good soil promotes healthy plants that can withstand pests better. Compost and mulch are your friends.


Adequate watering can deter pests like spider mites that thrive in dry conditions. It’s like throwing a wrench into their evil plans!

Remember, the key to winning the battle is vigilance. Keep an eye out for the first signs of trouble, and act swiftly. We’re in this together, tomato growers!

Whether you’re a seasoned gardener or a newbie just starting out, understanding these pests and knowing how to combat them can save you a whole lot of heartache and, more importantly, your precious tomato harvest.

The world of tomato gardening can be a battlefield, but armed with this knowledge, you can win the war against tomato pests. So, let’s get out there and defend our tomato honor!

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