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Yes, squash bugs will eat tomatoes and they can absolutely wreck your crop if you’re not paying attention.
If you’ve been asking yourself “will squash bugs eat tomatoes,” the short answer is a loud, frustrating yes.
These pests aren’t picky eaters, and while they love squash and pumpkins the most, tomatoes are often on their menu too.
Squash bugs will eat tomatoes and feed on the leaves, stems, and even the fruit itself, especially when their preferred plants run out.
This is why so many gardeners notice sudden damage on their tomato plants and blame everything but the real culprit.
In this post, we’ll take a closer look at why squash bugs will eat tomatoes, the kind of damage they cause, and how to stop them before they take over your garden.
Why Squash Bugs Will Eat Tomatoes
Squash bugs will eat tomatoes for a few very practical reasons, and understanding them makes the problem much easier to manage.
1. They’re Opportunistic Feeders
Squash bugs will eat tomatoes because they’re opportunistic feeders.
Their favorite hosts are plants in the cucurbit family, like zucchini, squash, and pumpkins, but when those plants dry up, get harvested, or lose their appeal, squash bugs will eat tomatoes instead.
They don’t discriminate much when food gets scarce.
2. Tomato Plants Offer Sap-Rich Tissue
Squash bugs feed by piercing plant tissue with a needle-like mouthpart and sucking out the sap.
Tomato stems, leaves, and even young fruit are packed with the fluids they need to survive.
So yes, squash bugs will eat tomatoes because your plants are basically a giant juice box to them.
3. Late-Season Garden Changes Push Them Over
By late summer, many squash plants start to decline.
As those plants wither, squash bugs will eat tomatoes and any other tender crops they can find.
This is why tomato damage from squash bugs tends to spike toward the end of the season.
It’s not random, it’s just their survival instinct kicking in.
What Damage Do Squash Bugs Cause to Tomatoes?
When squash bugs will eat tomatoes, the damage shows up in several telltale ways.
1. Yellowing and Wilting Leaves
One of the first signs that squash bugs will eat tomatoes is yellowing and wilting leaves.
This happens because the bugs drain sap from the plant, which interrupts nutrient flow.
Leaves may look scorched or start drooping even when the soil is perfectly moist.
2. Speckled or Spotted Stems
If squash bugs will eat tomatoes, they often leave behind tiny specks or dark spots on the stems.
These marks are feeding wounds that can weaken the plant over time.
In severe cases, the stems become brittle and snap easily.
3. Deformed or Damaged Fruit
When squash bugs will eat tomatoes, they sometimes go straight for the fruit.
Feeding on young tomatoes can cause scars, sunken spots, or uneven ripening.
It’s not pretty, and it can ruin an otherwise perfect harvest.
4. Increased Risk of Disease
Every time squash bugs will eat tomatoes, they create open wounds.
Those wounds are easy entry points for bacteria and fungi.
This is one of the most overlooked reasons squash bugs will eat tomatoes and cause long-term problems.
How to Stop Squash Bugs From Eating Tomatoes
If you’re convinced squash bugs will eat tomatoes, the next step is learning how to protect your plants.
1. Inspect Plants Regularly
Since squash bugs will eat tomatoes, early detection is everything.
Check the undersides of leaves and along stems where they like to hide.
Look for clusters of eggs too, which are usually bronze or reddish-brown.
2. Remove Eggs and Adults by Hand
When squash bugs will eat tomatoes, handpicking is still one of the most effective controls.
Drop adults and nymphs into a bucket of soapy water.
Crush any egg clusters you find before they hatch.
3. Use Row Covers Early
Floating row covers can keep squash bugs off young tomato plants.
Just remember to remove them when flowers appear so pollinators can do their job.
This simple barrier stops squash bugs from ever getting close enough to eat tomatoes in the first place.
4. Keep the Garden Clean
Squash bugs will eat tomatoes more aggressively when they have places to hide.
Clear away plant debris at the end of the season.
Remove old vines and weeds that serve as shelter.
5. Encourage Natural Predators
Spiders, ground beetles, and some parasitic wasps help keep squash bugs in check.
A balanced garden ecosystem makes it harder for squash bugs to eat tomatoes unchecked.
Avoid broad-spectrum pesticides that wipe out these helpful insects.
So, Will Squash Bugs Eat Tomatoes?
Squash bugs will eat tomatoes, and they can cause real damage if left alone.
They feed on sap, weaken plants, and open the door to disease.
The good news is that with regular inspection and a few smart garden habits, you can stop squash bugs from eating tomatoes.
Stay consistent, and your tomato harvest will thank you.