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Earwigs can eat squash plants, and they often do when conditions are right.
If you’ve been asking yourself “do earwigs eat squash plants?” because you’ve noticed ragged holes, chewed leaves, or damage on your squash vines, then the answer is a frustrating yes.
Earwigs are nocturnal feeders that chew on tender squash leaves, stems, and even seedlings.
However, they don’t destroy squash plants the way some pests do, and their feeding habits are more complex than most gardeners realize.
In this post, we’ll explore whether earwigs eat squash plants, when they’re most damaging, how to spot the signs, and how to stop them from wrecking your harvest.
By the end, you’ll know exactly how to protect your squash from these pincered pests.
Do Earwigs Eat Squash Plants? Yes, Here’s Why
Do earwigs eat squash plants?
They absolutely do, and there are a few reasons why squash is such an attractive target for them.
1. Earwigs Love Tender, Soft Plant Tissue
Earwigs eat squash plants because squash leaves, stems, and seedlings are soft and easy to chew.
Young squash transplants are especially vulnerable since their tissue hasn’t toughened up yet.
This is why earwig damage on squash plants is most severe right after planting or when new growth appears.
2. Earwigs Are Opportunistic Feeders
Earwigs eat squash plants not because squash is their favorite food, but because it’s available.
They’re omnivores that feed on aphids, mites, insect eggs, and decaying plant matter.
So when squash plants are nearby and easy to reach, earwigs will happily nibble on them too.
This makes squash plants a convenient snack rather than a primary target.
3. Earwigs Feed at Night When You’re Not Looking
One reason do earwigs eat squash plants goes unnoticed is that earwigs feed mostly at night.
During the day, they hide in dark, moist spots like mulch, soil cracks, and the crevices of squash leaves.
By the time you check your garden, they’ve already finished their meal and disappeared.
That’s why many gardeners don’t realize earwigs eat squash plants until the damage is obvious.
Signs That Earwigs Are Eating Your Squash Plants
How can you tell if earwigs eat squash plants versus other pests?
Look for these specific signs of earwig damage on squash.
1. Irregular Holes in Leaves
When earwigs eat squash plants, they chew irregular holes through leaves rather than eating from the edges.
This is different from caterpillars, which usually feed from the leaf margins inward.
If you see lots of small, ragged holes scattered across your squash leaves, earwigs are likely the culprits.
2. Damage to Seedlings and Stems
Earwigs eat squash seedlings down to the stem, sometimes killing young plants overnight.
They also chew on the tender stems of mature squash plants, which weakens the plant and reduces yield.
If your squash seedlings keep disappearing or wilting for no reason, earwigs may be feeding on them.
3. Nighttime Presence on Squash Plants
The best way to confirm that earwigs eat squash plants is to check your garden at night.
Grab a flashlight and inspect your squash leaves and stems after dark.
If you spot slender brown insects with pincers crawling around, then yes, earwigs are eating your squash plants.
How to Stop Earwigs From Eating Squash Plants
Now that you know earwigs eat squash plants, here’s how to protect your crop.
1. Reduce Moisture and Hiding Spots
Earwigs eat squash plants more aggressively when there’s plenty of moisture and shelter.
Remove mulch, leaf litter, and debris around your squash plants to eliminate their hiding spots.
Water in the morning instead of evening to keep the soil surface drier at night.
2. Set Up Earwig Traps
Since earwigs eat squash plants at night, trapping them is an effective control method.
Roll up damp newspaper or cardboard tubes and place them near your squash plants.
Earwigs will crawl inside to hide during the day, and you can shake them out into soapy water.
3. Use Diatomaceous Earth Around Squash Plants
Sprinkle food-grade diatomaceous earth around the base of your squash plants.
This powdery substance damages the exoskeleton of earwigs that eat squash plants, eventually killing them.
Reapply after rain or watering since it loses effectiveness when wet.
4. Encourage Natural Predators
Birds, toads, and ground beetles all prey on earwigs that eat squash plants.
Attract these beneficial creatures by providing habitat like birdhouses, shallow water dishes, and undisturbed soil areas.
This won’t eliminate earwigs overnight but helps keep their numbers in check.
5. Apply Insecticidal Soap or Neem Oil
If earwigs eat squash plants despite your efforts, insecticidal soap or neem oil can help.
Spray your squash plants in the evening when earwigs are active and more likely to come into contact with the treatment.
Always follow label instructions and avoid spraying beneficial pollinators.
So, Do Earwigs Eat Squash Plants?
Earwigs do eat squash plants, especially tender leaves, seedlings, and stems.
While they aren’t the worst pest your squash will face, they can still cause real damage if left unchecked.
The good news is that earwigs eat squash plants mostly at night, which means you can catch them in the act and stop them before they ruin your harvest.
Use traps, reduce moisture, and encourage predators to keep earwigs from eating your squash plants.
With a little vigilance, your squash will thrive despite these pincered pests.