Chipmunks climb tomato plants to eat ripe fruits, leaving bite marks near stems. If you’ve noticed small, jagged holes in your tomatoes, these little rodents might be the culprits. The short answer to the question do chipmunks eat tomato plants is yes—they target both the fruits and sometimes the seedlings.
These critters are active during the day, so you might spot them scurrying around your garden. They prefer ripe, soft tomatoes but will nibble on green ones if food is scarce. Understanding their behavior helps you protect your crop.
In this guide, we’ll cover how chipmunks damage plants, signs to look for, and practical ways to stop them. You’ll also learn why they go after tomatoes in the first place.
Do Chipmunks Eat Tomato Plants
Yes, chipmunks do eat tomato plants, but their focus is usually on the fruit. They are omnivores, so they eat seeds, insects, and berries. Tomatoes are a sweet, juicy treat that they can’t resist.
Unlike squirrels, chipmunks don’t dig up entire plants. They climb stems or hop onto low branches to reach the fruit. You’ll often see bite marks that look like small, crescent-shaped gouges.
In some cases, chipmunks eat young seedlings or tender leaves. This happens when other food sources are limited. But the main damage is to ripening tomatoes.
How Chipmunks Damage Tomato Plants
Chipmunks cause two types of damage: direct fruit loss and plant stress. Here’s what to watch for:
- Bite marks on tomatoes: Small, shallow holes near the stem or side of the fruit.
- Missing seedlings: Young plants may be pulled up or chewed at the base.
- Scattered fruit pieces: Chipmunks often take a few bites and move on.
- Trampled stems: Climbing can break branches or bend plants.
Damage is worst when tomatoes are nearly ripe. Chipmunks have strong jaws, so they can puncture even thick-skinned varieties.
Signs Chipmunks Are In Your Garden
Spotting chipmunks early saves your harvest. Look for these clues:
- Small holes in the soil near tomato plants (from burrowing).
- Droppings that are small, dark, and rice-shaped.
- Chewed fruit with no other pests around.
- Scampering sounds or quick movements at dawn or dusk.
- Bare patches where seedlings were planted.
Chipmunks are shy but bold when hungry. They often return to the same spot if food is easy to get.
Why Chipmunks Target Tomato Plants
Chipmunks eat tomatoes for the same reason we do: they taste good. The high water and sugar content makes them a perfect snack. But there are other factors too.
Tomato plants provide cover. The dense foliage hides chipmunks from predators like hawks and cats. They feel safe while eating.
Also, chipmunks store food. They have cheek pouches to carry seeds and fruit back to their burrows. A single chipmunk can take several tomatoes in one trip.
What Attracts Chipmunks To Your Garden
Your garden might be a chipmunk paradise. Here’s what draws them in:
- Easy access to water (drip irrigation or puddles).
- Mulch or ground cover that hides burrows.
- Bird feeders that spill seeds onto the ground.
- Overgrown grass or shrubs near the garden.
- Ripe fruit left on the vine too long.
If you have these conditions, chipmunks are more likely to visit. Removing attractants is the first step in control.
How To Protect Tomato Plants From Chipmunks
You have several options to keep chipmunks away. Some methods are simple, others require more effort. Start with the easiest ones.
Physical Barriers
Fencing is the most reliable method. Use hardware cloth or chicken wire with small holes (1/4 inch or less). Bury the fence 6 inches deep to stop digging.
For individual plants, use wire cages or cloches. These protect seedlings and low-growing fruit. Make sure the mesh is tight enough that chipmunks can’t squeeze through.
Another option is netting. Drape bird netting over tomato cages. Secure it at the bottom with rocks or stakes. Chipmunks will try to chew through, so check for holes.
Repellents And Deterrents
Repellents use smell or taste to discourage chipmunks. Common options include:
- Predator urine (available at garden stores).
- Hot pepper spray (mix cayenne with water and soap).
- Garlic or onion sprays.
- Commercial repellents with thiram or capsaicin.
Apply repellents after rain or watering. Reapply every few days for best results. Chipmunks may get used to them over time, so rotate products.
Ultrasonic devices claim to scare chipmunks with high-pitched sounds. Results vary. Some gardeners find them useless, while others see a difference.
Trapping And Removal
Trapping is effective but requires patience. Use live traps baited with peanut butter, sunflower seeds, or small pieces of tomato. Place traps near burrows or along fence lines.
Check traps every few hours. Chipmunks can die from stress or dehydration if left too long. Relocate trapped animals at least 5 miles away, but check local laws first.
Some areas require a permit for relocation. In some states, it’s illegal to release chipmunks on public land. Always follow regulations.
Natural Predators
Encouraging predators helps control chipmunk populations. Here’s what works:
- Install a birdhouse for owls or hawks.
- Let cats or dogs patrol the garden (supervised).
- Attract snakes (garter snakes eat chipmunks).
- Place perches for raptors near the garden.
Predators won’t eliminate chipmunks completely, but they reduce numbers. They also deter other pests like mice and voles.
Companion Planting And Garden Design
Certain plants repel chipmunks naturally. Strong-smelling herbs like mint, lavender, and rosemary confuse their sense of smell. Plant them around tomato beds.
Marigolds also work. Their scent masks the smell of ripe tomatoes. Plus, they attract beneficial insects.
Design your garden to limit hiding spots. Keep grass short, remove brush piles, and trim shrubs. Chipmunks prefer areas with cover, so open spaces make them nervous.
Seasonal Strategies
Timing matters. In spring, chipmunks emerge from hibernation hungry. Protect seedlings with cloches or row covers.
In summer, focus on ripening fruit. Pick tomatoes as soon as they turn color. Don’t leave fallen fruit on the ground.
In fall, chipmunks stock up for winter. Remove all leftover vegetables and debris. Seal gaps in sheds or garages where they might nest.
Common Mistakes To Avoid
Many gardeners try things that don’t work. Here’s what to skip:
- Mothballs: Toxic to pets and children, and chipmunks ignore them.
- Human hair: Not effective long-term.
- Wind chimes: Noise doesn’t bother chipmunks.
- Poison baits: Dangerous for wildlife and pets.
- Overwatering: Soft soil makes it easier for chipmunks to dig.
Stick to proven methods. Combine barriers with repellents for the best results.
Do Chipmunks Eat Other Garden Plants
Yes, chipmunks eat more than tomatoes. They target strawberries, peppers, cucumbers, and melons. They also eat flower bulbs and seeds.
In vegetable gardens, they prefer soft-skinned fruits. Hard vegetables like carrots or potatoes are less appealing, but they may nibble if hungry.
Chipmunks also eat insects, so they can be beneficial in small numbers. The problem is when their population grows.
Comparing Chipmunks To Other Pests
It’s easy to confuse chipmunk damage with other animals. Here’s how to tell the difference:
- Squirrels: Larger bite marks, often take whole fruits.
- Birds: Peck holes that are clean and round.
- Raccoons: Tear plants apart, leave mess.
- Deer: Eat leaves and stems, not just fruit.
Chipmunk damage is usually neat and limited to the fruit. They rarely eat entire plants.
Long-Term Control
Preventing chipmunks from becoming a problem is easier than dealing with an infestation. Here are long-term tips:
- Seal holes in foundations and walls.
- Remove rock piles and wood stacks near the garden.
- Use gravel or stone mulch instead of wood chips.
- Install motion-activated sprinklers.
- Keep bird feeders away from the garden.
Regular garden maintenance reduces hiding spots. Chipmunks won’t stay if there’s no shelter.
Frequently Asked Questions
Do Chipmunks Eat Tomato Plants At Night?
No, chipmunks are diurnal, meaning they are active during the day. Nighttime damage is likely from raccoons, opossums, or slugs.
Will Chipmunks Eat Green Tomatoes?
Yes, they will eat green tomatoes if ripe ones aren’t available. Green tomatoes are less appealing but still a food source.
How Can I Tell If Chipmunks Or Birds Are Eating My Tomatoes?
Birds leave clean, round holes. Chipmunks leave jagged, irregular bite marks near the stem. Birds also peck at fruit on the ground.
Do Chipmunks Eat Tomato Leaves?
Rarely. They prefer fruit, but may nibble leaves if other food is scarce. Leaf damage is more likely from caterpillars or beetles.
What Is The Best Repellent For Chipmunks?
Hot pepper spray is a common home remedy. Commercial repellents with capsaicin or thiram also work. Reapply after rain for best results.
Final Thoughts
Chipmunks can be a nuisance, but they don’t have to ruin your tomato harvest. With barriers, repellents, and good garden habits, you can keep them away.
Start by identifying the damage. Then choose a method that fits your garden size and lifestyle. Remember, chipmunks are persistent, so you may need to try several tactics.
Protecting your tomatoes takes effort, but the reward is a full harvest. Enjoy your homegrown tomatoes without sharing them with these little critters.