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To get rid of ants in blueberry plants, you need to target the ants and the pests they’re farming, usually aphids, without harming your bushes.
If you’ve been asking how to get rid of ants in blueberry plants, the good news is that you don’t have to drench your soil in harsh chemicals to win this fight.
Ants on blueberry plants are usually a symptom of a bigger problem, and once you handle that problem, the ants will pack up and leave on their own.
In this post, we’ll walk through why ants show up on blueberry plants, how to get rid of ants in blueberry plants safely, and how to keep them from coming back next season.
Why Ants Show Up on Blueberry Plants
Ants on blueberry plants rarely show up just to snack on your berries.
Here’s what’s really going on when you spot them crawling up your canes.
1. They’re Farming Aphids
The number one reason you find ants in blueberry plants is aphids.
Aphids feed on the tender new growth of blueberry bushes and secrete a sugary liquid called honeydew.
Ants love honeydew, so they actually protect aphids from predators like ladybugs to keep the honeydew flowing.
This means getting rid of ants in blueberry plants starts with getting rid of the aphids they’re tending.
2. Honeydew and Sugary Sap
Even without aphids, ripening blueberries leak sugars that attract ants.
Split or overripe berries are especially tempting, and once ants find an easy food source, they’ll keep coming back.
This is why you’ll often see ants in blueberry plants right around harvest time.
3. Dry, Disturbed Soil
Ants also nest in dry, sandy soil, and blueberry bushes are often planted in exactly that kind of ground.
If you’ve noticed small dirt mounds around the base of your bushes, the colony might be living right under your plants.
How to Get Rid of Ants in Blueberry Plants
Now let’s get into the actual fixes for how to get rid of ants in blueberry plants.
You can get rid of ants in blueberry plants using a mix of these methods below.
1. Knock Out the Aphids First
Since aphids are usually the root cause, start there.
Spray your blueberry bushes with a strong blast of water to knock aphids off the leaves and stems.
For heavier infestations, mix a few drops of dish soap into a spray bottle of water and coat the undersides of leaves where aphids hide.
Once the honeydew source is gone, the ants in your blueberry plants will lose interest fast.
2. Use Diatomaceous Earth Around the Base
Food-grade diatomaceous earth is a safe, effective way to get rid of ants in blueberry plants.
Sprinkle a ring of it around the base of each bush, and it will cut through the ants’ exoskeletons as they cross it.
Reapply after rain or watering, since it only works when dry.
3. Set Ant Baits Away From the Bush
If the colony is large, bait stations can wipe it out at the source.
Place baits a few feet away from your blueberry plants so the ants carry the poison back to the nest instead of onto your berries.
This keeps your harvest safe while still getting rid of ants in blueberry plants.
4. Wrap Trunks With Tanglefoot
For a physical barrier, wrap the base of your blueberry canes with sticky tape or apply a band of insect barrier gel.
This stops ants from climbing up into your blueberry plants in the first place.
Just avoid getting the sticky stuff directly on the bark, since it can damage the plant.
5. Keep the Ground Clean and Dry
Ants love dry, undisturbed soil, so regular watering and mulching helps.
Pick up fallen berries promptly, and clear away weeds and debris around the base of your bushes.
Fewer hiding spots means fewer ants in blueberry plants over time.
6. Try a Borax and Sugar Bait
A homemade bait of borax and sugar mixed with water works well for many gardeners.
The sugar attracts the ants, and the borax slowly kills the colony.
Soak cotton balls in the mixture and place them in small containers near, but not touching, your blueberry plants.
Natural Ways to Keep Ants Off Blueberry Plants
Once you’ve handled the active infestation, prevention keeps ants from returning to your blueberry plants.
Here are a few simple habits worth building into your routine.
1. Companion Planting
Planting mint, tansy, or lavender near your bushes can help repel ants naturally.
These strong-smelling plants confuse the ants’ scent trails and make your blueberry plants less appealing.
2. Vinegar Spray
A 50/50 mix of white vinegar and water sprayed around the base of your bushes erases the pheromone trails ants rely on.
It’s a cheap, pet-safe trick for keeping ants off blueberry plants.
3. Encourage Natural Predators
Ladybugs, lacewings, and birds all help keep aphid numbers down, which in turn keeps ants in blueberry plants from settling in.
Avoid broad-spectrum pesticides that kill these helpful visitors.
4. Check New Plants Before Planting
Always inspect new blueberry bushes for aphids or ants before adding them to your garden.
A quick check now saves you from fighting ants in blueberry plants later.
So, How Do You Get Rid of Ants in Blueberry Plants?
To get rid of ants in blueberry plants, you deal with the aphids first, then use barriers, baits, and clean gardening habits to keep ants away.
If you’ve been wondering how to get rid of ants in blueberry plants without dousing your berries in chemicals, the methods above have you covered.
You can get rid of ants in blueberry plants naturally and protect your harvest at the same time.
Hope this post has helped you with exploring how to get rid of ants in blueberry plants and the best ways to keep them from coming back.