How To Get Rid Of Mummy Berry On Blueberries

You can get rid of mummy berry on blueberries by breaking the disease cycle early and staying consistent with cleanup, pruning, and timely fungicide sprays.
 
Mummy berry is a fungal disease that turns your blueberries into hard, grayish-brown fake berries that drop to the ground and cause reinfection the next season.
 
If you’ve been asking how to get rid of mummy berry on blueberries, the good news is that it’s very possible with the right steps.
 
In this post, we’ll walk through how to get rid of mummy berry on blueberries, from sanitation and pruning to spraying schedules and soil management.
 
Let’s get right into it.
 

Why You Need to Get Rid of Mummy Berry on Blueberries

The main reason you want to get rid of mummy berry on blueberries is because the disease won’t go away on its own.
 
Once mummy berry takes hold, those shriveled berries overwinter on the ground and release spores in spring.
 
And those spores infect new shoots, leaves, and flowers, which leads to even more mummy berries the following year.
 
That cycle repeats, and your harvest shrinks more each season.
 

1. It Ruins Your Berries

Infected blueberries stop developing normally and turn into hard, tan or gray mummy-like nuggets.
 
You can’t eat them, and they’re no good for jam, pies, or freezing.
 

2. It Weakens the Bush Over Time

Each round of infection drains energy from your blueberry bush.
 
Shoots die back, flowering drops, and the whole plant gets more vulnerable to other problems.
 

3. It Spreads Fast in Cool, Wet Weather

Mummy berry thrives when spring is rainy and temperatures sit between 50 and 60°F.
 
If your region gets a wet spring, the disease can explode before you even notice the first signs.
 

How to Get Rid of Mummy Berry on Blueberries

Getting rid of mummy berry on blueberries comes down to a mix of cultural practices and well-timed sprays.
 
Here’s exactly what to do.
 

1. Pick Up and Destroy the Mummy Berries

The single most important step is to remove the mummy berries from the ground beneath your bushes.
 
Rake them up in fall and again in early spring before buds break.
 
Don’t just toss them on the compost pile, because spores can still spread.
 
Burn them, bag them in the trash, or bury them deep where they can’t release spores.
 

2. Apply a Layer of Mulch

A fresh layer of mulch creates a barrier that stops mummy berries on the soil from launching spores upward.
 
Use pine bark, wood chips, or pine needles about 2 to 3 inches deep.
 
That physical barrier alone helps reduce new infections dramatically.
 

3. Prune for Better Airflow

Mummy berry loves a crowded, damp canopy.
 
Prune out dead, weak, and crossing branches in late winter while the bush is still dormant.
 
Thinning the center of the plant lets air and sunlight in, which dries out leaves faster and makes it harder for the fungus to take hold.
 

4. Spray at the Right Time

Fungicides like captan, myclobutanil, or a copper-based product can help get rid of mummy berry on blueberries when applied correctly.
 
Start spraying when buds begin to swell and continue every 7 to 10 days through bloom.
 
Always follow the label directions and rotate products so the fungus doesn’t build resistance.
 
And never spray while bees are actively foraging, because most fungicides harm pollinators.
 

5. Avoid Overhead Watering

Wet foliage is the fungus’s best friend.
 
Water at the base of the plant with drip irrigation or a soaker hose instead of sprinklers.
 
Keeping the leaves dry cuts down on spore germination and slows the disease down.
 

6. Plant Resistant Varieties

Some blueberry cultivars handle mummy berry better than others.
 
Rabbiteye and southern highbush types tend to have more resistance than many northern highbush varieties.
 
If you’re planting new bushes and mummy berry is a problem in your area, choosing a resistant variety from the start saves you years of headaches.
 

Preventing Mummy Berry on Blueberries Long Term

Getting rid of mummy berry on blueberries isn’t a one-and-done job.
 
You’ll need to stay on top of it season after season.
 

1. Keep a Clean Orchard Floor

Do a thorough cleanup every fall and again in early spring.
 
Rake up fallen leaves, old berries, and any debris where spores might hide.
 

2. Scout Your Bushes Regularly

Check your blueberry bushes weekly from bud break through harvest.
 
Look for wilting shoots, brown blossoms, and those telltale mummy berries.
 
Catching the disease early means you can act before it spreads.
 

3. Rotate Your Fungicides

Using the same chemical over and over lets the fungus adapt.
 
Switch between different active ingredients throughout the season to keep the disease guessing.
 

4. Space Your Bushes Properly

Give each blueberry bush enough room to grow without crowding its neighbors.
 
Good spacing means better airflow, less humidity around the leaves, and fewer chances for mummy berry to spread.
 

So, How Do You Get Rid of Mummy Berry on Blueberries?

You can get rid of mummy berry on blueberries by removing the mummy berries, mulching the soil, pruning for airflow, spraying fungicide at the right time, and keeping the foliage dry.
 
It takes patience and a full-season approach, but the results are worth it.
 
Do these steps consistently, and your blueberry bushes will reward you with a bigger, healthier harvest year after year.