How To Get Rid Of Worms In Walnuts

How to Get Rid of Worms in Walnuts

To get rid of worms in walnuts, you need to act fast and use a combination of inspection, temperature control, and proper storage.
 
If you’ve just cracked open a walnut and found a little white worm instead of a nut, you’re probably wondering how to get rid of worms in walnuts without losing your whole harvest.
 
It’s a common problem, especially if you grow your own walnuts or buy them in bulk.
 
The good news is that getting rid of worms in walnuts is totally doable, and you don’t need harsh chemicals to do it.
 
In this post, we’ll walk through why worms show up in walnuts, how to get rid of them, and how to keep them from coming back.
 
Let’s dive in.
 

Why Worms Get Into Walnuts

Worms in walnuts don’t just appear out of nowhere.
 
Understanding how they get there is the first step in getting rid of worms in walnuts for good.
 

1. The Walnut Husk Fly

The main culprit behind worms in walnuts is the walnut husk fly.
 
This fly lays its eggs on the walnut husk, and when the eggs hatch, the larvae burrow inside the shell to feed on the nut.
 
That’s why getting rid of worms in walnuts often starts with dealing with the husk fly before it ever reaches the nut.
 

2. Poor Storage Conditions

Even after harvest, worms can show up if you store walnuts in warm, humid places.
 
Storage pests like the Indian meal moth love warm conditions and can lay eggs on your walnuts.
 
If you’re trying to get rid of worms in walnuts that appeared after storage, this is usually the reason.
 

3. Late Harvesting

If you leave walnuts on the tree too long, the husks soften and become a magnet for insects.
 
The longer they sit, the easier it is for worms to get inside.
 
So when it comes to getting rid of worms in walnuts, timing your harvest matters more than you might think.
 

How to Get Rid of Worms in Walnuts

Once you’ve spotted worms, you need a plan.
 
Here are the most effective ways to get rid of worms in walnuts.
 

1. Sort and Discard Immediately

Start by spreading your walnuts out on a clean surface.
 
Look for small holes in the shell, which are a telltale sign that a worm got inside.
 
Discard any walnuts with holes or visible worms right away.
 
This simple step stops the infestation from spreading to the rest of your batch.
 

2. Use the Hot Water Method

One of the best ways to get rid of worms in walnuts is to soak them in hot water.
 
Heat water to about 120°F (49°C) and submerge your walnuts for a few minutes.
 
This kills any larvae hiding inside without damaging the nut itself.
 
After soaking, spread the walnuts out to dry completely before storing them.
 

3. Freeze Your Walnuts

Freezing is another reliable way to get rid of worms in walnuts.
 
Pop your walnuts in the freezer for at least 24 to 48 hours.
 
The cold temperature kills any eggs or larvae that might still be lurking.
 
After freezing, transfer them to an airtight container for storage.
 

4. Heat Treat in the Oven

If you prefer a quicker method, you can heat-treat walnuts in the oven.
 
Spread them on a baking sheet and bake at 150°F (65°C) for about 15 to 20 minutes.
 
This dries them out and kills any worms or eggs.
 
Just be careful not to overdo it, or you’ll end up with roasted walnuts instead of raw ones.
 

5. Clean Up the Harvest Area

Getting rid of worms in walnuts isn’t just about the nuts themselves.
 
Clean up any fallen husks, leaves, or nuts around your trees.
 
These are prime breeding grounds for the walnut husk fly, so removing them breaks the cycle.
 

Preventing Worms in Walnuts

Getting rid of worms in walnuts is easier when you prevent them from showing up in the first place.
 
Here’s how to keep your walnuts worm-free from the start.
 

1. Harvest on Time

Don’t wait too long to harvest your walnuts.
 
Pick them as soon as the husks start to split, before they become soft and inviting to pests.
 
Timely harvesting is one of the simplest ways to avoid needing to get rid of worms in walnuts.
 

2. Dry Walnuts Thoroughly

Moisture is your enemy when it comes to storing walnuts.
 
After harvesting, spread them out in a dry, well-ventilated area for a week or two.
 
Proper drying prevents mold and makes it harder for worms to survive.
 

3. Store in Airtight Containers

Once your walnuts are dry, store them in airtight containers.
 
Keep them in a cool, dark place like a pantry or fridge.
 
This keeps pests out and helps you avoid having to get rid of worms in walnuts later on.
 

4. Inspect Regularly

Check your stored walnuts every few weeks.
 
If you spot any signs of worms or webbing, remove the affected nuts immediately.
 
Catching the problem early makes getting rid of worms in walnuts much easier.
 

So, How Do You Get Rid of Worms in Walnuts?

You get rid of worms in walnuts by sorting, heating, freezing, and storing them properly.
 
The key is to act quickly and create conditions that worms can’t survive.
 
Whether you’re dealing with a fresh harvest or a pantry problem, getting rid of worms in walnuts is totally within reach.
 
Hope this post has helped you understand how to get rid of worms in walnuts and how to keep them from coming back.