Do Slugs Eat Onions?

Do slugs like onions? They aren’t normally a pest that is associated with onions but is this because they don’t eat them or just because onion flies are normally the ones to worry about? let’s find out.

Do Slugs Eat Onions
Do Slugs Eat Onions

So, Do slugs like onions?

yes, slugs will eat onions and can often be found on onion leaves. Bites on the leaves from slugs can cause wilting and even rot in the leaves so they can be a serious problem for onions.

One good way to protect young plants is to use a half pop bottle as a sort of mini greenhouse, this can soon get impractical though if you are growing a lot of onions.

Growing sacrificial plants near your onions is another way of stopping them from harming your onions. What you are essentially doing is giving them a plant that they would prefer to eat so they stay off your onions.

I accidentally did this with my lettuce last year when I found that they loved the iceberg lettuce I was growing. Instead of trying everything to keep them off it I just let them have it. They focused on the iceberg lettuce and left all of my other lettuce completely alone.

If you prefer to try and fight the slugs and reduce their number then I have some top tips below.

How to deal with slugs

Here are a few different ways you can deal with slugs, some organic, some not.

Slugs Pellets

The classic way to kill off slugs and it does work, there are however drawbacks.

Firstly the little blue pellets aren’t safe to have around if you have pets or young children who might digest them accidentally.

Next, there is the fact that they may be harmful to slugs’ natural predators like hedgehogs who eat slugs killed by pellets, therefore, ingesting the poison themselves.

And then there is the mess they leave, lots of dead slugs on the surface of your garden with nasty trails everywhere.

Nematodes

This is a natural and organic way to kill slugs. There are all kinds of nematodes, which are tiny little creatures that live in your soil, some of these nematodes kill slugs.

This is completely natural and is what happens in your soil all the time. By adding nematodes you are just increasing the number of the slug killing type.

One of the advantages of this method aside from the fact you don’t have to use poison is that part of the way the nematodes kill the slugs makes them burrow into the ground before dying, so no nasty dead slugs lying around!

Organic Slug Killer
Slug Nematodes 12million (Treats 40sq.m)
£13.45

Control slugs NATURALLY by applying Nemaslug Slug Killer, which contains natural nematodes, that are effective at controlling slugs, but unlike chemical controls, are safe for children, pets, birds and wildlife.


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06/25/2022 06:35 pm GMT

Slug Traps

You can set up traps to capture slugs and then dispose of them how you wish. There are lots of different ways to do this but one of the more popular ones is a beer trap.

With a beer trap, you set a container, usually a plastic tub of some kind, level with the surface of the soil. You want it level with the surface so slugs can easily get into it but you want the bottom to be deep, so they can’t get out.

You then fill the bottom with some beer, which slugs adore, and leave it. The slugs will make their way into the trap and either drown or be waiting there come morning for you to get rid of them.

One downside to this apart from all the slug carcases you will be getting rid of is that the beer is so potent that it can apparently attract slugs up to 200 meters away and therefore bring even more slugs into your garden than were there before!

Torch & Bucket

The manual method, and as is often the case with the manual method, this is very effective but time-consuming. Wait until dark and go out into the garden with a torch, some gloves and a bucket and start collecting slugs.

This is best done on a damp night after heavy rain as then the slugs will be everywhere, happy hunting!

Daniel

Daniel

Hey, I'm Daniel. Having worked as a professional gardener for years as well as keeping a private allotment I decided to create this website to help spread my knowledge. I love gardening and hope to show you just how rewarding it can be!

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