this post was submitted on 30 Apr 2025
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Balcony Gardening

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My balcony renaturation program is hitting like a truck. Going outside there is like visiting a conservation camp, and the sheer diversity of different insects and stuff is just amazing.

The only "problem" is, that my fellow ants think the same, and also started inhabiting said oasis.

They are everywhere.
I highly suspect that there might be a hive somewhere, because they are forming literal highways.

Right now, they basically just exist and aren't getting much in my way.

Some of them already found a way to get inside my apartment, and those few sadly needed to die (I feed my carnivorous plant with them).
It would be a horror if they find the pet bowl with food in there, or the trash can.

But outside? I don't care much, as long as they don't attack or harm me or my crops in any way.

Others would already have poisoned all of them, because it really looks like an infestation. My neighbours for example already did...

But realising that literally everywhere in nature it looks like this made me think that this is healthy and normal.

So, my question is:

  • Can there be a TOO much? When is the point reached? When should I intervene, and how? I don't wanna kill all of them, just control the population if it really is needed.
  • How about aphids? From what I know, they farm them like cattle to get the sap, and also protect them against predators like ladybugs. One of my reasons I chose to create this ecosystem is the natural regulation of pests, including aphids. Do I have to worry about that? How is it balanced in nature?
  • What do they feed on? I saw them attacking an earth worm today. Do I have to worry about them killing beneficial organisms?
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[–] nettle@mander.xyz 1 points 1 day ago* (last edited 1 day ago)

In my experience the best defence against ants is ants, they are very territorial.

I have had a colony of ants in a little box just inside my window for about 10 years now. They come in and out through a little crack in the window frame. The ants always stay near the window. I can even leave my food out and they won't touch it (though any food placed on the windowsill would quickly be demolished). They seem to be only there for shelter. I respect their home and they respect mine.

However in another room that doesn't have a resident colony I have problems with these pesky little ants that steal any food left out. They are so small they can even go under some lids. Their nest is outside yet they are so much more of a pain.

For you i would say there is no "nipping the colony off at the bud", the ants are already there and properly settled, they probabably would have allready found the food if they were intrested in it, but if they start being a problem and taking food then you can get rid of them.

Otherwise just keep your house boundaries (such as with diatomaceous earth or carnivorous plants or in my case nothing at all), and they will be loyal guards of your porch, defending off annoying ants and many plant pests while improving soil. (Some ants also have symbiotic relationships with certain plants such as Pseudomyrmex ferruginea with Vachellia cornigera. the plants provide food and shelter and the ants defend the plant with their life).

Idk, I love ants. They are an important part of the ecosystem, and we couldn't live without them. A loyal colony is good defence against other pests. And it's nice entertainment watching them form highways carrying food and eggs too and fro. But if they become a nuisance in the house then you do probably need to get rid of them sadly.

[–] anamethatisnt@sopuli.xyz 19 points 2 days ago (1 children)

It would be a horror if they find the pet bowl with food in there, or the trash can.

If you don't remove them from your balcony that horror will become reality, sooner or later.
I don't mind having ants in my garden, but when it's next to the house I do remove them. It's way easier to nip it in the bud then having house guests.

[–] Guenther_Amanita@slrpnk.net 4 points 2 days ago (5 children)

Any tips on how to get rid of them?

[–] TammyTobacco@sh.itjust.works 2 points 1 day ago

Along with diatomaceous earth, consider buying nematodes. They are tiny living creatures, and one of the varieties eats ants. There are multiple varieties, so make sure you get the right one!

[–] DrSleepless@lemmy.world 6 points 2 days ago (1 children)

Food grade Diatomaceous earth. Won’t harm you or your pets but will kill the ants.

[–] RebekahWSD@lemmy.world 2 points 2 days ago

I agree with this. It's what we've used to keep a sugar ant infestation from overwhelming us. We had to step up to a professional spray, but inside the diatomaceous earth was a lifesaver for years before it just got too bad outside. And food grade is easy enough to find and safe in the kitchen (where the sugar ants liked to be here)

[–] perestroika@slrpnk.net 6 points 2 days ago* (last edited 2 days ago)

Typical ant control involves leaving sterilizing bait granules on (or near) "roadways". Worker ants carry them into the hive and feed them to the queens. The trick is that they aren't poisonous, they are sterilizing. The queens cannot produce more workers and the colony gradually disappears.

Not sure about effects on other insects. I think the key would be putting them where ants travel, because that's where other insects don't.

[–] anamethatisnt@sopuli.xyz 5 points 2 days ago (1 children)

There are bait boxes that you can put in the ant trails/highways. I think they're called Ameisen köderdose in german. Much less cleanup compared to granulates/powder that you pour out.

[–] Guenther_Amanita@slrpnk.net 7 points 2 days ago (1 children)

Thanks mein Freund, then I'll think about buying an Ameisenblaukorngiftköderfallendose if needed 👍

[–] anamethatisnt@sopuli.xyz 4 points 2 days ago

rofl, and people whine about swedes combining words. :D

[–] ChaosCoati@midwest.social 3 points 2 days ago (1 children)

We sprinkle a line of food-grade diatomaceous earth outside right next to each of our doors, so the outside ants would have to cross it to get inside.

We also got a plate that’s larger than our pet’s food bowl. We put diatomaceous earth on the plate and then put the pet bowl on top of that.

Finally we put out a borax-sugar solution. I drilled some ant-sized holes in the side of several plastic containers that have tight lids (we have an indoor bunny and I didn’t want her getting into the borax even though it shouldn’t be enough to affect her). I soak cotton balls in the borax solution, put them in the plastic containers, and place the containers along any ant trails I notice.

Borax solution: 1 cup warm water, 5 Tbsp + 1 tsp white/caster sugar, 1 Tbsp borax. Mix until dissolved.

[–] Guenther_Amanita@slrpnk.net 4 points 2 days ago (1 children)

Do you know where I can find Borax locally for reasonable prices?

[–] i_stole_ur_taco@lemmy.ca 4 points 2 days ago (1 children)

I find it in a box at the grocery store in the laundry aisle. In Canada the product is even named Borax, but if you’re somewhere else you might have to check the ingredients on products if they’re covering it with another name (e.g. how “Mrs. Dash” is just MSG).

[–] ChaosCoati@midwest.social 3 points 1 day ago

Same as i_stole_ur_taco. The brand I buy is “20 Mule Team” and it’s advertised as a detergent booster. The only ingredient is sodium tetraborate.