How to Get Rid of Ants on Your Cannabis Plants, Naturally

To get rid of ants on your cannabis plants, start with natural fixes: sprinkle cinnamon or coffee grounds where they gather, spray a diluted neem oil mix, dust diatomaceous earth around the base, or set out a homemade baking soda and sugar bait. Ants don't eat weed, but they farm aphids and whiteflies, which do real damage, so taking out the ants usually means taking care of those pests too.

Are ants bad for cannabis plants?

On their own, ants aren't attracted to cannabis and don't feed on it. The trouble is how they behave. Sometimes ants build nests around a plant's roots, which can damage them and set back the plant's growth.

On top of that, ants act as "farmers" for aphids and whiteflies, protecting them so they can feed on the sugary honeydew those insects produce. That can turn into an aphid or whitefly infestation that seriously hurts your plants.

How to spot an ant infestation on your cannabis plants

To figure out if you've got an ant problem, watch for these signs:

1. Lots of ants on the plants.
2. Anthills in the soil around your plants.
3. A heavy concentration of aphids, whiteflies or other harmful bugs.
4. Pale, wilting plants, though this one can have plenty of other causes.

If you notice any of these signs, it's time to act.

How to get rid of ants on cannabis plants naturally

Here are a few natural ways to clear ants off your cannabis plants and keep them safe:

1. Ground cinnamon or coffee grounds:

Ants aren't fans of cinnamon or ground coffee. Sprinkle a tablespoon of either wherever you see ants bunching up. The strong smell usually drives them off. If that doesn't do it, mix the cinnamon or coffee with water and pour it on the soil around your plants. The mix soaks into the ground and scatters the ants.

2. Neem oil:

Neem oil is a natural pesticide that can help you keep ants in check. Mix a teaspoon of neem oil and 5 drops of surfactant (a wetting agent, like a mild liquid soap) into a liter (about a quart) of water. Spray it on your plants, making sure to coat the tops and undersides of the leaves. Neem works against ants and is generally gentle on beneficial insects and on your plants.

3. Diatomaceous earth:

Diatomaceous earth is a natural powder that works as an effective insecticide. It's abrasive and dries out insects by soaking up their body fluids. Dust it around your plants to keep ants away. Handle it with care, though: it can irritate your skin, eyes and airways.

4. Beneficial insects:

Some insects, like wasps and spiders, prey on ants. Bringing these beneficial bugs into your garden can make it harder for ants to settle in. Just keep in mind that ant colonies are huge, and these predators may not be enough to wipe them out completely.

How to keep ants from damaging your cannabis plants in future grows

To head off ant problems next time around:

• Keep your plants free of aphids, whiteflies and other insects that draw ants in.
• If you notice the ant population growing, use cinnamon, coffee grounds or neem oil as a preventive measure.
• Build a garden that welcomes beneficial insects to balance the ecosystem and make it less inviting to ants.

Follow these tips and your cannabis plants will stay clear of ants and other nasty bugs.

How do you get rid of ants on plants with vinegar?

Vinegar is an effective home remedy for ants on plants. Its strong smell and taste tend to repel and disorient them, which keeps them away from your plants. Here's a step-by-step guide:

What you'll need:

1. White or apple cider vinegar
2. Water
3. Spray bottle
4. Funnel (optional)

Steps to get rid of ants with vinegar:

1. Make the mix:
   • Mix equal parts vinegar and water in a spray bottle. For example, use one cup of vinegar and one cup of water, or just fill the bottle halfway with vinegar and top it off with water.
2. Shake it:
   • Shake the bottle well so the vinegar and water blend properly.
3. Apply it:
   • Spray the vinegar mix on and around the spots where you see ants, or around the affected plants. Pay special attention to the trails the ants follow.
   • You can also spray the ants directly if you spot them on the leaves or on the ground near your plants.
4. Repeat:
   • Reapply as needed, especially after it rains, since rainwater dilutes the mix. It's also a good idea to repeat it regularly as prevention.
5. Heads up:
   • Avoid spraying vinegar straight onto the leaves, since it can harm some plants, especially if you overdo it.
   • Don't go overboard with the mix, because it can throw off the soil's pH. Diluted, it's mostly safe.

This fix works best as prevention or for targeting specific trouble spots. If you're dealing with a serious infestation, you may need to step up to the other options covered above, like diatomaceous earth, neem oil or beneficial insects, depending on how bad it is and whether the ants are protecting other harmful pests.

How do you make homemade ant poison?

You can make homemade ant poison with common, fairly safe ingredients you probably already have at home. Here's a basic recipe:

What you'll need:

1. Baking soda (sodium bicarbonate)
2. Powdered sugar
3. Water
4. Bottle caps or small containers

Steps to make homemade ant poison:

1. Mix the bait:
   • In a small container, like a bottle cap, mix equal parts baking soda and powdered sugar. For example, use a teaspoon of each.
2. Add water:
   • Add a few drops of water to the baking soda and sugar. How much depends on how runny you want it: less water for a thick paste, a bit more for a looser mix.
3. Stir well:
   • Stir until everything is fully combined into a paste.
4. Set out the bait:
   • Put small amounts of the mix in bottle caps or small containers and place them where you've seen ants or along their trails. The sugar draws the ants in, and when they eat the baking soda along with it, it upsets their digestion and eventually kills them.
5. Refill:
   • Check regularly whether the bait has dried out or been eaten, and top it up as needed.
6. Safety:
   • Keep the bait out of reach of pets and kids, since baking soda can be harmful if swallowed in large amounts.

This bait works well for specific trouble spots, but if you've got a serious infestation or the problem keeps coming back, you may need other measures or a pest control pro. And be careful not to harm other beneficial critters living in your garden.