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Nature often offers us simpler and more effective solutions than chemicals – you just need to know where to look. If aphids are occupying your roses, spider mites are devastating your tomatoes and slugs are eating your lettuce leaves, we have a proven recipe for a natural insecticide that you can make at home for a few crowns. Starring? Ordinary, but very hot chili peppers.
Why chili peppers? Small, but dangerous to pests
Chili contains a substance called capsaicin, which irritates the nervous system of insects and slugs. Unlike chemical pesticides, which can damage soil, water and beneficial insects, the natural chili spray selectively repels only the pests you don’t want in the garden. Bees, ladybugs or lacewings, on the other hand, remain completely unaffected.
The effect of capsaicin is almost immediate – aphids disappear within a minute, slugs flee for their lives.
How does chili repel pests?
- acts as a neurotoxin for small insects
- disrupts their orientation and ability to find food
- leaves an invisible protective shield on the plants
- regular use creates an environment that pests “remember”
Recipe for homemade chili insecticide: A natural weapon without chemicals
What you will need:
- 4–5 hot chili peppers (the hotter, the better)
- 1 liter of water
- 1 head of garlic (optional – for a stronger effect)
- 1 tablespoon of natural liquid soap (or a little dishwashing liquid without fragrance)
Instructions:
- Chop the peppers finely, peel and crush the garlic.
- Place into a pot with 500 ml of water and boil for about 10–15 minutes.
- Let the mixture cool and strain through a fine sieve or gauze.
- Add the remaining water (500 ml) and the soap, mix thoroughly.
- Pour into a spray bottle and apply to the plant leaves – on both sides.
Recommendation: Use the spray ideally in the morning or evening, every 3–5 days or after rain.
What does the chili spray work against?
- Aphids – green and black vanish instantly
- Spider mites, whiteflies, caterpillars and larvae
- Slugs and snails – if you add garlic or onion, their retreat is truly dramatic
- Worms in the soil – you can also use it as a soil drench
What to watch out for?
- Before first use, test the spray on one leaf – some tomato or cucumber varieties can be sensitive.
- Never apply in full sun – leaves could become sunburned.
- Wear gloves when preparing and never touch your eyes.
Why choose a natural solution?
- ✅ 100% natural ingredients without chemical substances
- ✅ Inexpensive and effective protection you can make at home
- ✅ Doesn’t harm pollinators or the soil
- ✅ Fast effect – you’ll see results within minutes
Conclusion: A natural defense your garden will love
If you want a peaceful garden free of aphids, slugs and other intruders, you don’t have to reach for chemicals right away. This homemade chili insecticide is strong, natural and gentle – to nature and your wallet. And above all: it works immediately.
Try it today – and watch pests disappear from your garden faster than you can say “chili”!
