You have transformed your balcony into a real corner of paradise, a haven of peace that reconnects you with the earth and nature. But like all gardeners, you have to fight against diseases and insects that invade and endanger it.
The simplest way would be to buy chemical insecticides sold in stores, but your ecological conscience prevents you from doing so. You’d prefer more natural, environmentally friendly solutions – after all, if you have a garden, it’s because you love nature – and more practical. The good news is that with a few simple ingredients and in just a few minutes, you can make your own insecticide to treat your balcony in a completely natural way.
Below are our 5 favorite methods for making your own natural insecticide. One precaution, however, before you start your decoctions: to avoid burning your plants in case of strong sunshine, spray them in the morning or evening. Moreover, most of these preparations are for immediate use, or almost; the goal here is not to build up stocks, but to be able to quickly prepare what you need in a jiffy.
1-GARLIC: AGAINST APHIDS AND MUSHROOMS (IF USED AS SOON AS IT IS PREPARED)
While some humans love garlic and others can’t smell it, insects don’t like it at all, and garlic acts as a powerful repellent. The simplest preparation is to pour boiling water over 4 minced cloves, cover and let stand for one hour. This preparation is to be used immediately, at the beginning of spring, for a preventive effect. For a punctual use on infested plants, you can take two whole pods (not only the heads) and pass them to the blender with 250 ml of water. After letting the mixture stand in the fridge overnight, add half a cup of vegetable oil, a teaspoon of liquid soap (for washing up for example) and water.
2-CHILLI PEPPER: AGAINST APHIDS AND INSECTS
It is not only on us that chilli pepper has an effect! Like garlic, a chilli solution can be used as a repellent for insects, especially aphids. Mix either a tablespoon of chilli powder or half of a freshly blended chilli pepper with 250 ml of water and add a few drops of liquid soap. After that, all you have to do is let your extra spicy food taste to your pest visitors. Be careful, however, when handling the chilli pepper: avoid spraying towards your eyes, nose or mouth. It remains powerful, even when diluted!
3-SOAP: AGAINST MOTHS, APHIDS, WHITE FLIES, RED SPIDERS…
The best advantage of this preparation is that it will take you less than a minute, watch in hand. Just mix 1 and a half teaspoons of liquid soap (black or Marseille) in 250 ml of water, shake well – and it’s ready! All you have to do now is spray your mixture on the infected leaves. Due to the high soap content, avoid treating your plants in direct sunlight; instead, do it in the morning or evening.
4-TOBACCO, AGAINST APHIDS AND RED SPIDERS
It is probably the least attractive recipe to make, but it is highly effective against aphids and mites – both as a prevention and as a spot treatment. Fill half of a plastic bottle with cigarette butts, top up with water, close it and leave it to infuse for a day (you can leave it longer – up to a week – if you want a more concentrated mixture, which you can use in several times by diluting it). Filter to keep only the liquid – you can add a spoonful of methylated spirits if you want, but this is not essential – and spray the underside of the leaves of your plants.
5-THE ALL-IN-ONE VAPORIZER, VERSUS… A LITTLE BIT OF EVERYTHING!
Following the good old method of mixing everything together, you can make a preparation that will serve you for almost anything. Mix a bulb of pureed garlic, a small chopped onion, a teaspoon of chilli powder with 250 ml of water. Leave to infuse for an hour, filter, and add a tablespoon of liquid soap… There you go, all you have to do is spray your all-in-one on both sides of the leaves of your plants. Additional advantage: in the fridge, this mixture can be kept for a week.
You should know that there are still other methods to make your own natural insecticide such as: with oil, tomato leaves, diatomaceous earth… Don’t hesitate to share your tips with us.