This ingredient present in all recipes is in reality an ultra-powerful insecticide

Instructions:

Mix the lukewarm water, rapeseed oil, and black soap together in a container.
Pour the mixture into a spray bottle.
Shake well before use to ensure the oil and water are fully combined.
Spray the mixture generously onto the entire plant, focusing on areas where pests are present, like the undersides of leaves.

It’s important to follow the recommended doses and never apply pure rapeseed oil directly to your plants, as this could burn the foliage. The black soap in this recipe acts as a natural surfactant, helping the oil spread evenly across the plant’s surface and increasing its insecticidal effectiveness.
Best Practices for Application

For the best results, apply the rapeseed oil insecticide in the early morning or late evening, when the sun’s rays are not as strong. Applying the mixture during peak sunlight hours could cause the plant to burn. You should also test the mixture on a small section of the plant before full application to ensure the plant tolerates it well. If the pest infestation is particularly severe, repeat the treatment a week after the initial application to ensure all pests and their eggs are eradicated.

While rapeseed oil is a versatile insecticide, it’s important not to use it on flowering fruit trees. The oil can interfere with the pollination process and potentially harm the flowers.
Additional Uses for Rapeseed Oil in the Garden

Beyond its insecticidal properties, rapeseed oil has other valuable uses in the garden. It can be used as a green fertilizer when incorporated into the soil at the end of winter, enriching the soil with nutrients and improving its structure. Additionally, rapeseed oil can act as a natural rust inhibitor for gardening tools. Coating your tools with a thin layer of pure rapeseed oil once a year will protect them from rust and prolong their lifespan.
A Natural, Safe Solution for Your Garden

Rapeseed oil is a powerful, natural solution for gardeners looking to protect their plants from pests without resorting to harmful chemicals. Its effectiveness against a range of common garden insects, combined with its eco-friendly and non-toxic properties, makes it an ideal choice for organic gardening. By making a simple homemade insecticide with rapeseed oil, you can safeguard your plants, protect the environment, and save money—all while using an ingredient you already have in your kitchen!