February 2nd, 2010
Here is a recipe I use for an all-purpose insecticide spray. It can also be used as a mild fungicide and has a strong odour. I have used it on aphides, mites, thrips and scale and it seems to repel slugs, snails and caterpillars. I don’t use it on plants where my ducks graze just in case, but I do use it on roses out in the front garden and in my vege patch if I need too. When mixing this brew up I never use my regular kitchen utensils or cooking pans instead I use an old pan I save just for this. I keep this pan in the shed. I try not to use any insecticides at all but if I need to I try this:
Combine 2 finely chopped onions, 6 cloves of freshly crushed garlic and 1 tablespoon of hot chilli powder (or 6 finely chopped red chillies), cover with 2 cm of water, stir well and allow to steep for 24 hours. Dissolve 1 cup of pure soap flakes in 5 L of warm water, then add the strained onion/garlic/chilli mixture and stir well. Use within 24 hours.