Explain the stepwise preparation of Bio-pest repellent from the leaves of Azadirachta indica

Explanation

Botanical pest repellent and insecticide made with the dried leaves of Azadirachta indica Preparation of Bio-pest repellent
1. Pluck leaves from the neem tree and chop the leaves finely.
2. The chopped up leaves were put in a 50-litre container and fill to half with water, put the lid on and leave it for 3 days to brew.
3. Using another container, strain the mixture which has brewed for 3 days to remove the leaves, through fine mesh sieve. The filtrate can be sprayed on the plants to repel pests.
4. To make sure that the pest repellent sticks to the plants, add 100 ml of cooking oil and the same amount of soap water. (The role of the soap water is to break down the oil, and the role of the oil is to make it stick to the leaves).
5. The stewed leaves from the mixture can be used in the compost heap or around the base of the plants.