| Materials | Methods of preparation | How to use | Target pests |
| Leaf extract
(Stoll, 2000: p. 168) 4 kg of Butterfly bush leaves ¼ liter of water 10-15 ml soap Mortar and pestle Pail |
Pound leaves. Add water. Squeeze out the sap. Strain. |
Dilute 1 liter of filtrate with 10-15 liters of water. Add soap. Stir well. Spray on infested plants thoroughly. Spray early in the morning or late in the afternoon. |
Black bean aphids Caterpillars in cabbage Plant hoppers |