Can be used as fertilizer and also as pesticide. For any purpose, first you need to keep the powder in water for 15 days at least. Then, dilute in 4x water for use. For 1kg neem powder, use 10 litre water for process. Before use, you should dilute with at least 40 litre water. As a pesticide, you may spray the diluted water in infected areas. For fertilizing, you can give the diluted water in the base area of trees.