Neem oil is an common insecticide, fungicide, miticide which well known in organic farming. It can kill witeflies, aphids, scales, red mites, leafminers, control botrytis, anthracnose, powdery mildew, rust, leaf spot, scab, etc.. you can buy it from 黃三興(元朗Yuen Long), 陳萬合(上環SheungWan) |