A recipe of Chinese herbal composite used in horticulture to kill pests. The practical applications of this recipe include pest killing, germ and virus eradication of vegetables, fruit trees, flowers and economical plants. This recipe is composed of Gleditisia Sinensis, Sophora flavescens, Aloe vera, Stemona tuberosa, Brucea javanica and Dioscorea collettis vice versa. We prepare it with modern principles and scientific methods to emulsion spray. Those so called modern and scientific are the emulsion processes, micronization, permeability and the multiply potency it possessed. Several laboratory and field test proved that this invention had definite effect on the past killing, germ eradiation and virus inhibition. This invention is belongs to non toxic Chinese herbal preparation. The spray does not harm or cause toxic effect as it touch human skin, eyes, nasal mucosa, lip, mouth and tongue. It does not accumulate in human body and pollute environment.