... Matrine 1.5% AS 2 Matrine bio pesticide, no toxicity, no residue 3 For green and organic agriculture Matrine(Extracted ... of breathlessness.Advantage Features:1. High efficiency, Broad spectrum, Low toxicity, Non residue and Green protection to environment.2. Significant effectiveness ... source (the Sophora,Flavescens,Ait), so it has very low toxicity, so it nearly no harm to beneficial insects, and ...