The present invention relates to a composite insect resist agent for plant, which is formulated by natural substances for effectively resisting injurious insects of plants. The present invention employs ethanol solution as the matrix, and adds the additives, such as tobacco, pepper, garlic, sodium hydrocarbonate and carbon, into the ethanol solution in proportions and, immerses a period of time to fully mix the additives placed into the ethanol solution to form the natural composite insect resist liquid. After being diluted, the insect resist liquid may be sprayed on the branches and leaves of fruit trees, vegetables or flowers, such that all the injurious insects directly subjected to the spray or infected by creeping over the branches and leaves may have destroyed their body cuticles with surface affinity or sealed their respiratory system. Moreover, the insect resist liquid may also be functioned as a leaf protector and a fertilizer with an excellent usage effect.本發明係有關於一種複合型植物防蟲液,特別是指一種利用天然物質調配製成,能有效防治植物的害蟲。其主要係以乙醇溶液為基體,然後將菸草、辣椒、蒜頭、碳酸氫鈉及碳等添加物依比例放入乙醇水溶液內,並浸泡一段時間,使置入乙醇水內的添加物能與乙醇水充分混合,而形成天然的複合型防蟲液,再將防蟲液稀釋後噴灑於果樹、蔬菜或花卉的枝葉面上,使受直接噴灑或爬過枝葉而沾染到防蟲液的各種害蟲,利用表面親和而破壞蟲體角質層,或能封閉害蟲的呼吸系統,同時能作為葉面保護劑及肥料,使用效果極佳。10‧‧‧菸草11‧‧‧辣椒12‧‧‧蒜頭13‧‧‧碳酸氫鈉14‧‧‧碳15‧‧‧輔助物2‧‧‧複合型植物防蟲液20‧‧‧乙醇水溶液201‧‧‧碎米
