The invention discloses a practical ecological agricultural insecticide. The agricultural insecticide is prepared from the following raw materials: calcined
lime, cigarette ends, cigarette ash, micro-
sulfur powder glue suspension, and the like. The composition of the agricultural insecticide has a higher synergistic effect, can be used for enlarging the prophylaxis and treatment spectrum, is conductive to overcoming and delaying the
insecticide resistance of injurious insects, and is better compatible with the environment. Moreover, the practical ecological agricultural insecticide has the advantages of certain soil reclamation function to the
saline-
alkali soil and certain
fertilizer efficiency. The practical ecological agricultural insecticide has obvious effects on killing and preventing more than twenty types of vegetable injurious insects, such as cabbage butterflies,
asparagus caterpillars, henosepilachna vigintioctopunctata, aulacophora femoralis, oriental tobacco budworm, eggplant borer, liriomyza huidobrenisis,
liriomyza sativae, cotton
aphid, prime aphids, thrips, wheat spiders, green peach
aphid, nezara viridula, beet yellow mites, whiteflies, wild slugs, spider mites, and the like. The practical ecological agricultural insecticide has the advantages of low cost, simplicity and convenience in process, natural composition, and no harm in the preparation process, thereby being suitable for the domestic preparation of farmers.