Agricultural composition containing synergist

The invention discloses an agricultural composition containing a synergist, and belongs to the technical field of plant protection. The invention provides an application of aprotinin as a synergist in preparation of an insecticide, and when aprotinin is compounded with azadirachtin or sophocarpidine for use, the aprotinin and azadirachtin or sophocarpidine have a synergistic effect. The aprotinin can effectively improve the toxicity effect of the insecticide on pests by inhibiting the activity of midgut protease, and is beneficial to effectively reducing the drug use frequency in the field, reducing the cost and improving the economic benefits of agricultural products. 本发明公开了一种含增效剂的农用组合物，属于植物保护技术领域。本发明提供了抑肽酶作为增效剂在制备杀虫剂中的应用，抑肽酶与印楝素或苦参碱进行复配使用时，协同增效。抑肽酶可以通过抑制中肠蛋白酶的活性，有效提高杀虫剂对害虫的毒力效果，利于田间有效减少用药次数、降低成本并提高农产品经济效益。