Longan fruit thinning agent

The invention belongs to the technical field of agricultural fruit thinning of fruit trees, and relates to a longan fruit thinning agent. The longan fruit thinning agent is prepared by uniformly mixing carbamide, diflubenzuron, amino acid and water and achieves the purpose of fruit thinning by accelerating the drop of weak fruits by being sprayed to a longan crown which needs fruit thinning and then manually vibrating the 2-level branches of a longan tree. The longan fruit thinning agent disclosed by the invention can be used for effectively thinning the weak fruits and retaining the fruits with high fruit setting power by scientifically blending a medicament according to a longan fruit load regulation mechanism, can meet the requirement for better fruit thinning, increase the fruit thinning efficiency under the precondition without influencing the late management work of longan and solve the problems of high labor intensity, low efficiency, high expenditure, poor effect and the like of the traditional manual fruit thinning, has the characteristics of easiness for operation, good effect, low cost and the like and plays an important directing role in high-efficiency orchard management.