The invention belongs to the technical field of biological prevention and treatment of
postharvest diseases of fruits, and particularly relates to a method for preventing and treating
postharvest diseases of grapes, storing and preserving grapes through cyclic adenylic acid induced culture of sporidiobolus pteropteroides Y16. The method comprises the following steps: carrying out induced culture on sporidiobolus roseus Y16 by using an NYDB culture medium containing cAMP with the final concentration of 0.05-0.5 mM, centrifuging to obtain thalli, carrying out resuspension on sterile normal
saline to obtain a
yeast suspension,
punching grapes, injecting the
yeast suspension, standing, and injecting an equal-volume
aspergillus niger
spore suspension to effectively control the sour rot, or uniformly spraying the
yeast suspension subjected to induced culture on the surfaces of the grapes, and naturally airing, so as to realize the purposes of
disease control, storage and fresh-keeping after the grapes are picked. The method can significantly reduce the occurrence of sour rot after the grapes are picked, reduces the natural rotting rate after the grapes are picked, has no significant
adverse effect on main quality indexes of the picked grapes, is safe and environment-friendly, and has a wide market application prospect.