How to protect loquats from cold?

Shanghai is the northern edge area for loquat cultivation. In addition to selecting late-flowering cold-resistant varieties and applying hot winter fertilizer before flowering, cold protection work must be done after winter. Loquat branches generally have strong cold resistance. Among the three organs, buds, flowers and young fruits, young fruits are the least cold-resistant. Specific cold protection measures: first, wrap the flower spikes and young fruits with the lower leaves to protect them before winter; second, dry the roots for 7 to 10 days before flowering to delay the flowering period to avoid freezing; third, in case of frost, dry the flowers from night to early morning. Smoke and frost protection. In addition, after snowfall, snow should be knocked off trees to prevent broken branches, flowers and fruits from freezing.