Be Patient: Don't get overaggressive in caring for freeze-damaged trees

摘要

Severe freezes can damage leaves, twigs and even kill entire citrus trees. Freeze damage to citrus occurs when water inside the fruit, leaves and twigs becomes ice and ruptures the cell membranes. During the fall and winter, extended periods of cool weather prior to a freeze can allow citrus trees to harden and acclimate, and therefore withstand more cold weather than non-acclimated trees. On the other hand, freeze damage is more severe when it follows a warm spell. Because new growth is more susceptible to freeze damage, do not do anything that stimulates new growth during the winter.