Winter desiccation damage occurs when the amount of water lost through foliage exceeds the plant’s ability to take up water through the roots. Exposure to winter wind and sun increases the rate of water lost through transpiration, robbing the plant of essential leaf moisture needed for survival. LeafShield provides safe and effective protection against desiccation injury. It forms a protective barrier that seals leaf stomata to reduce moisture loss. LeafShield dries to a thin, waxy layer that protects foliage without discoloration. It is safe to use on all plant types, including blue spruce and other sensitive varieties.