Fogging Calcium for Poinsettia Bract Edge Burn
Poinsettia Bract Edge Burn is a common occurrence in this Christmas crop. Brown necrotic lesions occur on the bract margin. The primary cause for this is low levels of calcium in the bract. Some poinsettia varieties have difficulty translocating calcium to the bract margin as the bract expands. Once necrosis begins, botrytis often follows, often leading more plant damage.
