Deficiency of Magnesium
There is probably a deficiency of Magnesium (mobile). Magnesium deficiency of monocots and cycads usually appears as broad yellow bands along the margins of the oldest leaves with a green midrib or rachis. Later leaf blades or leaflets become completely yellow with tip necrosis. Magnesium deficiency is quite common on some species of palms in Florida. Podocarpus nagi will have a yellow band across older leaves.
Plant is a monocot or noncotyledonous (includes palms, Pandanus, draceanas, yuccas, cycads and others
- Symptoms are most severe on the oldest leaves or throughout the entire plant
- Symptoms are most severe on oldest leaves
- No spotting, limited marginal necrosis possible. A broad yellow band surrounds the entire leaf or chlorotic band across leaf margin
- Symptoms are most severe on oldest leaves
Magnesium Deficiency in Ti Plant (Cordyline terminalis)
Magnesium Deficiency in Encephalartos (Encephalartos arenarius)
Magnesium Deficiency in Footstool Palm (Livistona rotundifolia)
Magnesium Deficiency in Canary Island Date Palm (Phoenix canariensis)