Photo at left depicts a Spathiphyllum that is severely deficient of Nitrogen. In the background are healthy plants. As the deficiency progresses, newly emerging leaflets appear necrotic and withered on all but basal portions of the leaflets. This deficiency can be fatal to the palm. Photo at left depicts a Rhapis excelsa exhibiting symptoms of Mn deficiency.
Older leaves remain green.
In severely Fe-deficient palms, new leaflets may have necrotic tips, growth will be stunted and the meristem may eventually die. Ensure good aeration for maximum Iron uptake by the plant. Leaflets of newly emerging leaves vecome necrotic with only the petiole base remaining alive. This deficiency is very common in Spathiphyllum spp .