| I can't comment on the Dendrobium specifically, but my Phalaenopsis have had several similiar symptoms, in each case the leaves turned somewhat yellow, became pitted and/or veined as your picture #1 shows, then they fall off. all within the span of 10-15 days. Sometimes leaves do it in groups, sometimes singly. It doesn't always kill the plant, as sometimes leaves don't get the damage. I don't know if the Dendrobium and Phalaenopsis would be suffering the same virus/bacteria/insect/fungus/damage/etc being from different groups. |