Edema and guttation only happening to my fully variegated tetraspermas. The normal mixed variegations are all healthy. Semi hydro setup in PON. How do I prevent or reduce this? Would any type of fertilizer help? I am currently trying to reduce the water levels but it doesn’t seem to be working.
by limlingyang
2 Comments
Following, never understood why edema happens when the plant isn’t being overwatered
Look into vpd and try and keep it around 0.5-1. Issues like this are typically the result of a crash in vpd, which means the air is struggling to remove transpiration from the plant. It is often the result of a drop in temp and a rise in humidity at night that causes the vpd to plummet. Often, all that is needed to correct it is more airflow, especially at night.