E eOrchids Well-Known Member Joined Jun 13, 2006 Messages 1,753 Reaction score 2 Location somewhere in NJ Apr 15, 2007 #1 Hey All, I'm just curious. What causes cell collapse on leaves to form? Thanks!
smartie2000 Well-Known Member Joined Dec 8, 2006 Messages 4,212 Reaction score 0 Location Edmonton, AB, Canada Apr 15, 2007 #2 A dip in humidity can help cause it sometimes.