| My collection if vary varied, but I do have a lot of Phals and Dendrobiums. I did have some problems with a couple of my Paphiopedilums, but not like you describe and believe that was from other causes. The Neem oil that I have used has always been mixed with water and soap and used as a dip in a bucket. Currently, I am trying other solutions so have no up-to-date data.
An orchid friend, recently mentioned that he uses different strengths of insecticide based on the different kinds of leaves - for thinner leaved plants he uses weaker solution. I do not know if this applies but maybe this could. |