Hello to everyone.
I have been maintaining a large Phaleonopsis collection for some years now and have learned to deal with basic things. I have lately come across a new and worrying problem- about six or so of my flowering plants have developed circular blotches on the petals, followed by early dropping of that particular flower. I have never seen this before and am quite worried- One plant has got a rather severe outbreak of these circular blotches and new buds are dropping when half open. Can anyone help? Many thanks, Ramlah.