Sticky tiny clear beads under phal leaves

[greenpassion]

Hi all. I have yet to experience trouble with bugs, that is possibly until now. Yesterday I noticed that under a leaf of one of my phals, the edge has an edging of clear sticky syrupy stuff. The 'drops' are tiny, and I've heard of "happy sap" on orchids, which I have noted myself, but this is odd to me. Is this thrips?? I have applied a diluted solution of Sucra Shield to the leaf, but would like a more educated plan of action here....or am I worrying for nothing? This phal is in a bark mix, and aside from this issue, it is very healthy. I have 22 orchids, 18 are phals, and all are pest free...or are they??