Hibiscus: Bud Turns Yellow and Drops , 1 by Snug_As_Bug_Rug

Snug_As_Bug_Rug wrote:
My long-awaited first large bud hits the dust. :o( -- After this happened I doused all three of my hibiscus plants with Neem Oil. I did notice something that was unusual to me before the bud fell. There was a teardrop-shaped droplet of sticky liquid on the stem below the bud. You can see it in the photo below. Is this something negative or natural? I know that mites, etc. can leave sticky excrement on the leaves, but there is nothing sticky anywhere except for this isolate droplet. The bud is laying on a leaf next to the stem from where it fell in the photo below.

Thanks, Snug