I have a juniper bonsai tree (I believe that is what it is) and over the past few days several branches have begun to turn purple (maybe on the way to brown) and upon further inspection, there appear to be webs on them! Attached is a photo.

Can anyone help identify what this is and how I can help my bonsai heal? Please.

These are apider mites. A sign of dry grwoing conditions. Treat with a pesticite which explicitly mentions them (they are not insects so generic insecticide does not work)

Thank you. I picked up something called Natria Neem Oil (a Bayer Science product) that is designed to kill spider mites. Hope my little guy improves soon!

Spider mites on a juniper... I hope you don't have it indoors? If so, the Neem oil is not going to help in the long run.