Bugs, Disease or Wilt?
A new one with only two 6-foot vines (Dorothy something) lavender - one vine looked funny two weeks ago and I thought it was broken because the top started to wilt. Then this week the leaves are black at the edge and some are almost all brown/black. I just went out to investigate and I see some white slightly powdery but barely-there stuff on the wood parts but not on leaves. I thought I saw some bug scramble away from that powder - sort of a triangle shape. What is this? I have five other clems just a foot away from this one. I did cut the icky vine off almost to the ground. Whaddayathink?