Garden Pests and Diseases: What problem is affecting my Mexican Bush Sage & Roses?, 1 by capousse

capousse wrote:
Zily Zily thanks for your additional email. I am not familiar with dmail on this site. I did go to a local nursery and the guy thought it was powdery mildew on the sage, but I don\'t think so as, whatever it is, is killing the plant. I did also go to East Bay Nursery and they thought it was either thrips or mites.

So I have cut the one in the ground way back, removing all apparent affected branches/leaves (see photos). I am going to also dowse both sides of leaves and branches with neem oil. Hopefully it can be saved. I went ahead and threw out the one that was in the pot and too far gone.

As to the roses, I am cutting off affected branches/leaves and treating it with Monterey Fruit Tress Spray Plus (active ingredient: Pyrethrins and neem oil) and then will also fertilize it and see what happens.

I so appreciate your help and perspective. If you and/or Vestia have any additional thoughts. Please let me know. Many thanks!