Thank you both!
I found one of my marigolds were heavily infected. I've been trying to be more careful. Spraying when I see them on my cherry, baby plants, and so on. One rose is recovering well. The other is in the air.
I'll keep on at it! So far looking it up a lot of the bonide stuff is import so it's a bit pricey to get. Japan does have stuff that works as medicine from mites and aphids, but I'm trying to avoid using it.
