I checked for bugs and didn’t see any, but would it hurt to give the plants a light spritz of Ortho bug spray? I have some because I use it on my roses.
Tap water is usually high pH to prevent corrosion. You can add a couple drops lemon juice per quart to lower that. I only use neem and spinosad on weed, can’t help you with ortho but you don’t smoke roses.
Oh, I didn’t want to use it; I was just freaking out and it was the only thing I had. I’m usually all-organic except for roses, but I thought spraying them would be better than letting them die if it truly was an emergency.
Thank you. I just ordered some Cal-Mag and a moisture meter!
Last year my roses had black spot, so this year, I’ve been spraying them with fungicide weekly. So far they seem to be fine. They haven’t ever gotten light spots, though.
Black spot gets in the soil from dropping leaves, i do roses too. Its aphid season.
They've been in the greenhouse and we've been getting a lot of rain, so there's moisture inside that's been dripping on them. I didn't even think about that! I really hope that's all it is. They look the same today, with no further damage.
Black spot is the devil. I learned last year that you just can't do roses without chemical pesticides and fungicides (or at least I can't).
