That is why they named it "Rose Rx"! It has been extremely hot extremely early in the season this year. Blech.
Two years ago, I sprayed my plants with an all natural insecticide which damaged all of the leaves on my roses and peonies. Now I try anything new on the bottom few leaves of each type of plant, just in case. Been drowning Japanese beetles morning and night the past few days. I hate those things. They seem to like my Wildeve rose the best, so far. I am not certain if the systemic products I started using in my main rose bed this year have had an effect on the beetles. Time will tell.
My neems oil doesn't warn about using it in hot weather, either, but I read about it on a list last year. I did use a bit on the tips of my tiger lilies which were developing a fuzzy white fungus. They didn't mind.
Tomorrow will be cooler, a balmy 84'F, and I have lots to do outside. My viking constitution doesn't do well in the heat.
