Answer: Both Orthene (an insecticide) and Bravo (a fungicide) are registered for use on roses so the damage may have occurred because of over-application or application on a hot sunny day. Although the damage is done, neither should be fatal to your rose bushes. Your plants will drop the damaged leaves and should develop healthy new leaves as the season progresses. To avoid repeating the problem, be sure to read and follow label directions on both products before spraying your roses again.
Best wishes with your garden.
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