There is evidence of sunburn on blossoms that have become accustomed to cool, overcast skies. When the sun came out, the temperature went from cool to hot. Check with your local plant nursery to see what they have available. Some products also contain insecticide. Systemic insecticides can provide good control.
Roses are heavy feeders and require fertilization on a regular basis to maintain good vigor.
Don't fertilize after the first of September to allow roses to harden off for the winter. They are future business leaders, parents and elected officials. There is a program that teaches kids about the unique power and responsibility they have in the marketplace. As a result, they will be better employees and customers and will be less likely to be targets of fraud. Formed in 1981, NCCE reaches out to educators in schools, communities and the work place with programs such LifeSmarts to prepare teenagers for the marketplace and its many pitfalls.