These problems, diseases and pests are known to affect Rose plants:
In general, ensuring you purchase good quality rootstock from a reputable company will go a long way to ensuring your roses remain disease free, although ensuring that your roses have good air circulation, and are free of weeds and dead material will also help in reducing problems down the track.
Aphids like to hang around the buds and tender growth of roses.
Blackspot : Leaves get black spots then turn yellow and fall off. You may also see black scabby areas on new stems
Powdery Mildew : White powdery spot disease that affects a large variety of plants.
Aphids : Also known as greenfly and blackfly, Aphids are a common sap-sucking garden pest.
Bristly Rose Slug : Small green caterpillar-looking bugs that eat leaves.
Rose Slug : Small green caterpillar looking bugs that attack leaves. Are similar in appearance and habit to the bristly type, but only appear once a season
Rose Can Borer : The larvae of several species of fly or bee.