Rose mosaic is a disease that commonly attacks roses and is caused by a virus. are the world’s most planted flowers. Roses will suffer from black spot from time to time, as well as from thrips, aphids, mealy bugs, and other rose-eating bests like the chafer beetle and the red spider mite.Control these insects by either using predatory insects, such as lady bugs, or you can use natural pesticides and insecticides. Most roses require a lot of care to grow and bloom properly. An application once or twice a week will help keep your Rose bush healthy and happy. Rose diseases are best prevented by providing a favorable cultural environment for the roses. Cultivation requirements of individual rose species and cultivars, when observed, often assist in the prevention of pests, diseases and disorders. In order to avoid these troubles, each owner must be able to properly protect their garden roses. Aphids. They cause stems to wilt and can also cause problems by transmitting diseases from one plant to another. Roses can develop diseases that cause damage to the flowers and foliage. Rose rust, another fungal disease, causes red rust-like spots on the foliage. Diseases of roses adversely affect the appearance of the plant. Symptoms: tiny green 1mm long insects gathering in numbers on new foliage and buds. Besides its decorative purposes, the roses are also grown for its petals which are used in the food and cosmetic industry. Many of the problems affecting roses are seasonal and climatic. Applying fungicide to your Roses will also help prevent black spot from occurring. Some varieties of roses are naturally more resistant or immune than others to certain pests and diseases. To prevent this disease, take a look at our Rose diseases photos and make sure that you know what it looks like. Roses may survive without a basic pest control program, but they may not be very attractive. A pest control program starts with proper site selection, good soil preparation, good drainage, proper spacing, cultivar selection, and plant maintenance. Rose treatments, most common diseases and pests of this flower The roses (Rosa spp.) Roses (Rosa species) are susceptible to a number of pests, diseases and disorders. Roses are susceptible to a number of disease and insect pests. Avoid high Nitrogen fertilizers. One of the most common causes of failure with roses is poor disease control. They deplete, and in severe cases can lead to death. Symptoms, diagnosis and treatment for all your rose problems . Natural Remedies for Rose Diseases: Mildew, Rust, Black Spot, Canker. In the article we will describe in detail what types of lesions are and how to treat roses from diseases. The three most serious diseases of roses in South Carolina are black spot, powdery mildew, and stem canker and dieback. Shade and moderate temperatures favor most rose diseases, so locate plants in sunny areas as much as possible and plant the bushes at least four feet apart to provide good air circulation. Diagnosis: aphids are sap-suckers that love the new growth and tender young buds of roses. Blackspot, Botrytis blight, and powdery mildew are common rose diseases that are caused by fungus. For more information on roses see HGIC 1172, Growing Roses.