Powdery mildew is common plant disease that can quickly make a mess of your roses. It shows up as a dusty white coating on the plant’s leaves, stems, and buds. Powdery mildew won’t kill your roses, ...

If you grow roses in your garden, at some point you will likely encounter a soft whitish coating on your plants’ leaves, stems, and sometimes buds. This substance is powdery mildew, known to experts ...

CORVALLIS – Mild winter weather will most likely coax roses into bloom early, which means dealing with the usual diseases and pests earlier, too. When it comes to one of the country’s most popular ...

HORTICULTURAL beauty of the rose often depends as much on the foliage as upon the flowers. Powdery mildew caused by the fungus Spaerotheca pannosa is a very widespread trouble upon the leaves, ...

Powdery mildew appears as white or gray spots on roses, usually during warm, humid conditions. Catching infections early is key to stopping them from spreading by removing diseased parts and applying ...