The leaves on this rosebush turned brown and the blossoms dried up due to gray mold and “black spot.” Photo courtesy UC Master Gardeners. If you’re a gardener in Santa Clara Valley and the Peninsula, ...

Don't give up on your rose bush just yet. If your rose garden is your pride and joy, it can be devastating to watch as the health of a once-glorious shrub declines. Pests, diseases, and environmental ...

Just as your roses reach their peak, a common fungal foe may be lurking, ready to sabotage their vibrant display. Black spot, easily identified by the dark brown or black blotches that appear on ...

As with all plants, roses can succumb to many diseases and pests. Unfortunately, there are common diseases that target these hugely popular flowering shrubs, which can cause the plants to suffer and ...

Remember when you would walk into the classroom and your teacher would announce a pop quiz? Sometimes this felt like punishment, but the quizzes were often a great learning tool. Now’s your chance to ...

Roses do not have thorns; they have prickles. But there ARE “thorns” in the rose garden. Their names are botrytis, black spot, rust, downy mildew, anthracnose and cerospora leaf spot. They are all ...

Nothing takes the peace and relaxation out of stopping to smell the roses quite like an unsightly fungal disease. Rose bushes (Rosa), even those that claim to be resistant, often suffer from black ...

Q: While deadheading our rose bushes I found what appears to be rust. What causes this and is there anything I can do to prevent it? - Cliff Bjornstad, Fargo A: Rust is a fungus disease and by your ...

Achieving beautiful, healthy roses is a dream many gardeners have. These iconic flowers add beauty and color anywhere in the landscape, whether you want to boost curb appeal or punch up your backyard ...

A man in India is the first person thought to be sickened by a fungus that usually attacks and kills rose plants. Reading time 3 minutes A man in India recently had the misfortune of becoming the ...

As we enter the waning days of summer, many of our plants are just plain tired after enduring months of heat — and they’re showing it. Roses are no exception. They tend to get a bit leggy and ...