Rose diseases

Rose diseases are a nightmare for any gardener. All your hard work and dedication to your plant can flash before […]

Black spot is a fungal disease (Diplocarpon rosae) that affects roses. The fungus develops as black spots on the leaves, which eventually cause the leaves to turn yellow and fall off. Not only does it look ugly, but it can also seriously weaken the rose plant. Black spot thrives in cold, humid climates, while extreme summer heat limits the disease.

Source(s): Randy Drinkard Several fungi are capable of causing stem canker and dieback of roses. Symptoms: Cankers begin as spots ranging in color from yellow to purple, depending on the causal fungus. The developing cankers become sunken, forming wrinkled or cracked lesions that are tan to black. Canker margins are ... Read more

A few years ago, a Master Gardener friend tore out all her KnockOut roses because of rose rosette disease. Since then, I’d heard about other gardeners having this problem; luckily, it had skipped our place.

A little proactive work in the fall rose garden can help prevent spring diseases--and cut down on spring rose garden work!

Rose rosette disease is a harmful, rapidly spreading rose virus that can pose a threat to the beauty of our rose gardens. Staying informed on the topic is our key line of defense against this rose disease. Click on the pin for a detailed look at rose rosette disease and answering all the questions you may have about it.

Knockout roses are relatively carefree, but they do take some basic care. These three care tips will help keep your knock out roses looking great.

How Do I Manage Rose Sawflies? My roses have lots of hollow and brown holes in their leaves. What is causing the damage, and how do I stop it?" Question from Pam of Massachusetts

Roses are a mainstay in the garden, but they’re highly susceptible to disease. Our guide covers common rose diseases and offers handy treatment plans.

Can you use Neem oil for rose pests and disease? Roses are not only attractive to humans but also pests and diseases. Many homeowners like going the natural route using products like neem oil. Is It safe? [DETAILS]