Roses do not have thorns; they have prickles. But there ARE “thorns” in the rose garden. Their names are botrytis, black spot ...

explained that black spot is a fungal disease that impacts rose leaves, while a parasitic fungus causes rust on roses. "My climbing and rambling roses are covered in black spot and rust this year!" ...

Rust can sit on leaves, and the spores will ... as a fungal suppressant to prevent the disease from reaching the plant. It is a natural way to treat roses without using chemicals that could ...

While many gardeners are basking in the warm weather, it's crucial to keep a close eye on roses as the humid conditions can foster diseases like rust. Rust is a unique fungal infection that ...

There are several different types of rust fungus that occur in our area. Each infects more rose-family plants than ... those sheltering underground and in leaf litter.) More organisms than just ...

Also, a few of my daylilies are showing rust spots on the foliage. Should I dig them and discard? — Debora The spotted yellow leaves are the result of black spot disease. Knock Out roses ...

CORVALLIS – Mild winter weather will most likely coax roses into ... Plant Disease Control Handbook offers a list of classics that fight the good fight against black spot, rust and powdery ...