Thread in the hydrangeas forum forum by vanessa889:
31+ Hydrangea Stems Brown Spots. If your hydrangea has brown spots or rings on its leaves, there is a good chance that it is infected with hydrangea ringspot virus. Hello, i got this hydrangea last week as a present and i've watered it, but it is showing signs of.
How To Identify And Treat Hydrangea Diseases Gardener S Path from gardenerspath.com
Increase the amt of water this time of the year and give it some extra shade. Tan spots with reddish brown borders form on the leaves. .leaf spots (cercospora hydrangea) with purple margins and tan centers on bigleaf hydrangea.
Phytophthora root rot causes hydrangeas to develop brown spots on their stems, which extends above the soil line.
Aphids do not spread this disease. Avoid phytophthora root rot by cercospora leaf spot is rarely fatal, but it causes heavy spotting of the leaves and leaf shed, both of. Place the freshly cut hydrangea stems immediately into cold arrange the stems in a vase and place in a cool spot. This phenomenon is called increased cell pressure.
