Rose Care - Knowledgebase Question

Fredericksburg, Te
Question by fymejia
June 6, 2009
what causes the rose (flower) to turn brown? Once they open if at all, they look dirty and old.

Answer from NGA
June 6, 2009


Your plant has the symptoms of a fungal disease called Botrytis. (Botrytis cinerea) When fully developed, this disease prevents the blooms from opening at all; buds turn brown and decay. Early in the development of the disease, partially to fully opened flowers are attacked and individual petals turn brown and shrivel. The fungus is always present in rainy seasons when the old blooms are not removed. Be sure to prune away any infected buds to halt the spread. It will also help to remove spent flowers on a regular basis. Fungicides will help control Botrytis. Apply according to label directions - weekly applications may be required during wet spring weather.

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:



[ Join now ]

Today's site banner is by krobra and is called "Lantana Dew Drops"