Rhodedendrons Blahs - Knowledgebase Question

Bellport, NY
Question by carolruthr
March 20, 2000
I have three rhodedendrons planted together for a full effect. On one of the plants the outer tips of the leaves are a rusty brown color, along with a dried out feel covering 1/3 of the leaf with a edge of olive green towards the stem.Branches are weathered,brown and dried they snap off.Is this a fungus or a diease.The other two seem to be okay.Sprinkler head faces this shurb directly.


Image
Answer from NGA
March 20, 2000

0

It is possibly a disease or fungal problem although it could also simply be a case of winter damage. For a specific diagnosis and suggested remedies based on the actual identification of the cause, you might want to consult with your local county extension (566-0673). In general it is a good idea to avoid watering the foliage as this results in increased evaporation of the irrigation water as well as inviting foliar problems to develop. When using a sprinkler it is also possible for the water to hit the foliage and then be shed outside the area of the roots, thus resulting in a lack of water in the root zone. This in turn could contribute to winter damage due to drought stress. Hence my hesitation in making a diagnosis long distance.

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

« Return to the Garden Knowledgebase Homepage

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by sunnyvalley and is called "Rose Mind Games"