Aucuba turning black - Knowledgebase Question

Vestavia Hills, Al
Avatar for Trader3000
Question by Trader3000
September 19, 2005
My Acububa has a problem of the leaves wilting and then turn jet black. I would like to know why this happens and what I can do to prevent it.

Answer from NGA
September 19, 2005

Aucuba can have problems with fungus and bacteria diseases, especially when they are kept on the wet side and the foliage and stems are wet frequently. The symptoms are similar to what you described. I suggest you trim away all the black leaves and stems. Then back off on the watering, allowing them to dry out before watering again. It is better to water them by allowing a hose to run on the soil beneath the shrubs rather than sprinkling the foliage.

If the problem does not respond to these cultural measures, you may want to try a copper-based spray (available at most garden centers). Copper products can help shut down bacterial and some fungal problems. Avoid getting the spray on sidewalks, bricks and other masonry as it can stain it blue temporarily.

Thanks for the question. Please stop in again soon!

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

« Return to the Garden Knowledgebase Homepage

Member Login:

( No account? Join now! )

Today's site banner is by rocklady and is called "Beautyberries"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.