|
| My father-in-law has two large rhododendron. They are both dying. I noticed ring like marking's on their trunks. The branches seem to be drying up and dying. The leaves are all turning brown and falling off. I noticed some orange/rust colored spots on them. I just don't know how old the leaves are. Some of the plant looks healthy. Most of it is dying.
Any idea's? Thanks, Stephanie |
Follow-Up Postings:
|
| One branch dying is indicative of borers or drought damage. There are a number of leaf spots or burns caused by fungi such as Botryis, Pestalotia, Phyllosticta, Septoria and others. Many are secondary infections happening after mechanical damage or environmental stress, such as sunburn, drought, winter damage or windburn. They generally occur during wet weather and many times are self limiting with drier weather. Good sanitation is helpful, so remove brown and fallen leaves. Also provide good air circulation. Spraying with Benomyl or similar fungicide can be useful, but is frequently not necessary. |
Here is a link that might be useful: How to grow azaleas
Please Note: Only registered members are able to post messages to this forum. If you are a member, please log in. If you aren't yet a member, join now!
Return to the Azalea & Rhododendron Forum
Instructions
- You must be a registered member and logged in to post messages on our forums.
- Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
- After posting your message, you may need to refresh the forum page in order to see it.
- It is illegal to post copyrighted material without the owner's consent.
- HTML codes are allowed in the message field only.
- No advertising is allowed in any of the forums.
- If you would like to practice posting or uploading photos, please visit our Test forum.
- If you need assistance, please Contact Us and we will be happy to help.