|
Tue, Feb 14, 12 at 19:55
| Hello, I have a Chinese elm that is hardy and very well aged. it is around 30yrs old. I was spraying with neem oil for regular maintenance and the following day I noticed an outbreak of black spot! Bummer I know. I was curious if go ahead and put it outside for the reminder of winter if this will harm the tree in anyway? It has recently snowed here but the temps are around 50 daytime and 30 at night. I was wondering if anyone out there knows or have personally done this. thannks for reading. |
Follow-Up Postings:
|
| Yes, it will harm it. Your tree isn't going to enter protective dormancy during a period of increasing day length, so it needs to be protected from frost and rapid temperature drops. Plants can suffer severe injury from cold, even if they don't freeze. An example might be moving a tree from a 70* house to a front porch when it's 35* - not enough to freeze the plant, but more than enough to cause chill injury. My guess is that you weren't using cold-pressed neem oil and the damage wasn't from the neem itself, but from the vehicle or other additives in the concoction. Why do you have it indoors in the first place? Al |
|
- Posted by BryonBonsai none (My Page) on Mon, Feb 27, 12 at 8:11
| I have kept them inside this year becuase they were simply looking to beautiful to put into dormancy. Since they are Chinese elms they can skip a dormancy period every now and then. I have only placed them from indoor to out when the overnight low wont drop under 40. |
|
| FWIW - your trees will wake up with a LOT more energy in the spring and put on a LOT more growth in the next growth cycle if you give them a long, cold winter's rest. That's not to chastise you, it's simply informational. You didn't mention what neem product you used - something other than cold-pressed oil? Al |
|
- Posted by BryonBonsai none (My Page) on Tue, Feb 28, 12 at 8:08
| I wasn't taking anything you said hurtful. Sorry if i came off that way. The neem oil i have been using is "Neem 2" The maker is Green Light. I have tried a few otc brands and am having the same problem with most of them. I'm thinking of just buying a concentrait next time. Any suggestions? |
|
| Yes - The pure, cold-pressed neem oil that Dyna-Gro packages is a great product for use on insects with sucking/rasping mouthparts. Al |
|
- Posted by BryonBonsai none (My Page) on Wed, Mar 7, 12 at 18:27
| Great. Just placed my order. what ratio would you mix it at? And also thanks for the advice |
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 Bonsai 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.