Is this bud blast? last week I popped open the sheath. (greenbuds all good) then yesterday I attempted to remove the sheath entirely by pulling upwards on it but only partially detached it (see where spike attaches to pusedobulb) (FYI this is a large white Cat)
https://www.icloud.com/sharedalbum/#B0hGrq0zwJIv4TK
I've just noticed a yellowing in the buds and Sheath the day after. I also see some more pronounced veining in the bud which has me worried sick.
I carefully removed the entire sheath just now and treated the wound with cinnamon. Was the damaged sheath tissue alerting the plant to stress?
What plant hormones/chemical messenger causes the buds to blast? is it like a stress hormone? has anyone looked into this?
---------- Post added 02-24-2016 at 01:42 AM ---------- Previous post was 02-23-2016 at 11:54 PM ----------
https://www.google.com/url?sa=t&rct=...14733917,d.dmo
"There is a report that 2-napthoxyacetic acid (2-NOA) at 40 mg litre−1 prevents bud drop in
Dendrobium bigibbum. It has been shown that GA3 at 50 mg litre−1 overcomes ethephon-induced bud blasting in a Cymbidium hybrid. These studies indicate clearly the potential of using plant hormones to control bud drop in orchids"
Sheath removal causing bud blast? Stress hormones in Orchids
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