Was Greenhouse Heater Issue, now Ethylene / Bulbs

Judy Glattstein via pbs pbs@lists.pacificbulbsociety.net
Sun, 31 Oct 2021 08:14:18 PDT
Bob, all I can say is several species of cyclamen, ditto oxalis and 
lachenalia, also nerine do fine.

On 10/31/2021 10:53 AM, Robert Lauf via pbs wrote:
>   Wow.  Truly the perfect storm!
> It's time to think about lighting the pilot on my vent-free heater and I usually need to take off the front and blow compressed air around the pilot to get out the summer's accumulation of airborne debris that clogs the little vent holes.
> The vent-free heater hangs on the brick wall of the house and was about $300 from HD back in the day.  Basically 100% efficient but I can only get away with it because I'm the on the city (natural gas) line.  Propane will produce traces of ethylene and the orchids don't like it.  If anyone knows whether bulbs are damaged by ethylene, that would be good info to share.
> I've been told that a tomato plant is a great indicator to test for ethylene because it is extremely sensitive to low concentrations.
> Bob  E TN where the fall colors are getting nice.  Frost will be a few weeks away, so it's time to start moving things back into the already-full greenhouse.
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