Advice on room conditions for cuttings?

drewbot

Member
I've been toying around with keeping a room entirely for cuttings. I leave town for weeks at a time and I've lost plenty of trays so just realize i'm working with the no-touch constraint. It's coming around pretty well and I keep the cuttings standing up with no dome and rooting very well. On the other hand I'm getting some potential whiteflies or thrips, and some PM. I keep the room at 72f and 76% humidity, light fan action, and 1800ppm co2.

My CO2 ran out and I ended up with the problems-- possibly because of the co2 running out. I used to run flower rooms by setting the CO2 to 2200 and letting the room purge due to overtemp. It would take care of flying insects fairly well by choking them out. I did this with success with the cuttings at 1800. I want to bump the CO2 to max level so that I can let it choke the buggers out without hurting the rooting process. Most likely the room will purge and fluctuate between ambient and 2200 pretty regularly. It's a tiny room so it doesn't cost much in propane. The other thing I wanted to do is make sure the air is exchanged enough. I could set the exchange rate and then let the co2 do what it does. Temp would be in range, too. This room is pretty much push button dialed to where I want. I'm just pretty sure that the exchange rate was too low and the co2 ran out, both- see-- CO2 is propane so it boosts the temp up to increase exchange rate. Hard to explain but if you have this setup you know.

Any suggestions? What exchange rate? Also, what is the max CO2? Thanks in advance ;)
 
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Wow, why so much work?

Put your cuttings in water and walk away. When you come back they'll be alive and have roots.

Let me find you a picture. BRB...

This was years ago when I went on vacation for 11 days. I shut the grow down for the trip, but I had clones with roots waiting for me when I returned. The pot, filled with water, has straight sides to allow the sheet to drop with the water levels as the clones transpire it. This could have sat for a month or more and had huge root systems.
 
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