Questionable fanning technique causing trich?

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MasFina
Snow Shredder

Registered: 05/08/06
Posts: 788
Loc: Mountains

Questionable fanning technique causing trich?

#6736647 - 04/01/07 11:10 PM (19 years, 5 months ago)

So someone is trying to induce pinning and he got the idea to use a fairly powerful but small fan to blow into his greenhouse several times a day to get a really thorough air exchange, followed by misting to get RH back up. He has been seeing little spots of what looks like trich popping up here and there and he's wondering if this aggresive fanning technique is to blame. Think this is the cause? Should he disinfect the greenhouse?

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RogerRabbit
Bans for Pleasure

Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 2 months

Re: Questionable fanning technique causing trich?

[Re: MasFina]
#6736781 - 04/01/07 11:51 PM (19 years, 5 months ago)

No. Trichoderma in the fruiting chamber is caused by not enough air exchange, not too much or even too dirty. Green molds in spawn are caused by improper sterile technique, but in the fruiting chamber it's as said above, provided the cultures were clean when placed into fruiting conditions. There is no need to filter air entering a fruiting area. Good luck on finding the cause. Look for areas the air is blocked and doesn't circulate. A small oscillating fan might even be a good investment if your greenhouse is large.
RR

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