PM is a nightmare once it grabs hold of your plants. I was fine for years, then a couple months ago I got clones from a well known provider and 2 weeks later my whole garden was infected. It ruins the flavor of the buds too...ergh..
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dehumidifier didnt help me at all :(
- Thread starter charlesweedmore
- Start date
PM is a nightmare once it grabs hold of your plants. I was fine for years, then a couple months ago I got clones from a well known provider and 2 weeks later my whole garden was infected. It ruins the flavor of the buds too...ergh..
Dank Sinatra
Member
not bad advice cause you had an observation to back it up, perhaps not the best advice for the situation. I was more curious than anything, and trying to not sound like a dick cause i do that sometimes.
N
NOYB
I don't see how a scrubber in and of itself will lower humidity. Increased air flow will lower humidity if the RH of the incoming air is lower than in the grow space. If you add a scrubber and a fan sure that would lower humidity but the fan is what does it (air flow) and not the scrubber.
My experience is PM is mainly influenced by humidity but genetics also plays a major role. Had one grow with about 10 different strains and some were hit really hard and others barely touched. A friend said that PM can not exist in a room with humidity less than 46% but I have dealt with PM, but it was very minimal, with humidity well below that. For sure the PM in that grow was more of a problem with a higher RH though.
Charlesweedmore - The only time exhausting into the same space is an issue is if you do that lights on and have no CO2 source. That is basically a closed system. There is no problem exhausting into the same space lights off cause your plants require no CO2. This scenario is OK if you control temps and RH. A long time grower friend said lights off temps over like 75 can affect sulphur uptake. A lower/higher humidity shift is not really an issue long as your max does not go over like 55% but have heard some say a big shift between lights on/off RH promotes PM growth...or maybe that was a big shift in temps...can't remember. Some strains are more resistant to bud rot in general and large bud structured plants are more susceptible in general. Higher lights off temps is not good if coupled with high humidity cause the potential for, and growth rate of, bud rot increases. RH generally increases lights off because as temps drop RH rises and for most peeps lights off temps are lower.
Just so we're clear PM and bud rot (Botrytis) are two different organisms.
