Does High Humidity - 70%+ - Guarentee Mold Regardless...

[TerpeneTom]

If I am recirculating the air within the area 1-2X per minute with a carbon scrubber? Depends upon strain? If I have oscillating fans everywhere and no stagnant air?

Thanks.

 

[Coconutz]

You can try and get your temps up

Remember that the leaf surface should be a few degree lower and the rh surrounding the leaf will be a bit higher...
It would be nice to be able to get it a little lower when they are ripening though!

 

[MIway]

is there a relationship between vpd & susceptibility to mold? i just see vpd pop up when peeps ask about rh & mold...

 

[Photosynthesis]

My rooms use to get into the 90% area when I foliar fed. Never had mold. They would consistently stay in the 70% range. If you put "good" fungi on the leaf surface, then it is hard for "bad" fungi to take hold.

Compost tea will do the trick for you.

 

[Coconutz]

Disease resistance...
However, without control over rh and temp it can get out of hand

 

[TerpeneTom]

So there are reasons to lower humidity during flowering beside mold? DHF suggests ~50%

 

[Scottish Research]

No, what guarantees mold is a dirty grow environment. The easiest thing for us to do is keep a clean grow environment. The hardest thing for us to do is maintain a clean grow environment. If your are clean, humidity becomes less a negative issue.