Help please! Humidity issue.

Hello

I’m entering week 4 of flower and I’ve been fighting a humidity issue. My humidity is currently at 66%. I’m getting my industrial dehumidifier and that should hopefully fix the issue. My question is, am I at a high risk of PM!? Or is it possible I caught it in time? My plan is as follows


Week 4:
55% 74 degrees.

Week 5:
50% 71 degrees.

Week 6:
45% 68 degrees.

Week 6-8:

Flush and keep at 45% and 68 degrees.

Any advice or input would help, this is my first run and I’m freaking out.

Thank you

Fans, fans, and more fans! If you can't lower the humidity, up the air circulation. It will be ok. Breathe

Had the same issue, my plants were just fine at 65% until week 6 or 7 but it’s a luck thing i guess. Keep everything clean, wash your hands always before going to the room. As for the final stages. I lower the Rh to 35% and my plants start shooting trichs like crazy.

Johiem said:

Fans, fans, and more fans! If you can't lower the humidity, up the air circulation. It will be ok. Breathe

Click to expand...

I have a lot of fans, and all the proper necessary things, that’s any I wasn’t understanding what was happening. I just believe that the basement itself is the issue and causes a lot of moisture. I’m just really nervous that it could develop. Thank you so much for the advice!

Aloecanna said:

Had the same issue, my plants were just fine at 65% until week 6 or 7 but it’s a luck thing i guess. Keep everything clean, wash your hands always before going to the room. As for the final stages. I lower the Rh to 35% and my plants start shooting trichs like crazy.

Click to expand...

Do you lower it to 35 in the last 2 weeks? And I do all of those things, cleanliness is everything! I’m hoping mine get lucky and I don’t have any issues but I’ve been stressing.

Ok, didn't realize you were in a basement, I grow in a garage in a rather arid environment so I just crank up the extraction fan and the issue gets resolved. I think the de'humi will be best in your situation. I have the opposite problem, my RH stays around 40%

The only way to get wpm is by bringing a spore into an ideal environment. You have at least 1 of the 2 criteria so like other members said be clean #1
#2 air movement. Just using fans will drop your humidity even by a few %
#3 get the dehumidifier going asap

Temp swings of over 10deg night/day will also spike.humidity

I had 3 dehumidifiers running in there and they weren’t doing the trick so I had to bump it up and get the industrial one. I’m hoping it’ll fix it but I can’t help but to panic about developing PM especially because I’m in week 4 of my flowering. I have over 12 fans in my grow room, a CO2 machine, a mini split air conditioner, 3 dehumidifiers, and a humidifier in case it ever had an issue. Haha what a joke! So I’ve taken all the steps for the necessary things but I think the basement itself is just filled with too much moisture. My main issue right now is I’m terrified about developing PM. It’s my first run so you can see why I’m panicking.

My RH% this morning was 56%.

Last week, two days of 70%.

Currently they're at 54%.

The humidity controller is set at 45% with 7% to the negative.


~30 days into flower. I have zero worries because it is what it is. The 8" is on full blast. Two desk fans, two clip on, one tower, and a box fan hung flat off the ceiling. Coco.