Could low humidity do this?

shiva71

shiva71

Well-Known Member
Hiya
My other thread has died so ill ask here - 6 wk old DP Strawberry Cough in DWC under basic 135w QB.
Temps, pH, normal, ppm is actually dropping 100 a day so shes feeding.
Overnight the damage spread a lot, and the only thing was different was that the humidity dropped pretty low, 35%. And when i crank up the RH to 70% or so she seems to like it.
So...could this damage be due to low humidity?
Cheers!
 

Attachments

  • IMG_20200520_112011863.jpg
    IMG_20200520_112011863.jpg
    1.8 MB · Views: 109
  • IMG_20200520_112018704.jpg
    IMG_20200520_112018704.jpg
    1.1 MB · Views: 107
  • IMG_20200520_112031983.jpg
    IMG_20200520_112031983.jpg
    947.7 KB · Views: 109
  • IMG_20200520_112051605.jpg
    IMG_20200520_112051605.jpg
    1.9 MB · Views: 100
^^ second that @bk78 if everything else is truly within normal range, Cal/Mag
double triple check PH and PPM, give that water a good stir.
 
24-28° or thereabouts.
Yeah ive been thinking all along it might be a deficiency. Gonna bump ppm up from 900 to 1100 and see what that does.
Will read up on VPD.
Thanks!
 
shiva71 said:
Hiya
My other thread has died so ill ask here - 6 wk old DP Strawberry Cough in DWC under basic 135w QB.
Temps, pH, normal, ppm is actually dropping 100 a day so shes feeding.
Overnight the damage spread a lot, and the only thing was different was that the humidity dropped pretty low, 35%. And when i crank up the RH to 70% or so she seems to like it.
So...could this damage be due to low humidity?
Cheers!
Click to expand...
Those punctate rust spots are a classic lack of Ca symptom. I run 10% humidity and my plants only do that when they need Calcium. I use General Hydroponics CaliMagic because I like the ratio of Mg to Ca. Good luck and nice grow so far.
 
Sweet that seems to have done the trick, ppm and pH stable :)
Put my scrog in last night shes looking ok to me...
Cheers guys yous the best!
IMG_20200521_182836345_HDR.jpg
 
KingQuazy said:
That scrog is awesome. I was wondering how I could avoid buying a net. Thank you for posting this picture!!! (Im gonna do mine with pvc frame)
Click to expand...
Cheers :) My first scrog, its kinda fun tucking and tying the tips down!
Yeah i just drilled holes 5cm apart and threaded some string through to make the net. If youre interested...?

Super simple scrog

Hiya Pics are self explanatory, i thought of a few ways to support the frame with something attached to the dwc lid but i imagined that would be a pain. 4 hooks in frame corners, clip onto string strung to tent poles. Great thing is i will be able to just slide it up when i need to remove the...
www.rollitup.org
 
Scrog update if anyones interested...she's not quite as evenly spread out as id like, need to fill the two nearest corners. There is some tip burn i think thats the nutes, im throwing a bit more at her than i probably should (ppm rising 60-80 over a day). Otherwise i think she looks great, hope it continues :)
IMG_20200529_135000686.jpg
 
Im still having problems following, was it not a humidity problem and that good grower who grows at low humidity just great right?
 
2Hearts said:
Im still having problems following, was it not a humidity problem and that good grower who grows at low humidity just great right?
Click to expand...
I think it was a few things, i moved her into my living room which had crazy low humidity (20%) which didnt help, plus cal def, she definitely improved with added CalMag as suggested by the guys here.
 
curious2garden said:
Those punctate rust spots are a classic lack of Ca symptom. I run 10% humidity and my plants only do that when they need Calcium. I use General Hydroponics CaliMagic because I like the ratio of Mg to Ca. Good luck and nice grow so far.
Click to expand...
Yeah. I'm in the same boat my RH is never above outside , between 10-20% and they grow just fine as long as I cover the basics.
 
Cx2H said:
Yeah. I'm in the same boat my RH is never above outside , between 10-20% and they grow just fine as long as I cover the basics.
Click to expand...
That's good to know. Few people live outside the VPD and during winter when I can get very close to good VPD parameters my plants look like beauty queens. But during my brutal summers I'm afraid my girls look a bit ratty. Doesn't seem to change the high at all.
 
curious2garden said:
That's good to know. Few people live outside the VPD and during winter when I can get very close to good VPD parameters my plants look like beauty queens. But during my brutal summers I'm afraid my girls look a bit ratty. Doesn't seem to change the high at all.
Click to expand...

I am the complete opposite. Winter I struggle hard to keep VPD in check, summer is a breeze.
 
You must log in or register to reply here.

Similar threads

fartoblue
Do you reduce Co2 last few weeks??
Replies
1
Views
247
Mumbeltypeg
Mumbeltypeg
shiva71
Advanced deficiency help !!
2 3
Replies
43
Views
3K
shiva71
shiva71
shiva71
Slightly concerned...
Replies
1
Views
186
70's natureboy
70's natureboy
P
Temperature and Humidity
2
Replies
29
Views
1K
Prodigus
P
shiva71
Drooping throughout the day...
Replies
16
Views
802
shiva71
shiva71
Back
Top