Lockout at week 4 of flower. root disease, RA's, ?. Please Help!

[EclipseFour20]

There are many out there--but these graphs indicate differences between soil vs hydro for ideal grow medium pH. Then you have "strain variance".

And remember, the soil pH declines naturally (it normally does not remain the same or increase over the life of the plant); one trick to master is to start with a "high pH" so at harvest time, your grow medium is still within the lower range. If you start at 6.3 pH...I guarantee by harvest you are well below 6.

 

[pappy masonjar]

Thank you for that.
i wonder if Sunshine #4 is considered soil? its mostly coco and perlite.. maybe it would fall somewhere in between those charts??

It looks like maybe if that cheap meter i have is accurate, than maybe my soil ph is too high..?
It looks like anything over 7+ for soil is locked out.

Im also wondering why all of a sudden would this start to be a problem for me.
like i said, i never check my ph and shit has always been fine.
I definitely am gonna get a soil ph meter asap.

 

[pappy masonjar]

But that would kinda make sense though.
If the soil ph starts off good.. and my plants are healthy in veg, then they start getting fuked up once the ph gets outta whack.
seems reasonable.

 

[EclipseFour20]

Exactly!

Now the teeter totter effect, if your soil pH is out of whack and the plant shows "calcium deficiency"--it now is obvious how that happened; especially if the soil pH is 6.3 or under. So what do people do to overcome this "deficiency"? They jack up the quantity of calcium to 2-3x what should be used...in order to have adequate "plant available" calcium. Why? cuz the soil is 2-3x inefficient.

The more the pH is off....the greater amount of nutrients are required (thus wasting more $$$) to obtain a specific amount of nutrients to become "plant available".

 

[stihgnobevoli]

dunno what that big bug is, drosophilla? but the rest are fungus gnats, not enough to cause serious issues if that's all you've caught in a month/week(s). i've had more gnats than that before issues arose.

 

[Corpsey]

Yeah, there are no root aphids in those pics.

Is there anything new in this room since this problem started? Pretty strange. But I would be curious if the next plants you put into flower do this. Your veg looks fine, so if it does happen again it might be the soil or something else in the room