scrog leaf problems

[djrico]

Hi All,

So here is a summary of my setup:

2 x GDP under a 24" x 24" screen
400w mh light
they are in the last week of veg
Fox farms grow big nutes
Fox farms soil

Here is my problem:

For a few weeks now the leaves have just been randomly turning yellow and dying off. This is only happening to some of the leaves though. I have moved the light up and flushed them. Any Ideas as to what it might be?

 

[otherwhitemeat]

How much/how often are you feeding? What is the realtive humidity in your space?

I'm sensing overfeeding, light may have been too close and low humidity. Looks like they are burnt at the tips from transpiring all the nutes in high light, low rh environment.

Dark green leaves are a sign that they might be slightly overfed or are suffering from some lockout issues.

Hope this helps a bit. SCROG on....

 

[djrico]

The fox farms was burning at first and then i reduced it to half dose after flushing. The light is about 30" above the plants. Temps hovering around 80

 

[bterzz]

No need to re-add nutrients after flushing. That fox farm soil has enough food in it to veg for a month, although you can feed sooner then that, its still some pretty strong stuff.

The nutrients are very hot as well. I started at 1/4 strength and slowly progressed.

Tiger Bloom is the same way so if you intend on using it, keep that in mind.

Big Bloom is a good organic that you dont have to worry about burning plants with.

I hope you fix your problem soon enough!
Best of luck!

 

[djrico]

thanks man. I used tiger bloom for my last grow and i didn't have this problem. Grow big is super concentrated