Fan leaves dieing FAST! Help needed

[clp]

Went to check on the plants 3 days ago and ALOT of our fan leaves on our Original Haze X Skunk #1 were yellow and wilted. Now some are browning badly and falling off!
I'm losing alot of my big fan leaves..

This plant is around 8 weeks into flowering but it takes 10-16.. They look like they need more!
I'm guessing it's an N deficiency but I'd like some advice from the experts.



Should I water with some Grow Big (High N) along with Big Bloom and Tiger Bloom?

These plants were given full strength nutes about a week ago and watered 2 days ago.
They are in 3 gal pots - Should we transplant up to five gal with fresh soil etc? Or is it too late in flowering to transplant?

PH of runoff is 7 (using dolomite lime).

We are phing water + nutes before use and our current lineup is
Blackstrap Mollassas
Calmag
3 Part FF line
Lemon Juice to adjust PH.

Some of our other OH X Skunk #1 plants are showing some symptoms too but our big plant is by far the worst..


Any help would be great!

 

[BlueberryLovr]

From appearance alone, almost looks like an overwatered + rootbound plant. Towards the end of the plant's life, its leaves do yellow up like N deficiency though.

 

[echo_chamber]

Looks like PH problems to me. If you have Dolomite Lime in your soil, you dont need to PH your water or add lemon.

 

[clp]

From appearance alone, almost looks like an overwatered + rootbound plant. Towards the end of the plant's life, its leaves do yellow up like N deficiency though.

Rootbound is a definite possibility.. What should we do about this?

This plant still has 5-7 weeks more of flowering.. Should I go to a 5 gal pot?

It's definetly not overwatered.

Looks like PH problems to me. If you have Dolomite Lime in your soil, you dont need to PH your water or add lemon.

Why do you say PH problems?
My runoff is testing at 7 and we were PHing to 6.0-7.0 range. The dolomite lime forces it back to 7 so our lemon juice shouldn't hurt..


Any other advice?

 

[Phedrosbenny]

I would definetly transplant.Better to take a chance then to just watch it wither up and die.I bet all will go well if you transplant it.

 

[clp]

Okay it's not too late? From what I understand there isn't much root growth during flowering.. I just don't want to transplant and have none of the medium used.

 

[krunchbubble]

Went to check on the plants 3 days ago and ALOT of our fan leaves on our Original Haze X Skunk #1 were yellow and wilted. Now some are browning badly and falling off!
I'm losing alot of my big fan leaves..

This plant is around 8 weeks into flowering but it takes 10-16.. They look like they need more!
I'm guessing it's an N deficiency but I'd like some advice from the experts.



Should I water with some Grow Big (High N) along with Big Bloom and Tiger Bloom?

These plants were given full strength nutes about a week ago and watered 2 days ago.
They are in 3 gal pots - Should we transplant up to five gal with fresh soil etc? Or is it too late in flowering to transplant?

PH of runoff is 7 (using dolomite lime).

We are phing water + nutes before use and our current lineup is
Blackstrap Mollassas
Calmag
3 Part FF line
Lemon Juice to adjust PH.

Some of our other OH X Skunk #1 plants are showing some symptoms too but our big plant is by far the worst..


Any help would be great!

do the fan leaves come off when slightly pulled on? if so, lockout....

 

[RetroGrow]

I recommend not using lemon juice or vinegar to adjust PH. These will break down and not maintain a stable PH. Use PH "Up" & "Down" when possible. If you have lockout as suggested, a good flushing can't hurt. I would pull plant from pot and examine roots to see if it looks root bound.

 

[clp]

do the fan leaves come off when slightly pulled on? if so, lockout....

Yes!

Thanks for stopping through Krunch..

So I'm guessing this is the problem.
A flush like recomended below would be the cure correct?

I recommend not using lemon juice or vinegar to adjust PH. These will break down and not maintain a stable PH. Use PH "Up" & "Down" when possible. If you have lockout as suggested, a good flushing can't hurt. I would pull plant from pot and examine roots to see if it looks root bound.

Hmm alright.. That's what we've been using. If we're using dolomite lime does it really matter if we PH? I'll definetly buy the PH Up down next grow but this ones almost done then I'm packin up for a bit..

It most likely is lockout.. We will flush. How much water should we run through it with a 3 gal pot? Probably going to flush all of our plants as the others are starting to show similar symptoms..

Also these are grow bags so pulling it out might be a bit hard. I can try though.. Should we transplant or is it too late?

 

[In~Plain~Site]

9 Gallons through a 3 gallon bag would suffice for the flush.

For taking a peak at the roots, I'd cut a 1" square patch out of one of the grow bags, maybe a couple different locales to get a bead on if it's root-bound or not.

GL

 

[argoagro]

Can you take a pic further away showing an entire plant & bag? It's hard to tell, but from what I can see in the first pic they look very small vs container size, a better pick would help us lean towards rootbound or something else.

 

[clp]

9 Gallons through a 3 gallon bag would suffice for the flush.

For taking a peak at the roots, I'd cut a 1" square patch out of one of the grow bags, maybe a couple different locales to get a bead on if it's root-bound or not.

GL

Alright we will flush ASAP.
Thanks!

What happens after we cut that square though..? Wouldn't water run pretty easily through the whole and leak everywhere? maybe we have some extra bags..

Can you take a pic further away showing an entire plant & bag? It's hard to tell, but from what I can see in the first pic they look very small vs container size, a better pick would help us lean towards rootbound or something else.

Small..? No way.. These plants have stretched a TON! They are outgrowing the tent. The plant that has it the worst is a mutant that grew two tops from the start. It got around 6 feet tall. We now LST'd it over to fit in the tent..
The rest of the plants were LST'd into tight crazy bushes..

If they are rootbound should we just transplant? Makes most sense to me.. Just don't want to waste medium

 

[In~Plain~Site]

Alright we will flush ASAP.
Thanks!

What happens after we cut that square though..? Wouldn't water run pretty easily through the whole and leak everywhere? maybe we have some extra bags..


If they are rootbound should we just transplant? Makes most sense to me.. Just don't want to waste medium

Make the 'peek-a-boo' cuts in the bags like a flap, that way you can just secure with tape if they're good.

You'll be fine with water retention/drainage

I would definitely check for RB first, then up-pot(if need be), then flush.

Let us know how you make out.

 

[laughingmoon]

To really get those built-up salts, consider soaking the soil, and letting it sit for a bit while those salts dissolve. Then flush that through. You can repeat a couple times with that 9 gals of water. NOTE: This is based on reading, not on actual experience.

Also, consider blackstrap molasses, as this helps regulate pH as well.

 

[Qupid]

I'm having the same probs in my DWC system. I'm flushing now and hopefully this will clear it up.

 

[Dorje113]

3 gal pots almost def. rootbound at 8 weeks.... transplant.

I wouldn't flush unless its really needed, you can get a soil test kit for under $20 that measures NPK and pH...

 

[clp]

To really get those built-up salts, consider soaking the soil, and letting it sit for a bit while those salts dissolve. Then flush that through. You can repeat a couple times with that 9 gals of water. NOTE: This is based on reading, not on actual experience.

Also, consider blackstrap molasses, as this helps regulate pH as well.

Yup we will be doing this soon..

I'm having the same probs in my DWC system. I'm flushing now and hopefully this will clear it up.

Let us know how it goes!
Same plants?

3 gal pots almost def. rootbound at 8 weeks.... transplant.

I wouldn't flush unless its really needed, you can get a soil test kit for under $20 that measures NPK and pH...

I will check the roots ASAP and transplant if it's needed (i'm guessing it definetly is.. We were planning on tplanting this week anyways..)

Is it harmful to flush even if they don't need it? I know it takes some of the nutes away too.. But I'm guessing this soil doesn't have much nutrition left.

and yea I've seen those at lowes. We have a PH meter but nothing to test NPK. What could you know from the results? Would you test the runoff or...?

Thanks!

 

[laughingmoon]

clp, it should not be harmful to flush. You clean out those salts, then you feed it to replenish lost nutrients.

 

[clp]

That's what I was thinking.. I'm probably just going to flush anyways. This is such a long flowering strain that I'm sure it couldn't hurt..

 

[Dorje113]

Since your already rootbound and going to transplant flushing is probably ok, but I usually use large volumes of soil and never need to flush.... but it is a lot more difficult to keep things balanced in a small 3 gal container.

Next time I think it is best to place the plant in it's final container a week before changing to 12/12. Container size depends on plant size, but it's impossible to go too big....

With the soil test, you will see if there are excess amounts or too little of the 3 main nutes, NP+K... and it also tests the pH of your actual soil, which is better than testing runoff... IMO there shouldn't be runoff.