know1 seems to know

[polyploid]

hi folks.. new to this site jst found it other day looks promising lol.. anyway i have a major problem have tried other websites and looks like know1 knows what the problem is.. been growin for about 15yr and never had on going problems like this.. this situation has been going on for 6 months now never getting to the end of the crop i pull it down and need to start again.. im making this site my last try hopefully sum1 will know here wots going on.. if not there comming down AGAIN cant take any more of this its got far too much for the brain im cracking up.. anyway here they are see wot u think lol the leaf u see are thick feeling going yellowish not growin at the growing tip looks like a boron def but without the brown markings lol scared to mention boron hehe read an enoumous post earlier about boron hahaha.. im in nft.. plants are skunk1, super skunk, ak48 .. 3 seporate tanks all doing same thing... cheers folks

 

[mace_ecam]

altough i hate to tell people that this might be a trace element def (iron), it lokks that way too me.
Using too much pH down (phosporic acid) will lock out Fe in no time by reacting with it to useless iron phospates.
I think its best if you start describing your envornment, including lights and nutes, temps, etc... and of course the water source.

 

[Guest]

Have you compared pics and conditions in the Complete Guide to Sick plants:
http://www.icmag.com/ic/showthread.php?t=11688

 

[Guest]

I like the iron call too...

In the second pic....

in the upper left there is a small leaf well below the top of the plant which has the same yellowing....

that fits with iron def....


ON a side note....

One has to be a bit careful with considering the complete guide to be completely accurate...

For example I dont think one of her pics shows iron def....

Its the one with the yellow leaves....

That one to me doesnt fit iron....

If you look at the pic just prior to it going yellow was severe interveinal chlorosis...


fitting more likely a severe magnesium problem rather than iron....

This thread looks to me the prototypical iron def problem...

For that matter neither of the two pics she has a that great to demonstrate what normally happens with an iron def...

This one does....

Canna used to have a sick plants link and it was great.... I cant find it anymore....

The pics they showed...

When new leaves were being made the outer tips were darker green but as they grew out the inner leaves lighter green.... as though the plant simply ran out of iron as it was making the leaves....

thats what the pic here shows....

and that occurs anywhere on the plant that has new growth...

 

[polyploid]

hey lads a think u may have cracked it first post and right on im sure.. right the story is is that when i use my water for sum reason i need to put in quite a bit more ph down so have started using my mums water believe or not had water board out checking my water theytook tests and said was all fine well i know its not fine although the ph isnt much different from my mums i only need a tiny amount but not with mine it seems... things were fine using my mums then thought it was time to try mine again now a disaster again roots hate my water for sum reason.. temps are fine between 75-80 humidity 40-60% nite time temps 72degusing greenhaze nutes used for yrs..so if yous are right how do i fix this problem?? cheers again folks.. it seems to be only at the growing tips and i did check with the sick guide but couldnt see same as wot i have...cheers

 

[Guest]

What I would do is to foliar feed some seaweed extract on the plants....

or something else with high micros....

then if that seems to help take some other action....

Foliar feed should help the fastest...

 

[mace_ecam]

Hi budleydoright,

Canna used to have a sick plants link and it was great.... I cant find it anymore....

don't have the link either, but a few pdf's on my HD, around 3MB.
Got an safe email addy that will take that much from a hotmail account?

Ps: i fully agree with what you said about the completeness and accuracy of "stoner" guides

 

[polyploid]

any1 know how i fix an iron def then? cheers

 

[mace_ecam]

What budleydoright helps as a fast fix for the problem, in order to fix the cause you need better water, different nutes or you have to change your pH down strategy

what nutes are you using?

 

[Guest]

It could be as simple as your ph is too high.... you may have plenty...

I would look at your ferts....

see the amount of iron and see if its cheleated or not.....

that sort of thing....

 

[sproutco]

What ph are you using? What are nutes are you using and how much? Be as specific as possible.

 

[Guest]

PH issues should be looked into and ruled out before any adding of ferts. Although, that does sorta look like pics I have seen of iron defs from peoples plants on other sites. Do check and see if the iron in your ferts is cheleated. Im sure it is but who knows. Maybe, a mag def could play a slight role here. Just check in these things but ph should be first.

 

[sproutco]

Maybe, a mag def could play a slight role here.

Mag is not a choice. Here is the choices...

 

[polyploid]

thanks folks.. the nutes i use are called green haze have used for yrs and yrs and never a problem.. the ph i try keeping at 5.8 so cant be ph .. as mace ecam said if had been usin quite a bit of ph down which i have done can be the cause.. well that sounds more like it to me no using my own water any more so hopefully pick.. up nutes are at 1.5.. 5 days into flower and doesnt say anything about wots in the bottles jst sum dutch info im sure.. but i know this stuff is made in the uk.. will give a folar feed of nitrozyme and hopefully help ..cheers again

 

[Guest]

Mag is not a choice. Here is the choices...

Why are those the choices?

 

[sproutco]

Why are those the choices?

Because magnesium is mobile in the plant. New growth would have magnesium. These are not the choices...

 

[Guest]

Thanks sprout, I did not know the difference between the 2. C'mon man. I said maybe as in it sorta look like it. I think another member said the same thing. But I feel like it looks a lot like iron def pics I have seen from somebody I helped on planet ganja.

 

[polyploid]

thanks for the help folks really appreciated.. treating this as iron def so water source has changed sprayed the leaves with nitrozym jst as the lights went out will that help u think ? should the plants jst come back after a bit time or should there be any other thing im better spraying them with ? cheers