Is this a Nitrogen deficiency?

[ftworth]

Afghan
Soil
FloraDuo at 50%
Week 5 flowering
400w HPS
RH 66 Temp 66f
LST and Supercropped


Is this light green color and yellow flecking a Nitrogen deficiency. I am following the flora duo schedule at fifty percent but am thinking I may need to bump up the N or bump up the strength. Any help would be appreciated,

Thanks P.

 

[Ukeveryday]

Re: Is this a Nitrogen deficiency ?

Wat ph are u feeding?
Wat is the run off ph??

 

[go4snypr]

Re: Is this a Nitrogen deficiency ?

this late into flower you should see some yellowing, you should have been giving less N in flower than veg as the plant doesn't need the N, it wants more P and K. almost looks like some spider mite damage though. can you take a close up of one leaf. or does the leaves look like they have little white spots??

 

[Dusty Kiefers]

Re: Is this a Nitrogen deficiency ?

That looks like spider mite damage.

 

[OlderStoner]

Re: Is this a Nitrogen deficiency ?

Too little detail in the photo. Look at the underside of some of the bigger fan leaves. You'll probably see signs of them there. If you've got a magnifier of any kind use it to see what you've got going on there.

 

[NuttyProfessor]

Re: Is this a Nitrogen deficiency ?

That looks like spider mite damage.

i agree spider mites

 

[Alienpus]

Re: Is this a Nitrogen deficiency ?

It does look a lot like spider mite damage but pic isn't clear enough. A quick look on the underside of a leaf for eggs or mites, and little webs at leaf and node junctions would confirm this.

 

[Jesstar]

Re: Is this a Nitrogen deficiency ?

Defo mites. Late in the infestation as well by ze looks. My first grow was all but decimated by them as well, I tried natural remedies but to no avail. If I ever get them again wood I'll probably turn to the Sierra Natural Science stuff. Lots of guys on here have had great success with their products. Either that or I may give neem oil/ Eco oil a try first..

Good luck dude.

-J.

 

[Jesstar]

Re: Is this a Nitrogen deficiency ?

I'd probably say there's a bit of a deficiency/ lockout as well but that may be just the flowering yellows..

-J.

 

[Fuzzy Duck]

Re: Is this a Nitrogen deficiency ?

As many have said already about spider mites i would check for them first, i even thought the same thing myself at first glance of the pic's.


How ever you should be on full rate application of nutrients by now also

That alone may suggest a def problem... but none of that is ya standard macro nutrients def which one may suspect in flowering !

 

[BuddroGreen]

Re: Is this a Nitrogen deficiency ?

Also, try to get that RH down in the 45-50% or lower in flower, it will help keep mold/ powdery mildew away.

 

[ftworth]

Re: Is this a Nitrogen deficiency ?

I did indeed see some spider mites. Any treatment suggestions?

 

[ftworth]

Re: Is this a Nitrogen deficiency ?

I did indeed see some spider mites. Any treatment suggestions?

 

[NuttyProfessor]

Re: Is this a Nitrogen deficiency ?

try this one , last link was wrong Death of the spider mites

 

[Alienpus]

Re: Is this a Nitrogen deficiency ?

These things can spread like crazy and persist, don't forget to treat any other mite friendly house plants you may have.

 

[Stealthboat]

Re: Is this a Nitrogen deficiency ?

The 66% humidity might have had something to do with it, try to lower it as soon as you can, 35-40% ideally. I'd also suggest Neem oil for next time around. It's good at preventing pests but not so much at eliminating them.