GrowHeads....Please Help....Burn or Mites?

specs: Spare corner of bedroom. Gh waterfarms x 4...2 different rez's cause two different ages. Both these plants are just starting week 8 (day 49 today) I have a cool tube with 1kw that is sitting about 8-10 inches above these plants with an oscillating fan that is keeping the grow area temps at 78.

I'm using Botanicare stuff....CalMag, Pro Bloom, Hydroplex, Cannazyme, LK and Sweet to between 130-1400. The only difference between this grow and my last one is that in this grow I am using hydroton vs higromite rocks.

The bb has obviously got a nitrogen def (which I've never seen in my hydro setup before btw) but its the CC (plant with the lighter) that really worries me. She's growing great and looks happy but all the "older leaves" seem to be having problems. Here's a pic of both plants today.
I'll post pics of the leaves in the next thread.....sorry but have dial up and takes forever to upload pics.

Here are some close ups of the individual leaves......and yes....my very first thought was spider mites. But here's the catch.....I can find NO evidence of bugs....no mites (w/15x mag) nothing moving around at ALL, no webs.....no sign of ANY abnormalities on the buds and bud leaves. All I am seeing it on is the older leaves AND it seems to be much more common in the leaves the seem to get hit by the oscillating fan often. When I looked at the back of the leaves (and I'll post a few more in the next post) it really appears as though the leaf is being BURNED through....that and the edges of the leaf as well.

This whole thing seems to have come up in the last week but I am seeing changes fairly fast the last few days so I really could use everyone's thoughts and expertise.

Is it mites? Am I just in ridiculous denial? Should I spray these plants immediately? (I have Fox Farms Don't Bug Me) and keep spraying them until harvest? I have pets in the same room so I cannot put in the no-pest strips that seem to work w/mites.

Sme plant......next (and last) post I'll post a pic of a bud and one more leaf underside.....hope I don't overdo....:(

Hey Sis. chk. your email ,
All the cc cross plants I've done looked like that minus the brown burns ?
They kinda yellowd more like your B.B is . No clue here now that Im able to see them .
Sorry not much help , kinda like the trolling mtr. LOL .
Crispi :jointsmile:

Photo of one of the buds and another underside of one of the leaves in the other photo.

Any thoughts, tips appreciated...Thanks.. :)

I believe you have a minor potassium deficiency ... it starts in dots like that, and on the edges of the leaves, as it gets worse ... Revised: The Complete Guide To Sick Plants,pH and Pest Troubles - PlanetGanja.com ... that's how I diagnosed mine, when I had the same spots ... 'fixing' it won't restore the affected leaves, and it's not a 'plant-killer', mostly cosmetic, until it gets severe ... :smokin:

You do NOT know how glad I am to hear NOT say.....you idiot....of COURSE ITS MITES AND ANY NOOB COULD SEE THAT. :eek:

That would make sense with nitrogen def going in the blueberry...although Im not sure why.....ph is good and plenty of nutes.....perhaps with the cooltube lower the water my plants are in are getting too warm? X-C told me (wisely..I'd never have thought of it) to check leaf temps with the cool tube on which I wil do once the room is back to normal.

The two main diffs between this grow and my others (and hadn't seen this problem) are the cool tube and the hydroton.

Thanks for help reaper and X-C :)

Ps....Just came back from IRs thread.....LOW HUMIDITY can cause K def.....mines in the 20's....I LOVE YOU GUYS!!!!!!!

Quote:

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Originally Posted by the image reaper

I believe you have a minor potassium deficiency ... it starts in dots like that, and on the edges of the leaves, as it gets worse ... Revised: The Complete Guide To Sick Plants,pH and Pest Troubles - PlanetGanja.com ... that's how I diagnosed mine, when I had the same spots ... 'fixing' it won't restore the affected leaves, and it's not a 'plant-killer', mostly cosmetic, until it gets severe ... :smokin:

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Reaper ,
This is the C.C. cross we were talking about .
Even the 2nd. gen. stuff looks crazy yummy . :thumbsup:
Crispi :jointsmile:

Quote:

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Originally Posted by xcrispi

Reaper ,
This is the C.C. cross we were talking about .
Even the 2nd. gen. stuff looks crazy yummy . :thumbsup:
Crispi :jointsmile:

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the Canadian Seed Co. freebies from Hemp Depot last year ? ? ... yes, those were great seeds, alright ... :thumbsup:

I took leaf readings as X-C suggested and the affected leaves have temps in the low 80's...82,83 (none under 80)so I 've pulled the light back also.

Another thought....I was going to start flushing both these plants this weekend. Should I wait if there are defs or something and if I do wait...how long should I wait? I usually use FloraKleen for 3ish days then straight ph'd water but I'm not at all sure I should do this with these plants.

Ideas?? Options? Solutions??

thanks.....:thumbsup: