SPOTS

[Dreadscale]

Hi All, I'm back again
I didn't think I could stay away from plant problems tooooo long.

I got Spots.

Plants are 23 days into 12/12

Using Fox Farm Ocean/Forest Soil
Fox Farm Nute Schedule, Grow Big,Tiger Bloom,Big Bloom, and Beastie Bloomz, at 1/2 recommended strength
PH runnin at 6.5 or so
Room temp was fluctuating bad so I installed air con yesterday
Was 80f day-60f night, now 75f-60f
I water twice a week.
4 plants seem to be getting N deficient and 4 are on verge of N toxicity, the hi N plants have no spots.

Spots are confined to the bottom and middle of plants.

Thanks For Your Input

Dreadscale Reviewed by Dreadscale on 04-07-2008. SPOTS Hi All, I'm back again:D I didn't think I could stay away from plant problems tooooo long. I got Spots. Plants are 23 days into 12/12 Using Fox Farm Ocean/Forest Soil Fox Farm Nute Schedule, Grow Big,Tiger Bloom,Big Bloom, and Beastie Bloomz, at 1/2 recommended strength PH runnin at 6.5 or so Rating: 5

[the image reaper]

good diagnostics here: Revised: The Complete Guide To Sick Plants,pH and Pest Troubles - PlanetGanja.com

just offhand, looks like possible calcium deficiency to me ... if using reverse-osmosis or distilled water, you need to add Cal-Mag+ to replace the missing minerals ... good luck :smokin:

[stinkyattic]

Looks Calcium related to me too.
Check the pH of the RUNOFF and you probably will end up flushing, then start feeding again with a complete bloom fert. If your water is not tap water of appropriate hardness, you need to add calmag plus.
What is your water source?

[Dreadscale]

Thanks for the Input.

Been working a lot, kinda neglecting the forums.

I treated for a calcium problem, I believe this was caused by OD on the PH up. The soil runoff seems fine, and also I use Tap Water.

I did not flush but will if no improvements by Sat., After treating with added Calcium and Magnesium to the normal Nutes the plant smell changed from a SKUNK smell to GRAPES.

Any Ideas if this is good or bad?

Photo of Runoff PH

THANKS AGAIN

[Rusty Trichome]

Any Ideas if this is good or bad?

Depends on if you like grapes, lol. Perhaps they are just now developing their full bouquet. :thumbsup:

Not sure if this is youer problem, but what the heck. The crispyleaf usually indicates, in my grow, that there is limited or no transpiration going on in the leaf. Usually the plants closest to the fans are afflicted worse.

Do you have fans or the A/C blowing directly on the afflicted middle to lower parts? If too warm, and too strong of a wind blowing on them...can affect the plants transpiration, causing necrosis. The plant can't replace the moisture loss caused by the heat/wind fast enough for hydration of the leaf tissues. (pale-green leaves, increasingly crispy over time)

Living in the desert, I fight this battle hard and often, and even with the best of care...I still get the crispyleaf, but the grow continues, lol.

If this doesn't seem likely in your case, please disregard the following, and keep in mind, it goes against some folks' conventional wisdom., lol:
What works in my enviornment (heat) is to:
Keep humidity down. Heat and dead spots (low wind) can cause mold.
Discontinue foliar feedings except to correct deficiencies. Tends to burn the plants. (every drop of water is like a little magnifying glass)
When foliar is necessary I raise the 400w lights till moisture is absorbed or evaporates.
Pull fans back a bit, aim the airflow so as to push the heat up, and raise the lamps a few extra inches.

This is basically how I get away with an outdoor flower room with (outdoor) temps in the 120's, and humidity at around 9%. No matter what I do, I can't keep the flower room temps below 90 during the day, but have been doing this sucessfully for years.