spotting curling leaves???

[headshake]

what's good everyone? i am having a problem with my ladies. this is the second batch in a row (only 2 batches ever) that is showing the same problems. the leaves (seems like mostly up top) are getting dry, and turning different directions. they are also spotting with copper-colored spots.

it seems that they start showing signs once they are switched to flower. here is the troubleshooting form:

E-indoor
E-soil
E-potting soil,.10-.08-.06
CSL-Perfect Mix

SCL-nothing added to soil but perlite
SCLR-don't know runoff
E-Water source-tap
E-Source water pH-don't know
E-Age of plant-62 days
E-Super Bloom by green light, 12-55-6, 2 TBSP of molasses, superthrive (1/2 cap each watering)
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added)-water/feed, water/feed, water
E-Lighting source and distance from plant-8 CFLs ~1650 lumens each
E-Air temperature (both day and night if you are running a dark period)-day 75-82, night 65-75
E-Air % Relative humidity-20-40%
E-Lighting schedule-12/12
E-Type of ventelation-2x 120mm fans with appropriate size passive intakes

i know i need to get some way to check pH, that's next on the list.

i also have the full fox farm line-up for ferts, the wet and dry. should i switch this late into flower or just start them on the next batch?

thanks for your help!

-shake

here are some pics of what i'm describing. thanks again!

headshake Reviewed by headshake on 04-03-2009. spotting curling leaves??? what's good everyone? i am having a problem with my ladies. this is the second batch in a row (only 2 batches ever) that is showing the same problems. the leaves (seems like mostly up top) are getting dry, and turning different directions. they are also spotting with copper-colored spots. it seems that they start showing signs once they are switched to flower. here is the troubleshooting form: E-indoor E-soil E-potting soil,.10-.08-.06 CSL-Perfect Mix SCL-nothing added to Rating: 5

[Hydroponic Cabbage]

looks like nute burn a little; but yeah you def want to get something to test your ph.

[dejayou30]

My guess is pH lockout, figure out how to check it ASAP! Its necessary to know in order to grow good cannabis!

[headshake]

ok, ok. i will try to get a pH test kit tomorrow. that was what i was thinking, but who knows. on the last batch the leaves were deep, dark green, almost blue. i read somewhere that it was a lockout of either phosphorus or potassium, can't remember which.

thanks for the help!

-shake

[MdmPele]

this only happens after switching to 12/12? fine until then?

then I'd say it has something to do with the switch. likely nutes.

[headshake]

that's that way it seems mdmpele. i've got some new nutes to try, just not sure if i should switch during the middle of flower or what.

-shake

[irydyum]

that's that way it seems mdmpele. i've got some new nutes to try, just not sure if i should switch during the middle of flower or what.

-shake

Shake, IMHO, if you aren't happy with the way your plants are looking under your current program, then I would switch if you feel you have a better nutrient option now.

I think your SuperBloom may be a little hot, ie; too much phosphorus. If you are going to use a single bloom nute for flowering, you will def want something a little more balanced in the P and K numbers and low in N.

If you have the FoxFarm line, I would switch to them immediately. I would also recommend starting them at quarter strength since your CFL's wont cause the same aggressive nutrient uptake that HID lighting will cause.

My opinion only, hope it's worth the 2 cents it cost me.

[headshake]

sounds good irydum. thanks for the advice. i just watered them yesterday. so i might water them once more, and then begin the feeding with the fox farm line-up.

thanks again everyone!

-shake

[Divestoned]

that is a definate PH issue bro ..get that straight and you'll be back on track.
A PH issue will look like several kind's of deficiency...becouse it IS.

Dive:stoned:

[Rusty Trichome]

I'm with irydyum on this one. Looks more like overnute from using the Super Bloom by green light, 12-55-6 at full strength. Great for roses outdoors, but must be adjusted down, for indoors in pots. (especially using CFL's)

I'd flush well, and give the Fox Farms a try, using their handy feeding schedule as a guide. Personally, I'd cut the nutrients in half, but feed twice weekly. (same weekly totals, though) Easier on the plants, and allows for 'fine-tuning' your dilutions and quantities.
(but I'd use the Big Bloom at half-strength, only once a week, if you have it)

that is a definate PH issue bro ..get that straight and you'll be back on track.
A PH issue will look like several kind's of deficiency...becouse it IS.
Dive:stoned:

And you are sure about that...? Please tell us the indicators, rather than offering a blind "you have my word on it" diagnosis... What on the plant indicated ph lockout?