Yellow discoloration and dying branches

[GreatWhiteHuntr]

The leaves of my girl in bloom are getting yellow on them and dying mostly on the lower branches the top and middle of the plant look great


E- Indoor
E-Soil
E-specific medium Not sure what this means....
CSL-Soil type/brand Black Gold .13-.5-.10
HCL-Hydro/aero/soilless system type
SCL-Miracle Grow during vegatative stage and Tiger Bloom during Flowering
SCLR-Soil or slab runoff pH (Unknown)
E-Water source Well
E-Source water pH 7.4
HRT-Source water EC (if hydro)
E-2 months vegatative and 3 1/2 weeks in Flowering stage
E-Tiger Bloom
E-4 Tbs per gallon of water
E-1000W High Pressure Sodium
E-Air temperature (both day and night if you are running a dark period) day 70-80 night 60 to 65
HD-Reservoir temperature
E-Air % Relative humidity Humidity 60 to 70%
E-Lighting schedule 12 on 12 off
E-Type of ventilation your room has 8 inch exhaust fan and an oscillating fan
TR-Did you pre-soak your media in pH corrected solution? No

I hope I have done this correctly enough for you all to Help me. For now I have backed off on the water some and stopped the use of Nutrients....Please advise...By the way love this Forum:beatdeadhorse:

GreatWhiteHuntr Reviewed by GreatWhiteHuntr on 10-01-2009. Yellow discoloration and dying branches The leaves of my girl in bloom are getting yellow on them and dying mostly on the lower branches the top and middle of the plant look great E- Indoor E-Soil E-specific medium Not sure what this means.... CSL-Soil type/brand Black Gold .13-.5-.10 HCL-Hydro/aero/soilless system type SCL-Miracle Grow during vegatative stage and Tiger Bloom during Flowering SCLR-Soil or slab runoff pH (Unknown) Rating: 5

[foggyman]

hey there mate can you post a picture...

how old are the plants and at what stage are they in... 3rd week veg. 6th week flower etc.

your tap water ph source is stated but whats the ph after youve added your nute and additives but just before you give it to the plants??? it should be between 5.2-6.2 if your hydroponic and 5.8-6.8ph if your in soil. certain nutes will get locked out at ph values higher or lower than those stated.

its normal for a plant in the very later part of flowering to loose leaves.

what is the ppm-ec of your nute solution by the way...

sounds like to little rather than too much...

[Rusty Trichome]

Have you seen Fox Farm's weekly feeding schedule? The link is in my signature. You are overfeeding the Tiger Bloom at 4 tbs per gallon. Even if you meant 4 teaspoons per gallon, that's too much.

As froggyman said, lower leaf loss is common, but, the ph for ingoing water should be targeted at 6.3 to 6.8 in peat-based potting mixes. (like Black Gold) Do not use more nutrients, to lower the water ph.
Black Gold has no perlite in it does it? If not, you'll want to get some.

[dejayou30]

How big are the pots you have them in?

[GreatWhiteHuntr]

I do need to get a ph tester...I have already backed off completely from the Bloom for now last night I flushed the soil with 2 gallons of water. The Black Gold soil has perlite in it. The planter this lady is in is a five gallon bucket.:thumbsup: As of this moment the plant is in flower roughly 3 1/2 weeks to 4 weeks.

[Rusty Trichome]

You can test ingoing water with a freshwater aquarium ph test kit. ($7.00 US) I'd try and get one this weekend, and flush the excess nutrients with at least 5 gallons of properly ph'd water, (6.3 to 6.8 ph) and resume nutes on their next feeding day per the FF schedule.
Leaf damage is permanent and will look worse as time passes. New growth should be fine once you get your ph and nutes back under control.

[GreatWhiteHuntr]

Thanks Rusty I'll give it a shot. Are Aquarium chemicals ok to use or where can I purchase the chemicals to raise and lower ph of water.

[Rusty Trichome]

Vinegar or lemon juice work in a pinch, but no good long-term. My wellwater comes out at 8.0 ph, so I use phosphoric acid to bring it into range. (General Hydroponics phDown) Available at finer hydro shops and websites world-wide.

I try to use the proper tool for the job. Seems to work best that way...especially in the growroom. If it isn't formulated for the garden, I don't use it.
Unsulphered molasses being the only exception. :thumbsup:

[foggyman]

go and download a grow bible and stop listening to some of the peeps in this forum, as they only miss quote what they have read them selfs dude....

there are a hell of a lot of clever people on this site and then there are some who just quote and quote wrong... you know who you are....

[Rusty Trichome]

Sorry, GreatWhiteHuntr. This should only take a second...

go and download a grow bible and stop listening to some of the peeps in this forum, as they only miss quote what they have read them selfs dude....there are a hell of a lot of clever people on this site and then there are some who just quote and quote wrong... you know who you are....

...Then there are those with no clue. Tell us...which grow guide recommends you keep your ph so low with a soil grow?

Were some of you newbies to give accurate info, other's wouldn't have to come along and correct the errors. Your ph info is off base, and I really don't give a shit what your excuse for giving inaccurate info is, but likely you should gain at least some experience before giving it to others.
Check the link for FF nutrient schedule for soil. (which I've been using and following for years)
Check the bottom of the page, where it mentions ph recommendations.

Perhaps you should go re-learn the basics while those of us with actual experience continue to spread good cheer and tidings of joy. :jointsmile:

Any specific reason your rep is turned-off? Aren't you the Lucas guy that's in denial anout his failed Lucas techniques?