turning yellow in flower?Help please

S=Bio-biz Pro mix 20% sphagnum peat moss, 35% garden peat, 10% high quality organic Worm-Humus, 30% perlite & 5% Pre-Mix.
E-indoor
E-soil,

SCL-ph'd water down to 6.5

SCLR-Soil runoff pH 6-6.5
E-Well water
E-Source water pH 7-8 from tap ph'd down to 6 / 6.5

E-Age of plant 10 weeks old (flowering about a month)
E-fertilizer used Bio grow 1.5 ml per litre (less than advised so not to nute burn) feed every 2nd week including up to now in flower with less grow now.5ml and more bio bloom mix 1.5ml per litre ,and .5ml bio biz top max
(Used fish mix once 1ml to try and green up didnt work )

E-Rate of application feed every two weeks

E-Lighting source 400w hps 24 inch's from plant tops
E-Air temperature during day light period under 12/12 22-25c
and 16-18c at night during dark period


E-Air 45-55 Relative humidity for flowering
E- 12/12
E-ventilation vent fan set on timer every 20-25 minutes


The lower leaves are all started to turn yellow and is now making there way up the plant, had happend before with first crop and I couldnt work out what was going wrong. During veg they where all fine but a month into flower now and it happening all over again, I am not sure if its the flower stimulator feed as I have read up the some leaves can go yellow when its added to the feed.


Two Khola's two Ganesha's dream and white widows

I have had and some sort of bug problem , And blew the hell of of them with a sprey I got that you can use on fruits and veg plants from the local hardware store. I havent seen any since I used it they seemed to be just in the soil maybe eating the roots the little shits,

I gave the plants a good flush with phd water yet they still seem to be yellowing more any help anyone? please ..

pics to follow soon

Some pic's of them

Root-bound and over-watered is my opinion.

Dive:stoned:

Hard to say. 6-6.5 ph is a little low for soil. Which ones are the WW?...are they in better shape?...or worse?

Have you transplanted lately?...I'd do that first, and 24 inches might be too far away?...try 15-18 inches with a 400 watt light. The leaves are sucking out too much nitrogen this early? I'd lose those drip trays, too. Must have good drainage away from the pots.

Hi Dutch pimp

I will pot them up into some new bigger pots so and losse the trays, I havent
given them any water in few days and the soil had dried up , So I am only going to water little bit each day, They dont seem to be sucking up as much water in flower !! thanks for your help :thumbsup:

yup, rootbound. what size pots you growing in? they look like gallon pots to me!! 6-6.5 ph is fine for flowering.

Yep what everyone one else says Rootbound.:hippy:

hi greenthing, cigarretts


Thanks for your help guys I am getting some more pro mix for the bigger pots, the same thing did happen even when I had them in the larger pots before, I think it could be the ph down mix that is adding to it as well it says on the mix that it has to be used in the flower stage, Has anyone ever used this type before?

All the plants do look the same even the white widow's the leaves going are going yellow from bottom to top and going really brown like really dry and are coimg off really easy? I was only going to flower them for another two weeks and harvest up then ?? what you guys think it will take too long for them to come back around I think... :)

Quote:

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Originally Posted by paddywacker

hi greenthing, cigarretts
says on the mix that it has to be used in the flower stage, Has anyone ever used this type before?

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PH solution should be used for all stages of the grow.
Do you have a good PH meter.

How long have you been using 1/2 dose of nutes, and is the 1.5ml 1/2 the weekly recommended dose, or 1/2 the bi-weekly (every other week) dose?

Underfeeding accompanied by rootbound...I'll bet they're pretty hungry.

Quote:

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All the plants do look the same even the white widow's the leaves going are going yellow from bottom to top and going really brown like really dry and are coimg off really easy? I was only going to flower them for another two weeks and harvest up then ?? what you guys think it will take too long for them to come back around I think... :) Jun-18-2009 10:09

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It's not usual for White Widows to lose all their fan leaves before harvest. Actually, I like it. Makes harvest a breeze....:thumbsup:

hi lads

thanks for the posts, :thumbsup: I only have the standard one where you use one drop of test solution into the test tube , its a cheap one but i read it off the chart as to where the mix is on the chart it has, They are some sweet looking plants i wish i could get mine to grow that fat man sweet.. :D
how long did you veg them for?

The feeding mix was every second week , And i cut in down to half mix because i thought i might have been given them too much nutes, do you think i should bump up the feed when i re-pot them ?

ps dutch pimp I am off to holland in july to get some more research done in the amsterdam collage .. reserach eh .. cant wait .. :hippy: