My Plants are dieing. Please Help

dodotheclown · Feb 25, 2013

My Plants are dying. Please advise as to what you thing is causing this? and what i should do?
This is only happening to the plants in Veg. My bloom tent is doing very well.
I am using bubbleponics. Botanicare Nutrients. I thought i over fertilized them so i drained the solution and just used R.O. Water and they are still getting worst.
Only 3 totes out of 6 are doing poorly. PH is between 5.8 and 6.2
I have not seen any spider mites but i have seen a few spider webs.

Thank you in advance for your reply :-)

mrmarcusdaballa · Feb 25, 2013

ph should be around 7.0

mrmarcusdaballa · Feb 25, 2013

azatrol if you can get some quick and soapy water wash down of all leaves u spot with webs bugs or spots....handle with care and good luck...keep me posted...

mrmarcusdaballa · Feb 25, 2013

I would probably toss the one in pic 2...looks like a lot of tlc would be needed and not realy sure it would be cost effective to keep her going....but your garden your rules...stay up

Bakatare666 · Feb 25, 2013

PH is fine for hydro.
How long ago was your last feed and the flush you spoke of?
Get your glass and look real good under the leafs for munchers.
Get the pests under control before you go changing any nutes drastically.

aknight3 · Feb 25, 2013

woah first off. if its hydroponices it should NOT be 7.0, the ph should be more like 5.5 to 5.8 they look like they were overfertilized and then eventually locked out, i would run 100ppm water at 5.8 for a few days, good luck, do NOT let your ph go above 6 in hydro or they will die, quickly.

*BUDS · Feb 25, 2013

look like they were overfertilized and then eventually locked out,

I totally agree with ak, maybe in reverse though. Locked out then overfertilzed when tryting to correct the def. They are now burnt beyond repair the droopy ones.

Wubstepp · Feb 25, 2013

In the 2nd picture the plant at the back deff has magnesium deff

hotrodharley · Feb 25, 2013

pH is the original problem.

View attachment 2542633

HeartlandHank · Feb 26, 2013

I would get your PH in the 5.7 range... If it is drifting, keep it between 5.4 and 6.2... feed 1/3 strength base and full strength cal mag+.

I was never spectacular at hydro though.. haha.

hotrodharley · Feb 26, 2013

Note when the pH drifts to 6.0 (actually around 5.9) or higher the uptake of potassium (K) and Calcium (Ca) are almost nil. Or at least far from optimal range for proper uptake. This despite any need for either by the plant. People see the results of this - a deficiency. More nutrients. Then comes lockout. Deficiency persists. More nutes = Burn. Buds is right.

HeartlandHank · Feb 26, 2013

aknight3 said:
do NOT let your ph go above 6 in hydro or they will die, quickly.

I'm not much of a hydro grower.. but in my experience, this is just not true...
In flood and drain I spent much time diligently keeping my ph mid 5... my plants did ok...
I then started phing to 5.5 and letting it drift up to 6.3. Honestly, this was just out of laziness.. My plants did better than when diligently at 5.5 though. Also, the rocks could have been salty and lowering the ph in the actual root zone while the res was reading higher. or something like that.?.

I would say my flood and drain plants spent 40% of their time in 6- 6.3 ph and they did not die at all, let alone quickly.

That was just my experience though... I guess it is possible that my meter was way off for the flood and drain times. I spent about 2 years with that setup then picked up the coco..

Is a ph 6 death something you read about or is that from experience?

I came to the conclusion that the drift gave the plants the opportunity to use a wider variety of the nutes. I don't know though.

aknight3 · Feb 26, 2013

hotrodharley said:
Note when the pH drifts to 6.0 (actually around 5.9) or higher the uptake of potassium (K) and Calcium (Ca) are almost nil. Or at least far from optimal range for proper uptake. This despite any need for either by the plant. People see the results of this - a deficiency. More nutrients. Then comes lockout. Deficiency persists. More nutes = Burn. Buds is right.

i agree, another big problem is people mixing nutrients in 5 or 10 gallons resevoirs' and wondering why the ph swings from 4 to 8 every couple hours, you need to mix alot of water at a time to get it very consistent, and consistent is king in my gameplan

HeartlandHank said:
I'm not much of a hydro grower.. but in my experience, this is just not true...
In flood and drain I spent much time diligently keeping my ph mid 5... my plants did ok...
I then started phing to 5.5 and letting it drift up to 6.3. Honestly, this was just out of laziness.. My plants did better than when diligently at 5.5 though. Also, the rocks could have been salty and lowering the ph in the actual root zone while the res was reading higher. or something like that.?.

I would say my flood and drain plants spent 40% of their time in 6- 6.3 ph and they did not die at all, let alone quickly.

That was just my experience though... I guess it is possible that my meter was way off for the flood and drain times. I spent about 2 years with that setup then picked up the coco..

Is a ph 6 death something you read about or is that from experience?

I came to the conclusion that the drift gave the plants the opportunity to use a wider variety of the nutes. I don't know though.

you are right, some strains can handle higher ph in hydro, like sativas, i have ran some that like the ph about 6.5, BUT for the most part, and for most strains, 5.8 is str8 optimal, sometimes even 5.5, but it is really strain dependant, you def could have had a strain that did well in the 6's, not something i woudlnt beleive, but as a general rule, for beginers of hydro, keep it below 6. good lucl

dodotheclown · Mar 2, 2013

Please give me your opinion. I think i figured out my Problem.
I live in the North. Average outside temperature this time of year is 30 degrees Fahrenheit.

The average temp. under my lights above my plants is 80 degress. My garden is in the basement.
The Averate temp. of my solution in each of my totes is Mid 60's.
This is the first winter grow i have done and i just figured my solution would be the same temp as the air.
I think my solution may be to cold.
Would this cause my plants to die?????

nick88 · Mar 2, 2013

I actually like a lil floating of the PH.. I start at around 5.5 then over the next 3 dys it usually climbs to around 6.0 to 6.3, then i take it back down to 5.5. Plants seem to really like it, at least the strains i run do. Not saying that's the way to do it, but it's a system that has worked well for me.
As for the res temps, i keep mine in the 60 to 65 range, if it gets too warm you get a whole lot of problems.

My Plants are dieing. Please Help

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