sick plant need advice

[rottenfork]

Ok now i am concerned one of the plants is definetly unwell, its leaves are turning yellow and dying. I read up a little and thought it might be nitrogen def so i got some Arthur Bowers Fish Blood and Bone i started to use it around 3 days ago but it doesnt seem to be working. The other plant is fine which is unusual as they are kept in the same conditions fed and watered the same at the same time with the same products can anyone help me out heres a few pics

[the image reaper]

what are the 'numbers' on your fertilizer ? ... bone meal is very slow-acting, takes quite awhile before results show ... same for the 'fish blood' (new one to me) ... don't know what you have available in Ireland ... the tips look slightly burnt, like they are getting enough nitrogen, has me wondering if you are over-watering ... :smokin:

[rottenfork]

feeding bio bloom with every watering which is every three days one litre
The numbers on the fert are 5.0-5.0-6.5 and im using distilled water

[the image reaper]

puzzling, :wtf: with numbers that high, I'm surprised you're not burning it to a crisp ... you shouldn't be fertilizing at every watering ... also, distilled water is a BAD idea ... distilled water has no calcium, magnesium, or any other necessary minerals, either ... those all have to be replaced ... :(

[WildFire.ca]

What ph are you feeding your plants at?
Are you in soil? I am guessing yes
What kind of lights are u using?
how tall are they?
Can we see a whole plant pic. I just like plant pic. If not where on the plant are those leaves from?

[rottenfork]

heres acouple of shots first two of the healthy one second two of the sick

[Weedhound]

I also agree with Reaper however that he's overfertilizing...imho.

[stinkyattic]

I see multiple deficiencies- N and S for sure- on the 'sick' plant. But when all is said and done, you are pretty close to harvest and yellowing is normal.
You should NOT be feeding any type of fish emulsion of blood product in flower!!! In fact, the fertilizer you are using is already very N-rich- more so that you would usually like to see.
I am most concerned with the sulfur deficiency showing on the plants. It leads me to think that your real problem is a lockout, most likely from pH problems, since I don't see any significant fert scorch on those plants.
My main question to you is how far along into flower are you? I ask because it looks like you are nearing the time to begin flushing anyway, and all these issues become pretty much moot at that point. If you are 6 weeks in, you need to be flushing right away because of all that extra Nitrogen you gave them with the blood. Otherwise you are going to get some harsh product, and that would be a shame, because the plants actually look pretty damn good.

[WildFire.ca]

your plants show signs of heat stress what temp are you plant at? I also don't see any burnt leaf tips, signs of the claw or overly green leaves. The number might be high but the plant seems ok with it. I am think you have a ph problem or lock out of some kind

[stinkyattic]

I see no evidence of heat stress. What are you looking at for that diagnosis?

[WildFire.ca]

the leaves curling up at the edges.

[stinkyattic]

I looked closely to see what you are looking at and the only thing I saw is simply normal from that angle viewing the serrations- Heat stress would be a lot more visible.

Curl at the edges only is associated with heat from a lamp too close, while general heat stress will also manifest as leaves 'canoeing' under, and I would expect those def symptoms to be much more pronounced.

[WildFire.ca]

I looked closely to see what you are looking at and the only thing I saw is simply normal from that angle viewing the serrations- Heat stress would be a lot more visible.

Curl at the edges only is associated with heat from a lamp too close, while general heat stress will also manifest as leaves 'canoeing' under, and I would expect those def symptoms to be much more pronounced.


Thats good to know, my understanding is/was that the tips curling are the first stages of heat stress and the canoeing is a more advanced stage.

[stinkyattic]

It's more like the difference between chronic (upside down canoe, plus a general sadness to the plant, if that makes sense- you'd know if you saw it- duller colors, increased symptoms of def, floppiness, BAD herms) and acute (edge curl up, often acompanied by pale or even white marks where the lights were way too intense, often the rest of the plant is the picture of health).

[WildFire.ca]

I talked to a buddy of mine and he says that the leaf curl like that is caused by mag deficiency. How close are the lights to the plants? I just want to figure this out as I get this problem some times.

[the image reaper]

here ya go: International Cannagraphic Magazine Forums - The Complete guide to Sick Plants,pH, and Pest troubles! (http://www.icmag.com/ic/showthread.php?t=11688)
that's an excellent guide ... :thumbsup:

[WildFire.ca]

...

[rottenfork]

hey there stinky im 7 weeks into flower think i better get flushing eh?

wildfire ive a 400w HPS and its about 800mm from the top of the plant temps are 27-29c

[WildFire.ca]

wildfire ive a 400w HPS and its about 800mm from the top of the plant temps are 27-29c[/QUOTE]

Well heat isn't the reason for the leaf curl. I sprayed mine with cal/mag yesterday we will see what that does.


At week 7 you only got one week left to fix problems. Looks like it will be good smoke enjoy.

[stinkyattic]

Yup, get flushing.
Your temps aren't outrageous. I run up to 80'F without any symptoms, and have been forced to go into the low 90s and saw no damage, just a slowing of growth.

[rottenfork]

just flushed, thanks for your help i let you know how they turn out:thumbsup: