Guide for Diagnosing Plant Problems

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greenforce

Active Member
Hey growers i have one sick plant of 4 in my growroom.Dutch Passion ThinkDifferent has Yellow spots appear on 3-4 top leveas. Plant is in 35 day and in full flower for 6-7 days. Last feeding 0.5ml/l Piranha,Tarantula 1ml/l Iguana juice bloom 1ml/ Big Bud. Im thinking about ph problems but then my runoff is 6.4-6.6. Temp 24-27 rh 40% Gave Cal/mag extra last monday plant is overall healthy and bud formation i good for this stage.Yesterday i fed 4.5 l till runoff apeared 0.7 ml Big bud 1ml Iguana Juice Bloom. Interesting thing is that this plant i 10 day ahead from other 2td that jut now starts to flower. Problems started when i started to give her bloom nutes.
Any advice is welcomed.
 

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Crippykeeper

Crippykeeper

Well-Known Member
Tim1987 said:
I get lockout in my coco like this when my ph is high. I get it from too much calcium. Which inhibits the absorption of nitrogen aswell, which would explain the "rams horns", and crows foot. Good luck.
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Thanks I never pin pointed the exact issue on that run I chocked it up to pesticides I had sprayed but I never checked my soils ph. Thanks for the tip.
 
EveryBlueMoon

EveryBlueMoon

Active Member
Hey guys I have a really strange issue with my plants.. Zero growth over the last 3 days... I mean none at all... Just 4 days ago they were aggressively Vegging... They're basically frozen.. I have grown for years and never seen anything like it... The day they stopped growing was the exact same day that I did a nutrient swap and trimmed. I literally only cut Four Leaves off of plants just above and below their sixth node. Each one is in a DWC.. PH 5.8 ppm 600 including 130 from the tap. I'm at a loss... SOMEBODY PLEASE HELP... These are my first Glueberry OG that have ever done this...
 
Og grumble

Og grumble

Well-Known Member
Any help is greatly appreciated. Almost positive this is nute burn tho. Just bad on this leaf for some reason. A few other leaves have the signature nute burn on the very tip but this one has it bad. I think its spreading too. Should i cut it off? Im using kind soil (hot soil) with no added nutes. This happened a few days after transplanting to the hot soil which is why im sure its nute burn. Sorry for my shitty camera. The first pic is the bad leaf the others are just the tips.
 

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Og grumble

Og grumble

Well-Known Member
Tim1987 said:
Just cut back your nutes
Flush it, and pray.
You'll be golden mate.
Let us all know how it goes.
Good luck
Tim
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Thanks for the good luck wishes lol. Im not using nutes tho its in super soil. Pretty sure the soil is just too hot but the people at kind soil (the company i bought the soil from) say that'll happen if you transplant into the hot soil too early and they will grow up and be fine. So im gonna ride it out and hope they are right lol. Just wondering if i should cut that leaf off really.
 
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Tim1987

Well-Known Member
Og grumble said:
Thanks for the good luck wishes lol. Im not using nutes tho its in super soil. Pretty sure the soil is just too hot but the people at kind soil (the company i bought the soil from) say that'll happen if you transplant into the hot soil too early and they will grow up and be fine. So im gonna ride it out and hope they are right lol. Just wondering if i should cut that leaf off really.
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Good luck brotha
Think you're on the money!
Much love
Tim
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
i'd give that a little flush, maybe 3 gallons of ph'ed water, then keep an eye on it, the roots ought to recover pretty quickly, but if it doesn't stop spreading, you may want to do it again. once the roots heal up, the whole plant ought to look better pretty soon
 
Og grumble

Og grumble

Well-Known Member
Im thinking this is a ph issue. Im using kind soil (hot soil) its an organic super soil with all the nutrients my plants will ever need. So i know this isnt a lack of nutrients. Lockout possibly but the ph of my water going in is 6.5. You aren't supposed to water to runoff with this soil so i cant really test the runoff ph. Any ideas? One of the plants (critical) is barely effected, the other plant of the same strain looks like shes about to die. The cookies plant has some of the leaf issues on the lower growth and the bottom half of the plant is droopy. Top half looks healthy tho.
 

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Tim1987

Well-Known Member
Id get a ph stake (my favourite, they sell ones for ppm as well). A soil testing kit. Or, you can mix a sample with distilled water, to test with your probe.
You'll be able to find, the amount of distilled water, to soil on google. You can check ppm, this way too.
If you take samples, of soil. Dig a little deep to get your sample. Get a sample from the bottom of your pot too, and compare it, to the top sample.
IMHO, judging by the bottom pick. You may be better off transplanting, into something gentle, with lots of aeration, and drainage. Then really watering it in, with plain water. The largest plant, is pretty close to a new pot, as is.
Just check all your soil first. Something's going wrong. You need a good idea of what first.
Iv'e found in pots, its usually the bottom, thats troublesome. Which may be likely, if you havnt been getting runoff. Because sediment will, wash down and build at the bottom. It could be high ph, fom lime etc. It could be low ph, from fertz or manures, or rot. Ph could be fine, and its just hot soil. You need to have a good idea to act on.
Good luck
Best wishes.
I hope you find your problem.
 
Og grumble

Og grumble

Well-Known Member
Tim1987 said:
Id get a ph stake (my favourite, they sell ones for ppm as well). A soil testing kit. Or, you can mix a sample with distilled water, to test with your probe.
You'll be able to find, the amount of distilled water, to soil on google. You can check ppm, this way too.
If you take samples, of soil. Dig a little deep to get your sample. Get a sample from the bottom of your pot too, and compare it, to the top sample.
IMHO, judging by the bottom pick. You may be better off transplanting, into something gentle, with lots of aeration, and drainage. Then really watering it in, with plain water. The largest plant, is pretty close to a new pot, as is.
Just check all your soil first. Something's going wrong. You need a good idea of what first.
Iv'e found in pots, its usually the bottom, thats troublesome. Which may be likely, if you havnt been getting runoff. Because sediment will, wash down and build at the bottom. It could be high ph, fom lime etc. It could be low ph, from fertz or manures, or rot. Ph could be fine, and its just hot soil. You need to have a good idea to act on.
Good luck
Best wishes.
I hope you find your problem.
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I have one of the 3 way soil probes that test ph and moisture and light but i was under the impression that those didnt really work for ph and people mostly just use them for moisture. So i didnt even try to get a ph reading with it. I think ill get a soil test kit and dig some of the soil out. Thanks for always jumping in to help tim. I'd burn a fatty with you if i could haha
 
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Tim1987

Well-Known Member
Og grumble said:
I have one of the 3 way soil probes that test ph and moisture and light but i was under the impression that those didnt really work for ph and people mostly just use them for moisture. So i didnt even try to get a ph reading with it. I think ill get a soil test kit and dig some of the soil out. Thanks for always jumping in to help tim. I'd burn a fatty with you if i could haha
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No worries man.
They're pretty handy tools. They can just be a little unreliable, so i buy 2, and check their accuracy. Tbh, i havn't bought many faulty ones. But i still always check.
Good luck.
I'll burn a fat one for you, give you Mary Jane's blessings. :bigjoint:
Thanks for the kind words,
Best wishes
Keep us all updated.
 
Og grumble

Og grumble

Well-Known Member
Tim1987 said:
No worries man.
They're pretty handy tools. They can just be a little unreliable, so i buy 2, and check their accuracy. Tbh, i havn't bought many faulty ones. But i still always check.
Good luck.
I'll burn a fat one for you, give you Mary Jane's blessings. :bigjoint:
Thanks for the kind words,
Best wishes
Keep us all updated.
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Thanks man hopefully the good vibes make it over here and i figure this shit out lol. Will definitely keep you updated.
 
P

Power Cannabis Seeds

Member
shenagen said:
I came across this neat little list that can probably help a lot of people out. If you like it check my post in the General area...I need some help!

Quick Deficiency Guide

Nitrogen: Entire plant is light green in color; lower leaves are yellow; growth is stunted....

Phosphorous: Entire plant is bluish-green, often developing a red or purpleish cast; lower leaves may be yellow, drying to a greenish-brown to black color; growth may be stunted...

Potassium: Leaves have a papery appearance; dead areas along the edges of leaves; growth is stunted...

Magnesium: Lower leaves turn yellow along the tips and margin and between the veins; the lower leaves wilt...

Calcium: Young stems and new leaves die...

Zinc: Leaf tissue between the veins is lighter in color; yellowed; papery in appearance...

Iron: Leaf tissue appears yellow, while the veins remain green...

Copper: Leaf edges appear dark green or blue; leaf edges curl upward; young leaves permanently wilt...

Sulfur: Young leaves turn pale green, while the older leaves remain green; plant is stunted and spindly...

Mananese: Growth is stunted; lower leaves have a checkered pattern of yellow and green...

Molybdenum: Leaves are stunted, pale green, and malformed...

Boron: Young leaves are scorched at tips and margins...
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Hello Shenagen,

We are power cannabis seeds - online seedbanks. Your post is quite informative and so is our website, regarding all information related to cannabis seeds. You can also buy the marijuana from us online.

Nice post.

Happy growing!
 
Grow for fun only

Grow for fun only

Well-Known Member
Zoom in to see them better
;)
96 days from clones
48 days into flower
Unknown strain kush genetics
2x600 mars hydro

Cant believe what i got is soo beautiful

Hope u guys like them almost time to flush to only add water until they ready to harvest thanks to all the one that gave me advice
:)good vibes only
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