Guide for Diagnosing Plant Problems

blackgolem

Well-Known Member
how wet is your soil? looks like a root problem mine started doing that. Do you smell a funny odor? if you do or don't if you can handle lifting and looking at the roots if brown i would gently trim them off. (not the leaves just yet) put back in slightly dry soil? and just mist the medium you put them pack in and wait to water then water down stem with less water. Of course i don't know much and I'm just guessing based on my experiences. Check some of the guides here on RIU hell I probably should look some more myself but trial and error is the only real teacher good luck and hope my response gave you some help.
 

Lyonsie

New Member
Thanks for the replies guys. I wish it was as simple as either of them. I will be checking the roots now though. Its wedding cake. They weren't cheap
 

cody.young11

Active Member
Does anyone know what the hell is going on here? The next two leaves not seen in this picture are about 5 cm long and both curled at the tips and all malformed as well. I planted two others at the same time and they are already on their 8th set of leaves and 3 times as big. Should i just start a new seed?20201020_142223.jpg
 
20210118_205757.jpg20210118_205747.jpgIm trying to figure out what is going on with these, i recently picked these up and after watering once this started happening. Leaves twisting and some spotting. I have well water and im thinking its a ph issue. What do ya think
 

manilahigh

New Member
Hi. I'am a first time grower here. I am from a tropical country, so controlling my grow room environment is pretty challenging. Im currently on my 4th week of Veg, and my plant is showing some signs of deficiency- I am not sure. Although it is very minimal, I just wanna get on top of it as soon as possible.

Currently, they are growing in 1 Gallon fabric pots and I plan on transplanting them this weekend. I use GenHydro for nutes and I used to do daily fertigation, but I am not doing every other day. They actually seems okay, except that one of my plants started having white wilting spots. Maybe 5-6 small ones, in different leaves. I have been doing LST as well as Mainlining. My Light Cycle temp is between 26c-29c with Humidity between 55%-65%, at night, Temp is at 21c-23c with around 35%-40% RH.

I also think that the same plant having white spots are showing signs of mildew, but I am not sure. What do you guys think?
 

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emanO

Member
plant has uneven coloured leaves,,some darker and lighter patches, not an uniform shade of green,,any thoughts?

plant is grown sun and cfl mix,,in soil and 2-3 weeks old,,the plant is growing well and strong , so hoping it will grow out of it. Or its something to nip in the bud ?
Thanks
 

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WakeBake

Member
Hi. I'am a first time grower here. I am from a tropical country, so controlling my grow room environment is pretty challenging. Im currently on my 4th week of Veg, and my plant is showing some signs of deficiency- I am not sure. Although it is very minimal, I just wanna get on top of it as soon as possible.

Currently, they are growing in 1 Gallon fabric pots and I plan on transplanting them this weekend. I use GenHydro for nutes and I used to do daily fertigation, but I am not doing every other day. They actually seems okay, except that one of my plants started having white wilting spots. Maybe 5-6 small ones, in different leaves. I have been doing LST as well as Mainlining. My Light Cycle temp is between 26c-29c with Humidity between 55%-65%, at night, Temp is at 21c-23c with around 35%-40% RH.

I also think that the same plant having white spots are showing signs of mildew, but I am not sure. What do you guys think?
I think white spots are mites. Look under the leaves, do you see red dots?? If so, they are mites and need to be treated. Thing that worked for me was neem oil foilar spray for 3 weeks twice a week. Continue the treatment for atleast a week after you think all mites are gone. This will ensure any eggs that hatch later are also killed.
 

Matteliquo

New Member
ciao a tutti ragazzi ho alcune piante nella mia grow box che non stanno sviluppando correttamente i loro germogli e non riesco a capire perché. se qualcuno potesse illuminarmi sul problema sarei infinitamente grato che questa è la mia configurazione: gorilla zkittlez della barney farm vaso da 6,5 litri tutto mescola il terreno Biobizz da 400 w hps a 40 cm alle piante biotab come fertilizzante aggiungi zucchero royale una volta alla settimana Premetto che nelle prime settimane di vita si trovavano in un clima molto freddo e cercavano irrigate con acqua altrettanto fredda e come se non bastasse non ho aggiustato il ph. nel video siamo al giorno 32 del passaggio 12/12 e alla fine del video inquadra un altro gorilla che sembra stia grazie mille a coloro che dedicano il loro tempo ad aiutarmi.
 

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Matteliquo

New Member
[QUOTE = "Matteliquo, post: 16252323, membro: 1063161"]
ciao a tutti ragazzi ho alcune piante nella mia grow box che non stanno sviluppando correttamente i loro germogli e non riesco a capire perché. se qualcuno potesse illuminarmi sul problema sarei infinitamente grato che questa è la mia configurazione: gorilla zkittlez della barney farm vaso da 6,5 litri tutto mescola il terreno Biobizz da 400 w hps a 40 cm alle piante biotab come fertilizzante aggiungi zucchero royale una volta alla settimana Premetto che nelle prime settimane di vita si trovavano in un clima molto freddo e cercavano irrigare con acqua altrettanto fredda e come se non bastasse non ho aggiustato il ph. nel video siamo al giorno 32 del passaggio 12/12 e alla fine del video inquadra un altro gorilla che sembra stia grazie mille a coloro che dedicano il loro tempo ad aiutarmi.
[/ CITAZIONE]
i am sorry but i can't upload the video only photo
 

TailsGrow

Member
Hello, my plants have been showing this deficiency that can be noticed in the video, practically all of them are like this.

Soil composition: Peat and pearlite + earthworm humus biobizz fertilizers + supplement with calmag (just a little bit)

ph runoff: 6.8 ppm runoff: 1500

 

Nixs

Well-Known Member
Hello, my plants have been showing this deficiency that can be noticed in the video, practically all of them are like this.

Soil composition: Peat and pearlite + earthworm humus biobizz fertilizers + supplement with calmag (just a little bit)

ph runoff: 6.8 ppm runoff: 1500

Most likely its too much potassium in the soil, you may try flushing with a lot of water and stop feeding.

Double check here.
 

TailsGrow

Member
Most likely its too much potassium in the soil, you may try flushing with a lot of water and stop feeding.

Double check here.
True, thanks for your reply, realy looks like potassium excess =(

But idk who i did it, just use a little of organic fert, i guess less than my other grow...but well
 

Bolo33

Member
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...
What would you say for this plant?it looks different from the others. Like shes sad or something . Im a newbie and just looking for help. Thank you
 

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