Leaf Diagnosis - What is leaching chlorophyll from this plant?

Holylander

Holylander

Well-Known Member
IMG_2161.JPG
Hi, one of my plants is showing color loss in leaves, while the others are not. They are all appx 12-14 inches from a 600 HPS. Growing in soil/peat/coco/perlite.

This plant also drew whiteflies to it 2 weeks ago, I killed them manually, and removed any lower leaves with eggs and no more bugs. There's no nutrient burn on any of the plants. None of the plants are overwatered. Most of the mid to upper leaves on this plant are showing this discoloration.

If anyone has seen this type of mottled leaf losing chlorophyll before (I have not) I'd appreciate any insight as to the cause. Thank you!

IMG_2162.JPG
 
Looks more like calcium to me.

People say broad mites when they see the leaves hooking like one of yours is.


IMO the hook is also attributed to calcium as too is the pale yellow starting from the tip of the fan leaf.



J
 
jondamon said:
Looks more like calcium to me.

People say broad mites when they see the leaves hooking like one of yours is.


IMO the hook is also attributed to calcium as too is the pale yellow starting from the tip of the fan leaf.



J
Click to expand...


I will go read up on calcium now too. What I have noticed is discoloration on only one side of a leaf (you can see that in some above too). The tip hooking might be heat related, I hope it's not bugs. What I have not seen is cupping up/canoeing which is from what I understood a sign from heat stress but also a sign of the broad mites. Only some of my leaf edges in those photos above are slightly edged up, I have never seen any full canoeing.

I appreciate these replies. TY
 
Holylander said:
I've seen pictures of leaves with tobacco mosaic virus which look identical to these :/
Click to expand...


I've seen Those pictures too.

However try and find a case study that's ever tested positive for TMV.

There are plenty that test negative to read but none that show positive.

Some believe TMV is not even transferable to MJ.

I get and currently do have a plant that has a single hooked leaf. It's also showing Ca def in pretty much exactly the same way yours is.

I'm currently correcting it with mono Ca added to every feed.

I believe the "hook" is just another symptom.

Some strains show such discolouration and hooking as part of their genetic traits.



J
 
I'll try adding calcium. I'm not a scientist but these mosaic viruses and there are many infect all sorts of plants incl tomato, cucumber, grape etc etc.. It's not a myth. These viruses exist and they affect MJ too. I hope neither of us has this or encounters it.
 
All upper and most mid leaves including any smaller news ones are now leaching chlorophyll and many of the leaves are hooking as above, I never saw a deficiency spreads like this so quickly. leaves exposed to any light even way down starts leaching. In short order this plant will not be able to photosynthesize so I doubt this one will make it.
 
Holylander said:
I'll try adding calcium. I'm not a scientist but these mosaic viruses and there are many infect all sorts of plants incl tomato, cucumber, grape etc etc.. It's not a myth. These viruses exist and they affect MJ too. I hope neither of us has this or encounters it.
Click to expand...


I wasn't saying that mosaic virus is a myth.

There are various mosaic virus' that infect other species.

However I still haven't found a single case study online that came back positive with MJ.


Unless you can enlighten me with a link.


IMO add a calcium source.

Watch the progression stop.



J
 
jondamon said:
I wasn't saying that mosaic virus is a myth.

There are various mosaic virus' that infect other species.

However I still haven't found a single case study online that came back positive with MJ.


Unless you can enlighten me with a link.


IMO add a calcium source.

Watch the progression stop.



J
Click to expand...
I can't give any case studies I don't work in a lab sadly, but I have seen 1/2 a dozen links online which look exactly like my plant and are all about mosaic viruses which is bad news for my plant.
https://www.rollitup.org/t/rough-and-patchy.846197/
https://www.thcfarmer.com/community/threads/tobacco-mosaic-virus.52836/

I will add calcium and try of course.


As for broad mites, I appreciate the suggestion Diabolical and this is a common place to look when no other reasons seem apparent. I started looking for bugs/eggs but I have not seen any yet using my small scope. I'll check more tomorrow and keep at it though none of my leaves have the weird wrap over itself leaf deformations, or sheens, or stunts, or any leaf damage at all aside from loss of chlorophyll.
 
In both threads for broad mites and threads for mosaic viruses I have read people have given the plant aspirin. I don't have any but will pick some up and try that too.
 
Holylander said:
I can't give any case studies I don't work in a lab sadly, but I have seen 1/2 a dozen links online which look exactly like my plant and are all about mosaic viruses which is bad news for my plant.
https://www.rollitup.org/t/rough-and-patchy.846197/
https://www.thcfarmer.com/community/threads/tobacco-mosaic-virus.52836/

I will add calcium and try of course.


As for broad mites, I appreciate the suggestion Diabolical and this is a common place to look when no other reasons seem apparent. I started looking for bugs/eggs but I have not seen any yet using my small scope. I'll check more tomorrow and keep at it though none of my leaves have the weird wrap over itself leaf deformations, or sheens, or stunts, or any leaf damage at all aside from loss of chlorophyll.
Click to expand...


I've seen countless threads myself about TMV and cannabis.

Like I said it's also a genetic trait in some crosses.

I find that DINAFEM CRITICAL+ carries the trait and it with extra calcium being given to the plants that exhibit the trait that the issue slows and stops.

I currently have 2 critical+ from seed currently showing similar leaf patterns. I've increased my Ca intake and it's stopped any progression.

I also have an HSO blue dream touching the critical+ plants and it isn't exhibiting any symptoms, if in fact it was TMV then surely the plants touching would have caused the blue dream to get it too???



J
 
jondamon said:
I've seen countless threads myself about TMV and cannabis.

Like I said it's also a genetic trait in some crosses.

I find that DINAFEM CRITICAL+ carries the trait and it with extra calcium being given to the plants that exhibit the trait that the issue slows and stops.

I currently have 2 critical+ from seed currently showing similar leaf patterns. I've increased my Ca intake and it's stopped any progression.

I also have an HSO blue dream touching the critical+ plants and it isn't exhibiting any symptoms, if in fact it was TMV then surely the plants touching would have caused the blue dream to get it too???



J
Click to expand...

Listen there's no doubt that some of the CHEMD stuff has a similar trait, I've seen them online, but it's usually a spoke of a leaf on a few leaves.. My whole plant is leaching out now like this. Anything that sees light is showing across the whole leaves including new growth. Also my other plants are the same seed, only this one has this thankfully so I'd love it if it is just genetics trust me! I would never imply your plants have a virus.. I'm only looking at realistically what I can see and try to root out cause on what's happening here.
 
You must log in or register to reply here.

Similar threads

F
Concerns over possible leaf issues.
Replies
4
Views
650
Figaro420
F
R
One plant of five showing leaf problems
Replies
13
Views
1K
OneMoreRip
OneMoreRip
D
Am I underfeeding this plant?
Replies
3
Views
511
hotrodharley
hotrodharley
BOBBYBLUEHAZE
GSC Auto Lower Leaf Discoloration/Decay Progressing to Upper Leaves
Replies
5
Views
422
Dank Bongula
Dank Bongula
midgesmith
Leaf Yellowing and Crisping Problems... Microgrow Royal Dwarf and Green-O-Matic
Replies
0
Views
809
midgesmith
midgesmith
Back
Top