Genetical problem or disease??

[rik78]

hey there

I have this porblem form some time now, at the biggining I thought that were genetical, but as the time goes by and it caming more leaves, I have start boring.

I check PH and EC, only water them when need it, grow in soil with organic ferts

Any idea what this can be?

 

[HankHanglow]

Is it a white powder? It's hard to see in the photo. It might be powdery mildew?

 

[Green81]

Looks like spider mites. Which hS cause a mosaic virus maybe.......

 

[smailer]

Yes,. looks like spydermites, and lack of P and Mg. but lack of nutrients may be cause of overwatering (because like for me overall photo of plant is look like it)

 

[rik78]

Is it a white powder? It's hard to see in the photo. It might be powdery mildew?

could be, but dont think so.. it could be some residue from Neen and tee

​

Looks like spider mites. Which hS cause a mosaic virus maybe.......

yes both things, for what I have benn looking, reading and talikng to people this is the most likely diagnostic: "Mosaic virus due to Spider mites"

Yes,. looks like spydermites, and lack of P and Mg. but lack of nutrients may be cause of overwatering (because like for me overall photo of plant is look like it)

I did water the plants 15min before the pixs were taken, as you can see with some drops on the leaves, but I dont think they are overwatered, I respect the wet-dry cycles and only water when need it
Personally dont think that the decoloration of the leaves is beacuse of a deficiency in elements, I mainly think so because the plant were repoted 8 days ago, when I switch them to florwering

 

[symbiote420]

What strain?? Looks like a severe Cal/Mg deficiency to me .....the mites don't help either! I seen root aphids cause that type of look to the plants before ....they can make your plants weak by attacking the roots in turn causing other pest and diseases to attack the plants like mites and PM.

 

[vince514]

almost looks like thrip damage on the leaves..silvery poop on the top sides of the leafs...if it were spider mites causing the leaf damage it would be more severe.....and not to mention you'd be able to see the bastard
whats your temps? rh? and ph you giving those girls...also whats the genetic your currently running....the inward curling on the first pic really looks like the onset of cal/mag def's...ive had plants that had genetic defects that looked like that...the first time i saw it i just scrapped the plant..but the second time i saw that i kept her it was a cherry bomb plant and she finished up fine..(not as good as others but she finished none the less)...
Whats your feeding regime?????
were the plants under different lighting conditions 8 days age before tp'ing?....the sudden shock of a rough transplant coupled with different more intense light spectrum may have triggered something in the plant.....

please let us know ..im curious about this one...

 

[rik78]

thanks Symbiote and Vince for came by,

for what I been reading the whole day is that there is a debate if this is really a gentic problem or it is really the Mosais virus, this due to the fact that only afect some plants in the room, not all.

If it is a genetic problem will be in the demand of high doses of Cal and Mag and a diet rich in those elements will solve the problem.

After this, amalazing my case I tent to think that it is a Cal and Mag deficiency has I been watering with rain water for the last couple of weeks.

Ph of 6.8
EC 0.6, low, I know but read below why
temps are high, 22C lights offs and 28-29C lights on
humidity low, 30% -50%

8 days ago I change from 0.5L container to 3.7L, with a hot soil, reading was 2.1, so that is why I decided to water withh such a los EC

genetic is cheese x lavander

I hope I have anwser all the questions, if the are more fire away!

 

[vince514]

thanks Symbiote and Vince for came by,

for what I been reading the whole day is that there is a debate if this is really a gentic problem or it is really the Mosais virus, this due to the fact that only afect some plants in the room, not all.

If it is a genetic problem will be in the demand of high doses of Cal and Mag and a diet rich in those elements will solve the problem.

After this, amalazing my case I tent to think that it is a Cal and Mag deficiency has I been watering with rain water for the last couple of weeks.

Ph of 6.8
EC 0.6, low, I know but read below why
temps are high, 22C lights offs and 28-29C lights on
humidity low, 30% -50%

8 days ago I change from 0.5L container to 3.7L, with a hot soil, reading was 2.1, so that is why I decided to water withh such a los EC

genetic is cheese x lavander

I hope I have anwser all the questions, if the are more fire away!

well rik a ph of 6.8 is rather high ..the best ph range for mj is between 6.0 and 6.5 IMHO...i personally use a ph of 6.3 ....
29c is kinda hot the plants are transpiring rather quickly at those temps....if your able try to lower your temps it will help...also try to get your rh up to 40-50 constant and the'll be more comfortable
the soil e.c is also rather high when u mention it...u said u gave a "hot" soil mix what exactly is this "hot" mix u speak of?...im no organic grower in my indoor but i do know if u dont already have a premixed organic mix u have to be careful when mixing individual organic fertilizers to be sure to mix in at correct ratios because if its too hot u might have problems......

so if you get all your factors dialed in correctly and your plants still look unhappy then maybe it might possibly be a genetic defect of phenotypical expression..dj short lines produce mutant plants .....and you are also growing a lavender hybrid so maybe its possible .....im no expert but hope this helped a bit...oh btw here's a link that always helps me when im not sure about something with my plant(s)

https://www.icmag.com/ic/showthread.php?t=11688

good luck

 

[vince514]

this link is to a tobacco mosaic virus (tmv) in cannabis thread.....

https://www.icmag.com/ic/showthread.php?t=177527

 

[trichrider]

i've seen thrips damage similar to that.
not mosaic virus.
got a loupe?

check underside of leaf for tiny black spots which would indicate thrips.

good luck broski!

 

[somerandom]

When i looked at the pics, I thought it was thrips as well. You should be able to see them moving with the naked eye and they leave silver streaks in the plant material. At least they did on mine when i had them.

 

[somerandom]

The thrips i had were yellow and were on top of the leaf.

 

[RetroGrow]

It looks like you have Broad Mites, not TMV. You need a scope of 100X power to see the eggs under the leaves. Don't waste your time reading the TMV thread. Almost all suspected cases of "TMV" are really broad mites.

 

[knubs]

It looks like you have Broad Mites, not TMV. You need a scope of 100X power to see the eggs under the leaves. Don't waste your time reading the TMV thread. Almost all suspected cases of "TMV" are really broad mites.

i don't know. if this were broad mites the leaves would have been curling up by now. broad mites do make the leaf curve to the side sometimes, but not like that. also if it were broad mites all of his room would be ruined by now and it wouldn't just be some stuff showing symptoms (unless powerful miticides are being used).

i had the mosaic virus a few years ago and it was a bizarre experience to see it and learn about it in person. everyone told me i had broad mites, but the plant was growing fine (very brittle stems though) and it wasn't spreading. other than the mutated leaves (about 25%) the plants looked beautiful and healthy. i never got curled leaves like with broad mites.
eventually though once i got root aphids i saw the virus spread through a couple strains as the root aphids spread. i tore down my grow and sterilized and restarted.
when i restarted i got clean cuts from an old source and all was great. then months later i got broad mites on some clones from a shop. the broad mite damage didnt look like the TMV much at all. they have some similarities, but from the pictures posted i'd say it's not broad mites.
it looks like it is a strain of the TMV, but you may have bugs too.
i'd throw all suspicious plants away...

 

[qupee]

Check for root aphids. Few years back I had a nasty infestation and a couple pheno's showed that weird deformed leaf thing (half the leaf doesn't really develop). Another pheno got totally incurable powdery mildew. All had crazy phantom deficiencies. Took me 2 full cycles to figure out what the hell the problem was and another two cycles to eradicate them. Ugh.

 

[RetroGrow]

It looks like some pest. Can't say from pictures only. Doubt very much it's TMV, which is usually misdiagnosed, and everyone who has sent in samples to test for TMV have come back negative, as far as I know. Thrips definitely possible, but should be able to see them & spider mites without problems.
BMs, on the other hand are microscopic. Root aphids possible. Pull a plant from it's pot and examine roots.

 

[somerandom]

Looks like a multitude of problems. You can click on the pictures (goes to photobucket) zoom in, and then zoom in again, I swear i can pick out a few thrips (one to the right of his thumb) but there is so much crud on the leafs it's really hard to tell

 

[papaduc]

Have you properly checked the underside of the leaves?

Remove a few of the damaged leaves and take your time and check them very closely under normal light.

 

[sunset limited]

:

took the words right out of my mouth.

get a 40x loupe on amazon for $4. look at the underside of your leaves. post pics of the underside of your leaves, as close up as you can get with your camera without loosing sharp focus. that will be very telling.

without seeing that though, i'd say 60% you've got some pest. COULD be borg (aka spider mites), but usually you get pinpoint spots, not the splotches you're presenting with. could be thrips too. again though, check the underside. i'd say almost certainly that you don't have braod mites, in spite of retro's eagerness to blame any abnormal growth on those vicious little invisible bastards (much respect RG—just saying though).

if there's nothing crawling on your leaves, check your medium. chief culprits are root aphids and gnat larvae. i won't rob you of the fun of surfing the forum to find out how to ID one vs. another.

i did say 60% on pests, right? 6.8pH and/or overwatering will give you those gnarled, stunted tops and what looks like an N or Ca/Mg issue in a heartbeat too. if it's that, it's an easy fix (fingers crossed).

as for TMV, it's basically a joke, and i wouldn't waste a second thinking about it if i were you. guys were blaming mosaic virus for any number of other issues that they couldn't ID—most notably, broad mites, before any of us had even heard of BM. today though, i don't know too many growers worth a damn who would attribute their problems to TMV with a straight face. if you take the time to read the TMV thread—which is no longer a sticky, incidentally—you will see what i mean. if i remember correctly, there's not a single person who ever posted that they had a positive, confirmed case of TMV, although a lot of guys did drop $40 on the immunoassay strips (myself among them). as the thread goes on, guys get a handle on root aphids and broad mites and a couple other things and then people just stopped posting there.

hope that helps some. let us know.