Is this diseased?

Grow Support
1

This plant has looked like this from about 2 weeks into flower. It was in an isolated DWC bucket. I found the air line twisted when I noticed this and fixed it, but is was receiving minimal air bubbles. this clearly stunted it’s growth.

After reading about these plants getting diseases that can harm/kill the consumers depending on what virus it is, I don’t want to take chances.

All the nutrients/PH were correct, the other 3 growing in this setup that didn’t have the air issue are doing just fine.

2

Pics or it didn’t happen.

Let’s get some more information:

image

A support ticket will help us help you. Can you please fill out a support ticket? Please include what type of water you are using (RO, distilled, tap.)

COPY/PASTE the below list into your forum post.

Answer these simple questions the best you can.

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NA (non-applicable)

• What strain, Seed bank, or bag seed

• Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF

Soil brand and type

• Vessels: Pots, Grow beds, Buckets, Troths

• Runoff pH

• Runoff PPM/TDS or EC

• Indoor or Outdoor

• Light system and wattage

• Temps; Day, Night

• Humidity; Day, Night

• Ventilation system; Yes, No, Size

• AC, Humidifier, De-humidifier,

• Co2; Yes, No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution

Always try to upload a clear picture of any issues you may have to allow the community to assist you. Pictures taken under natural or white lighting are by far the best.

Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us to help you in a more efficient manner.

3

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4

• What strain, Seed bank, or bag seed
*

Mephisto Genetics Double Grape

• Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
5 gallon DWC Bucket

• Indoor or Outdoor
Indoor

• Light system and wattage
ViparSpectra 240W

• Temps; Day, Night
78F,68F

• Humidity; Day, Night
50%,55-60%

• Ventilation system; Yes, No, Size
Yes, (2) 4" Ac infinity fans with carbon filters running on auto the controller.

• AC, Humidifier, De-humidifier,
Conditioned indoor, with humidifier.

• Co2; Yes, No
No

If growing Hydro some additional questions:

-DWC? RDWC? Autopots? Ebb and Flow? Other?
DWC
-Distance of liquid below net pot (DWC)
1 inch-4 inch
-Temperature of reservoir
unknown-Likely room temperature
-TDS of nutrient solution
800-1000PPM
-Amount of air to solution
I don’t know.

5

That all looks good, though I don’t see pH mentioned. I’ve seen plants that look like this, but never followed the threads to their conclusion.

Let’s let other DWC growers contribute, as I’m stumped.

6

Oops, sorry. I run the PH at 5.8. It tends to go up to about 6 naturally by the time I need to clean or refill the reservoir. I do a hard limit of 5.8-6.2 on the PH.

I fear the lack of air due to the twisted air line allowed it to become stagnant or something, followed by some sort of infection or virus? The other plants in the same environment, with the air exception, are doing phenomenal. I am worried if it is something that can spread across plants or anything like that.

7

There are very few “infections” with cannabis other than perhaps blight (but that is not it) or mold (which is possible, but unlikely when RH is in check.)

Here is a list of cannabis diseases, none of which seem to fit here. It may just be a strain or phenotype characteristic.

I don’t know for sure, but am throwing out ideas for consideration.

8

Try adjusting your rh down to about 40-45%. I know my plants started to look the exact same until I figured out that she liked low humidity.

Could be septoria as well, which can spread from plant to plant. Especially with extensive rain ( which isn’t it due to being indoors) but could also be from high humidity. Which yours seems normal but like I said I thought mine was normal also hanging around the 50-60%. And ended up with the same condition. Had to drop mine down real low to about 25- 35% while in veg, people thought I was crazy.

Like others have said it could be genetics. Could be older leaves dying off. Could be a factor of the air hose getting kinked and caused the stagnant water but that would have had to be an issue for sometime don’t think a week would be sufficient enough for it to become stagnant.

Try adjusting your night time temp to drop about 6 degrees rather than 10 could be pissing her off with fluctuating. I have mine about 80 during the day and 74-75 at night. Highly doubt that’s the issue though.

If you’re running multiple plants it could be that it’s not taking enough because ideally you should have at least 200-250 watts per plant. Lack of light can cause yellowing or bleaching of the leaves, leaf drop and changed the leaf color and shape and a few other problems that doesn’t seem to be what you’re going through.

9

Thank you, with yours looking this way, when you lowered the RH did it start to go back to normal or what should I look for to see if that is helping.

I can’t find anything on it either, all of the grows I look up with the same genetics don’t have anything like it either. I can’t find anything that looks like it for diseases or septoria so its odd. Of course I also don’t have any hits on words I search so I wouldn’t really know what I am looking for.

For the light, that is the light that is over that one single plant. I have (2) of the viparspectra 240W lights and (1) 100W mars and (1) 150W Viparspectra on the others. I check the PPFD usually twice a week to make sure it’s in check and make adjustments as needed as they grow.

To me it kind of looks like a super severe case of what they start to look like when they need more magnesium due to the LED’s. It’s the entire plant though, maybe a few new leaves here and there don’t have it but they will end up having it as they grow, from what I have noticed.

10

I read the article thank you. I agree It’s unlikely to be one of those issues.

11

I was in the flowering stage as well so I did not have enough time to see if it would bounce back but I did notice that the new leaves ended up not getting it. I’m sure it would but I’m pretty sure once the leaves have it they won’t repair themselves… It could also need cal-mag due to led lights.

If you’re doing or did do any pruning did you make sure to clean the equipment before and after ?

How long has she been in flower for ?

12

I did give it extra cal mag as well temporarily ( 3 werks) and didn’t see any change.

This one is about 13 weeks old. It’s been doing this since it started flowering, I thought it was a cal mag issue or something . She’s now ready to harvest but with the way it looks- it’s concerning.

How was it after curing?

13

I feel like it definitely could have ended up better if I never ran into the issue and I had the adequate lighting for it. But it did not turn out horrible. In my opinion it turned out better than my other plant that was healthy all the way through