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White spots/no growth

UrbZ

UrbZ

New member
So ive had some issues with white spots on my plants. I've been updating my journal with the issues bit now it seems to be progressing.

3 days ago gave them a full lineup of nutes did not help.
7 days ago they were given a heavy 16 nitrogen foliar boost, did not help.
2 days ago they were giving seaweed extract foliar boost no help.
Today they were ready to feed again. I just fed with 1/8 teaspoon of raw nitrogen and 3 ml of cal/mag per gallon.

Feeding today.
All 3 plants 6.2 pH in
All 3 plants 6.8 pH out

At first I thought bleaching so now my lights are 36 inches above canopy. Exactly manufacturers recommendation. 8 inches higher than where they started.

And now since last feeding there has been no new growth like none what so ever.

Lights on temp 77.5°F
Lights off temp 72.5°F
Oscillating fan wiggling them 24/7
RH at a steady 56-61% all times
 
No growth to me may just be the plants rooting into the larger pot.

Starting to wonder if coloring is genetics.

​​​​​​​Other than that I am lost.
 

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It looks like thrip damage but then doesnt.....not silvery like snail trails, but kinda same patterns they create.
 
I have a mature plant right next to these 3. It is showing no symptoms what so ever. I know its not mold for the same reason.

Would I be right in thinking that if all 3 seedlings have it but not the adult plant that I can rule out mildew/pests.

If they can jump from one seedling to another why wouldnt they be on the mature plant is my thought process. Same with mildew the adult is bushier and has leaves rubbing and touching but no signs. That would get mildew before the seedlings I would think.
 
I'm no one, to absolutely diagnose, a health problem or genetic trait! But if this helps out in any way, I think if there is plenty of good air circulation, like you said, mold chances would drop. I got hit by thrips 1 or 2 wks before witch to 12/12. Treated with insecticide soaps. They never went away completely. New growth halted at one point until it produced resin. Thrips couldn't get past it lol. They would damage what they could, really no harm. The other clones i had in veg w the this plant before flower, got decimated. Anyway, they leave markings on the leaves that look your pics, but yours aren't a silver color like mine were. Try an insecticide and see if it works. Then you could rule that one out if it doesn't. Feeding a hurt plant can make a sick plant sicker. Stick w just water til you get it figured out. Good luck bud
 
Thanks for the assistance. Last night hit them with a foliar stop spray for mold/mites. I also put a layer of diatomaceous earth down. Next watering I am going to do a spinosad root feeding. I checked everywhere with a scope and saw no bugs anywhere. So all this is hopefully just preventative measures. But as for the issue its still persisting even after the huge dose of Nit.

TBH I am lost. I dont know what else to do. Im about to just throw these in the corner and germ. some new seeds. I cannot get it under control, nor find any real help on whats happening....
 
Could this damage have been done from a little over watering at a young age? had a friend say that he had a plant show symptoms like this before. It was one that he over watered. Also the two that are growing a little bit better have almost rid themselves of all the whiteness but the runt is still showing it pretty heavy.
 
Hmmm....I honestly don't know. Overwatering can show as a bunch of different deficiencies. If the runt isn't improving under all the same treatments as the others and getting worse.....is there ANYTHING its getting more of or not enough than the other 2 that bounced back?
 
Everything is the same except I used more perlite in the soil mix the runt is in. Other than that nothing. Its pretty messed up shes the happiest of the 3 too but the sickest looking. I have a grow journal going too I updated everything there yesterday she was so happy her leaves were almost praying. As of now im not going to consider her sick any more. Just special....
 
Thank you for your help and imput as well. Its nice to be able to hit stuff from all angles when in need.
 
I'm in a soil blend. Its coco, perlite, sphagnum and soil. I add about an extra 30% of perlite to the mix as well.
 
UrbZ, there is a couple things that will slow a plants growth, transplanting to a larger pot, over/underwatering, and Ph. It's really sounds like you have most of it figured out, I would like to add that my thoughts would lean to Ph, you are running off at 6.8 which is fine for a soil grow but with all you have amended with the Coco, perlite, and sphagnum your plant might be have a tough time with 6.8ph. After your repot if there is no improvement or its starting to get worse move your runoff to 6. To 6.3 Ph and see if that helps.
One of the first signs that the plant is not happy with its ph is, slow to uptake water followed but little to no growth and then deficiency looking symptoms.
UrbZ I hope this helps and good luck.
 
I will try that next water. Its coming up tomorrow. So what pH range in do you think I'm looking for abouts to drop that much I've been doing 6 - 6.2 should i go as low as 5 - 5.2?
 
Hey Urbz, you don't want to ever adjust your ph out of range of what it's supposed to be, for your plants to use,
Unless your doing one of those super flushes, where you lower it fast an quick. In more or less 1-2 flushes.
In soil an coco 5.5 -5.6 is about as low as you want to add, maybe a little higher in soil
 
Should I drop to the bottom of the range and water at 5.8 then? Thats only about .4 of a drop. It should drop me to about 6.4 or 6.5 run off.
 
Yeah, that should be fine ,it's still gone take a while to get your soil ph a little lower, but that's one of the good things about soil, lots of buffering going on to keep it where it needs to be, it ain't gone stay the same no how.
 
Daas69 is right, this is not a dire Last Chance emergency. Just lower it and adjust as needed, I think you are going to find 6.3 your run off number ( good spot for coco/ soilless medium, and is still in the acceptable soil range).
 
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