Spots on leaves during flowriny

[Brizzy420]

New grower here! My durban autos are on week 6 of flowering and was showing spots a week er so ago so I fed cal mag and iron and they aren’t getting any better. Is this a sign I should begin flushing? I really hope it’s not fungus but it doesn’t look like it under a scope.

 

[Ezdeezy89]

Looks like a deficiency. Don't know the details about your grow but it would help to know.

Burnt tips, may be nute burn lowering pH and causing a lockout. Flush isn't gonna hurt if you can. Check the pH.

What type of setup are you running? There's not much info to go by.

 

[Brizzy420]

Ezdeezy89

Iv been ph my water to 6.6. I too feed with, 444 and 288 and worm castings. Should I not be using cal mag for calcium since I’m too feeding organic? Iv been told both it’s fine and it’s not fine. Fox farm soil. I give them molasses tea every once in a while. All my other plants seem to be fine just the one in flower.

Here’s my other plants.

 

[GNick55]

looks like calcium deficiency, no point in trying to fix..
plants nutrient needs change through out flower, depending on your set up you may have to apply up to a week early to be ready when needed..

 

[Ezdeezy89]

New grower here! My durban autos are on week 6 of flowering and was showing spots a week er so ago so I fed cal mag and iron and they aren’t getting any better. Is this a sign I should begin flushing? I really hope it’s not fungus but it doesn’t look like it under a scope.

You need to test the rootzone ph. You can buy a meter to test pH, but that can get a lil expensive. You can do a slurry test too find pH as well.

Honestly though, I'd just do a flush regardless, as there is an obvious issue, and see what the pH is coming out. My very first grow looked like that, I did the tests and found that my pH was way low and my ppm was almost double what I was feeding.

 

[Brizzy420]

looks like calcium deficiency, no point in trying to fix..
plants nutrient needs change through out flower, depending on your set up you may have to apply up to a week early to be ready when needed..View attachment 1306583

Thats kind of what i was thinking. I tried to correct a week ago and its only gotten worse so i was thinking one last compost tea and a flush, or just a flush and learn from it. Doing a little more research and help from a growmie, seems changing my earth worm castings from red wiggler castings too african earthworm castings and upping the feeding. African earworms are suppose to be higher in calcium.

 

[Ezdeezy89]

I'd like to add that I'm also in coco and flushing is a very easy way for me to just restart and not have to chase certain problems, especially late into flower where every day matters.

 

[Brizzy420]

You need to test the rootzone ph. You can buy a meter to test pH, but that can get a lil expensive. You can do a slurry test too find pH as well.

Honestly though, I'd just do a flush regardless, as there is an obvious issue, and see what the pH is coming out. My very first grow looked like that, I did the tests and found that my pH was way low and my ppm was almost double what I was feeding.

i have a bluelab and a cheapo amazon pen i constantly check both making sure their calibrated and usually do the liquid general hydroponics too just to get a good eye for the color incase of a pinch... but only have tested water going in not the run off.. word ill do that in the morning and get back to you on that. Might need some more info on PPM.

 

[Brizzy420]

I'd like to add that I'm also in coco and flushing is a very easy way for me to just restart and not have to chase certain problems, especially late into flower where every day matters.

You need to test the rootzone ph. You can buy a meter to test pH, but that can get a lil expensive. You can do a slurry test too find pH as well.

Honestly though, I'd just do a flush regardless, as there is an obvious issue, and see what the pH is coming out. My very first grow looked like that, I did the tests and found that my pH was way low and my ppm was almost double what I was feeding.

how did your first grow turn out with the deficency? will she stop gaining bud mass? other than the spots on the leaves i feel like shes gunna be some good bud! dense and frosty just really hope it didnt stunt her.

 

[Ezdeezy89]

how did your first grow turn out with the deficency? will she stop gaining bud mass? other than the spots on the leaves i feel like shes gunna be some good bud! dense and frosty just really hope it didnt stunt her.

It wasn't too bad, just didn't come out very well but I was closing in on week 8 of an 8 week strain so it was already too late for me. Whatever you're growing looks like it's 9-10 week strain. You'll prob be good just do a flush ASAP and do it until you're getting the readings you want. I typically go quarter strength on nutes and flush 3x my volume, typically towards the last half of lights on. Next morning it's back to a higher feed. Just test the runoff if you flush until you get to your desired levels.