Strange Spots

Guys,

I Have this young one that is showing this odd patch of brown covering most of the leaf. It just started but is only effecting one area of the plant not the new branches.

Here some pics tell me what you think.

they are being watered with GH Flora Grow 3X a day (drip)
Ph is around 6.5
no other plants have this happening.


Let me know
Thanks

Anyone out there know what this could be?

Now i have 2 more leaves with the same problem, could this be a disease? the original leaves are yellowing and look like nut burn, the tip is all dried up.

I have them on weak strength nuts and all others are fine.

Could it be stress of some sort?

the PH is 6.0, they are in rock wool and the plant otherwise looks fine.

I think you will need clearer pics, I can't really see the spots.

Hello friends, this is my very first post ever and am very excited to be a part of the club now!! OK so i have a similar issue. Ive been doing some research and it looks like people are resorting to magnesium deficiency. I have six northern lights femenized babies about a week old. Of the six, only one seems to be showing signs that are not ordinary. They already all have multiple leaves. I am growing hydroponically in mistponics sort of home made set up. Nutes are around 350 ppm and ph is between 5.5 and 5.9 roughly. They are growing out of rockwool on top of expanded clay pebbles as the medium. The problem with the one northern lights femenized are an appearance of brownish small circular spotting starting from the plant tip and moving in. However the spotting is occurring from the lower two fan leaves (fan leaves are under development as its only a week old) and i am afraid this will progress upwards. I wanted to know if this is due to a disease a virus or simply a ph imbalance or magnesium deficiency. I do not want this to spread to other plants. Thanks for reading and hope to get some good feedback.

there is no yellowing of the leaves however but this brownish spotting looks like maybe a disease? Can someone enlighten me?!

tarrows said:

Guys,

I Have this young one that is showing this odd patch of brown covering most of the leaf. It just started but is only effecting one area of the plant not the new branches.

Here some pics tell me what you think.

they are being watered with GH Flora Grow 3X a day (drip)
Ph is around 6.5
no other plants have this happening.


Let me know
Thanks

Click to expand...

This is quite helpful, there is another similar one also as a sticky too!

https://www.rollitup.org/marijuana-plant-problems/157345-have-plant-problem-check-here.html