Plant issue

[Golf278]

Hi,

does anyone know the issue here? I presume it could be a number of things.

My PH tester isn’t here until tomorrow and I’m going to get calmag now from the shop.

I’ve used biobizz nutes: grow, bloom, algamic & topmax.

plant is about a week into flower, been perfectly healthy until I spotted that leaf.

Thanks

[Rwise]

Root/PH issue, most likely a feeding done this.

[Golf278]

Over feeding?

[SoOrbudgal]

I'd say so overfed just slow down on the N of the PK more important. I would give it 2 plain waters before doing feed again. Allow to really dry out and go easy with different chemical ferts.

[OlderNOTwiser]

If you have a loop or some way to magnify to 30 or even 60x please look under the leaf coinciding with the spots. Looks buggy to me.

[Golf278]

Is that ok or shall I upload a video?

[Golf278]

If you have a loop or some way to magnify to 30 or even 60x please look under the leaf coinciding with the spots. Looks buggy to me.

[Rwise]

Outside you will have some bug damage, lovely!

[Golf278]

The plant is inside?

[Rwise]

Maybe time for some spinosad

[OlderNOTwiser]

Golf278 Post that video/link for the gang. At 2 seconds left I see suspicious coloration. Looks fuzzy to me on the right side of the main vein. Younger eyes and more views will help dial it in.

[Golf278]

https://imgur.com/gallery/fR2f0X4

[Golf278]

I’m based in the U.K., using biobizz light mix, my ph is really close to 8 (I only got a ph reader yesterday, it’s one of those manual looking ones), on my next feed I’m going to use some ph down or vinegar to try and bring it down.

[Rwise]

I use pelleted sulfur to control PH down, add it to the soil along with some pelleted dolomite (PH up) to buffer PH in the soil.