some sort of burn on leaf. PIC

Jus picked it from 1 of my master kushes 2nd set of fans from the bottom.
can anyone identify what it could be?
thanks in advance folks.

Pray it isn't Mosaic virus...

Probably just calcium deficient, or phosphate toxic, or both.
I just came from another thread with the same problem.

Also looks like you could benefit from a touch more potassium.

Snow Crash- do you know anything about mosaic virus? I think I bought a few contaminated DJ Short's Blueberry clones from San Diego Green Care. I've been treating them, but I'd like to know more about the virus. The collective, of course, denied responsibility and said it was acquired after purchase. However, the virus has been found on all 3 plants - and they're growing in 3 different parts of the county, in somewhat closed environments.

Snow Crash said:

Pray it isn't Mosaic virus...

Click to expand...

By mosaic do you mean septora???

Dont tell me there is yet another esoteric disease to worry about.

The mosaic I know of in regular gardening, is tobacco mosaic. Most commonly afflicted are Tomato's.... the plant cousin of Tobacco. Smoking near tomato's touching tomato plants after smoking, or growing tobacco too close to tomatos are brilliant ways to infect tomato plants.

Septora is kinda like that. It comes from Hops, the plant cousin of Marijuana. The brown necrotic spots kinda look like septora... but it could be nutrient deficieny judging by the way the leaves yellowed.

One possible source... if the grower you bought the clones from is running a daft experiment with grafting Hops.... or otherwise has Hops in the grow room because its cool or whatever. Or maybe was handling infected Hops buds when making some homebrew. Or walked it into the grow space, after handling infected hops in his regular garden.