Brown spots

Plant has just gone into 12 hours natural light and 12 hours dark. Sprayed it recently with bi-carb due to what I suspect was mildew. Anyway today these brown spots have appeared on the newest growth. Any ideas?
Cheers

Athenry04 said:

Plant has just gone into 12 hours natural light and 12 hours dark. Sprayed it recently with bi-carb due to what I suspect was mildew. Anyway today these brown spots have appeared on the newest growth. Any ideas?
Cheers

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Looks like you sprayed it when the sun was up.

Cheers dude, could well be that. Seemed to come up not long after the spray so makes sense. The PH is 7, and I have been frying them with too many nutes, so your suggestion seems most likely. I'll check on her later, and see how she's looking.

Hi, new issues developed seemingly overnight. In the fourth week of flower now, and the leaves seem to be taking a kicking, seems to be centred on the middle up. It's affected most of the plants, some are displaying yellow leaves with dark patches as shown, and others are dark rust coloured spots in the veins. PH is around 7, growing in soil, any ideas?
Cheers for looking.

I hate saying this because it' a popular response. Looks like nute burn. in the first pic it's awfully luscious green. A lil much. In your last post with the white spots. That's damn sure burnt from water droplets evaporating in the sun. No doubt.

If so, you would flush and lower your nutes. If you have a lot premade. Dillute it with fresh water and then PH it to 6.0-6.5. Looks like she's having no prob absorbing nutes tho. Looks like you have what some on here call the "claw." Ask someone else for definition.

Thanks for the reply, the first post showed burn from the light source after I sprayed them. The last three has me baffled, the leaves are hanging limp and lifeless about half way up, and are turning yellow. some of the leaves display the claw, and when the soil is a little drier I guess a flush is needed. They are close to half way through flower, and now I'm worried they might not make it. The buds look fine, but it's the look of the leaves that is doing me head in, cheers.

Ok flushed the plants with pure water before the 12 off spell. Come back tonight to find, the leaves looking just as dead or dieing and weird growth on one of the buds, that I nipped off, but hope it wasn't a hermie. These plants have survived spider mites and various other ailments, and now with the finish line in sight, they might not make it. Any help on the leaves would be appreciated, seems to affect middle and up and is spreading towards the top leaves, rust colored spots and a yellowing of the leaves. Could it be mould? Cheers