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[Yaboty]

If yes, what to do? I can try anything at this point

[Rootsruler]

Potassium excess? Might be locking out.

[Yaboty]

Help

Top leaves turning rusty
1 month into flowering
Feeding phosphorus maximum dose day in day out every other day
discovered maybe ph high alkaline problem ( soil slur 8.2) so gave white vinegar solution 5.5 with my feed two days ago
still no recovery happening

[Bluey]

Ditto.. Don't use anything on flowers.

Having said that I can't see any flowers yet. She should recover so put her in to recovery mode by going conservative on light nutes and environment.

[Rwise]

Neem oil should not be used on flowers, some folks have had major issues with it.

[Yaboty]

2 weeks into the flowering stage

[Yaboty]

HELP!!

Leaves started looking like this after spraying with neem oil to fight septoria - i ignorantly used concentrated neem oil and then i rinsed it off after 2 days

[Rootsruler]

Yup! 2 weeks at least.

[Gingerbeard]

This is neither here nor there, but I am super curious how your bags and trays look almost brand new after growing those chunkers.
What are they?

[Bluey]

Not a leaf in sight. I'm guessing sativa dominant so a few more weeks by the looks of it.

No doubt the watering has dropped right off, you cut off all the leaves. If you had of left them on you could reliably tell growth rate from water uptake which gives you a good idea on harvest time.

[Shenandoah]

Hi all

Thanks for all the comments- super helpful!

I’m wondering if my plants are ready to harvest. I’m actually going out of town tomorrow (poor planning with the timing). So I can either harvest now, or in about a week. There still seem to be a lot of white pistols, especially in the lower branches, but in other parts they’re almost all curled up. I don’t have anything to magnify the trichomes, can’t tell if they’re clear or white.

What do you guys think?

[Bluey]

I did it to stop the coco from drying out.

I'd only do it as long as you can keep humidity down. These girls had a canopy of about 9' x 6', and hardly any defol. They were big.

When I dropped temps from 23⁰C to 22⁰C in mid to late flower the water uptake dropped a lot as humidity didn't drop much as 40% was as low as I could go at those temps with 5 huge plants.

Dehumidifiers that work well at 22⁰C are very expensive, mine couldn't go below that temp without issues.

[Rootsruler]

Do you think lights out feeds are ok? I was told the plants change up processes at lights out and uptake is reduced in favor of processing the sugar that was made during lights on.

[Bluey]

Well I feed say 3 times a day and once at night thereabouts and I was starting to get algal
growth on one of the pots.

Each feed at max they would take about 4 to 5 gal ( 5 off 7gal pots) when they were at there thirstiest, so more than 2 gal per day each. From memory a few maxxed out around 2.5 gal/day.

When I had 4 not quite so large plants (harvested about a pound each total) in 13gal pots a 25 gal reservoir would last
about 5 days max at there peak.

I automated it in minutes and adjusted the sprayers to deliver the correct amount. Sprayers would regularly block and flows would slow a tad as the week went on so I'd just give it a bit more on the timer remotely. I wouldnt do it without a drain to waste because of risk of flooding. Manually I didn't bother draining to waste, just used saucers I'd have to suck dry from time to time.

[Rootsruler]

I'm thinking of setting them up on a reservoir/auto irrigate and program in around 8 -12 feed events a day on the digital timer. I'm thinking that it would also be a good idea to give them a deep watering once a week to make sure all the media gets wet.

In veg that would mean they get a feed every 1.5 to 2 hours at lights on. Obviously the feed times will be around a minute or two per event but I'll need to stay on top of the timing and intervals as the water needs change to make sure the volumes are correct.

Bluey - I'm thinking of using the amounts of water I typically use at whatever growth stage the plant is at as a basis to determine the feed event volumes, In five 7 gal pots I was feeding around 5 - 6 gallons in veg and around 6 - 7 in flower every 3 - 4 days. If I run 8 events a day that would mean each event would use around an 1/8 of a gallon or around 480ml per event. Obviously in early veg they'll get less but, I would say after week 3 of veg, this is the volume I tend to see. I may add a few more ML per event to make up for evaporation but I think I'm pretty close.

I'll adjust as I go along but I think this would be a good way of having a threshold to start from.

What do you think?