Brown spots on leafs and drying out

fotoidMember
The leafs on 2 out of 5 plants have brown spots and curling up. Pictures aren't the greatest. Using ocean forest soil. 1,000 whatt hps bulb in a 5x5 tent. Any ideas?

Ph problem probably, could be mag def. could be a million things without you telling us what your doing to your plants exactly, temps, light, feed,ph, etc etc

Ok. The temp runs about 75 to 85 degree. I use ocean forest soil bubba grow nutrients about once every other week. I use tap water 7ph let it sit about a week before watering. I use a 1,000 watt hps bulb. I have 5 plants in my tent but only effecting 2 of the 5. Growing white witch. Plenty of fresh air. They have another 2 or 3 weeks if grow to go. Buds look fine just all the leafs are turning brown and drying up. Thanks for any input.

You're starving your plants, and your pH is too high, therefore what little nutrients that would be available for uptake is not readily available to them. (Also want to know your humidity levels)

*Feed balance nutrients more often, buy pH meter

Also letting your water sit is a lot less important than adjusting your pH properly.

You need to read more for best results, check out ilgm or grow weed easy websites
-good luck!

Thanks a bunch. Will buy a better ph meter and drop the ph to about 5.5. Hope that'll work. Is it too late for the plants I have growing now?

fotoid said:

Thanks a bunch. Will buy a better ph meter and drop the ph to about 5.5. Hope that'll work. Is it too late for the plants I have growing now?

Click to expand...

6.5 in soil for best results

Damaged leaves don't come back but make a change and save what you have, if I were you I would flush immediately with 6.5 pH water followed up by a proper feeding at full strength (calibrate new meter properly!)

and I would always feed at full strength every feeding. once every few weeks do a light flush with 6.5 plain pHed water. I flush maybe twice, three times depending on how long they flower so about once a month, but that's just how I do it

If you lose too many leaves you're not going to get best results.

Also need humidity meter ( $8 ) to rule out any type of fungus ? When I had septoria I had worse looking plants believe me, that's why I want you to begin to monitor your humidity, you need to keep it below 60% in flowering at all times for best results

Good info there.

After flushing plants with 6.5 ph I tested the runoff and it was 5.5. Only 2 of my 5 plants have the tips of the leaves turning brown and drying up. Anyone have thoughts on the reason?

Now I'm getting white spots on my leaves. What the hell.....

Looks like pest damage.
Inspect under leaves w magnification.
Best of luck!

Inspect, spray down the plants with the hose or in the shower, clean your grow area thoroughly, vacuum, bleach wipe down, vacuum the breath room, vac and wipe the grow area again, hit the plants with the hose one more time to knock down some more bugs, treat plants with spinosad, neem and bti(treatments not all on the same day, I’d probably use bti day one, then neem oil then the spinosad) probably want to water some bti into your soil too, kill any pests hiding in there.

things to clean you may forget about: fans(inside and out) ducts, pre filters, filters.

props on resurrecting your old thread to ask a new question. Less clutter is better.

Also air conditioning filter change, fan in the dehumidifier. Anywhere dust and bugs collect.