First Grow, Help Needed

[Chippy1]

Hey People
I am in what I think are the last few weeks before harvest and my plants have taken an odd turn (9weeks into flower).
One looks fine (maybe bit dry) with a few big fan leaves around the buds while my other two have only dead brown leaves in the buds. I did forget to water for about 4 days but they seem to be getting worse, see pics.
They are growing under a 400W HPS bulb 12/12, with a fan extracting hot air constantly and open vents at the bottom of the tent to allow fresh air in. Temperature is between 20-30oC. I have a dehumidifier on for 3 hours a day to keep humidity between 30-50%.
If anyone can tell me what could have caused this, what can I do to fix it and how to prevent it happening again I would be very grateful. If it was just not watering for 4 days and I can't recover please advise on whether I should crop now.
Let me know if you need more info

Cheers
C

[Macky]

Hey People
I am in what I think are the last few weeks before harvest and my plants have taken an odd turn (9weeks into flower).
One looks fine (maybe bit dry) with a few big fan leaves around the buds while my other two have only dead brown leaves in the buds. I did forget to water for about 4 days but they seem to be getting worse, see pics.
They are growing under a 400W HPS bulb 12/12, with a fan extracting hot air constantly and open vents at the bottom of the tent to allow fresh air in. Temperature is between 20-30oC. I have a dehumidifier on for 3 hours a day to keep humidity between 30-50%.
If anyone can tell me what could have caused this, what can I do to fix it and how to prevent it happening again I would be very grateful. If it was just not watering for 4 days and I can't recover please advise on whether I should crop now.
Let me know if you need more info

Cheers
C

She’s coming to an end for sure mate, have you check the trichomes ( thc crystals)

[Gaz]

Macky is that the plant sucking the nutrients from the leaves itself yeah ? Coz shes nearly done

[Macky]

Macky is that the plant sucking the nutrients from the leaves itself yeah ? Coz shes nearly done

Could be mate, she is looking ready, trichs will tell if she is close or finished. They’re looking dry as well as pale, which could be from fan burn, humidity too low, with too much of a strong breeze blowing over them will evaporate the water from the leaves and dry them out like this.

[Chippy1]

Cheers
Could I be under feeding her if she's doing that?
If i'm honest I've not been very good at tracking how often I feed her

[Chippy1]

Could be mate, she is looking ready, trichs will tell if she is close or finished. They’re looking dry as well as pale, which could be from fan burn, humidity too low, with too much of a strong breeze blowing over them will evaporate the water from the leaves and dry them out like this.

You're probably bang on there. I have had my desk fan and dehumidifier blowing straight onto them. I'll run down stairs and face them against a wall now.
I will also bring my eye glass back from work and check the trichomes.
Fingers crossed they're ready desperate to get them dried cured and tested!!

[Macky]

You're probably bang on there. I have had my desk fan and dehumidifier blowing straight onto them. I'll run down stairs and face them against a wall now.
I will also bring my eye glass back from work and check the trichomes.
Fingers crossed they're ready desperate to get them dried cured and tested!!

On the button. Lovely lol. You’ll need something that magnifies between 60 and 100 x mate.

[cannabisphilanthropist]

any closer pics,,they don't look near harvest to me.

[Macky]

any closer pics,,they don't look near harvest to me.

Yer you’re right, a closer look, those white hairs are straight, and new, you’ve got weeks left

[G']

Definitely need a loupe or scope with a minimum 60x to check those trichs guess work is no good whatsoever for harvesting, all the best brother, G'.