Welcome to the cannabis growing issues and help section. Use this section to ask about issues, deficiencies and other problems you encounter while growing cannabis. To become part of our online cannabis growing community click here to register.
Powdery Mildew?
- Tom1974
- Registered User
- Posts: 170
- Joined: Tue Apr 19, 2022 8:42 pm
- Has thanked: 75 times
- Been thanked: 138 times
- Status: Offline
Powdery Mildew?
Pic to be uploaded in the morning but a fair few of my big leaves have little white specs/dots on them
Only noticed today by chance but don’t think it’s been going on too long
Humidity is 55-60%
Temps never lower or higher than 23-27 degrees
Hoping it’s nothing serious but if it is, what can I do to help?
Cheers gang
Only noticed today by chance but don’t think it’s been going on too long
Humidity is 55-60%
Temps never lower or higher than 23-27 degrees
Hoping it’s nothing serious but if it is, what can I do to help?
Cheers gang
- These users thanked the author Tom1974 for the post:
- Jayme Ream (Sat Jun 04, 2022 2:15 pm)
- MrNice
- Registered User
- Posts: 10709
- Joined: Fri Apr 24, 2020 7:25 pm
- Has thanked: 4883 times
- Been thanked: 6212 times
- Status: Offline
- seymore_budz
- Registered User
- Posts: 2389
- Joined: Mon Sep 09, 2019 7:18 pm
- Has thanked: 619 times
- Been thanked: 1448 times
- Contact:
- Status: Offline
Re: Powdery Mildew?
Would have to see a photo but 60% of the time its just salts from a foliar or a stray splash when watering. Best thing is to get yourself a picket microscope/jewelers eye.
Those who can make you believe absurdities can make you commit atrocities.
- Tom1974
- Registered User
- Posts: 170
- Joined: Tue Apr 19, 2022 8:42 pm
- Has thanked: 75 times
- Been thanked: 138 times
- Status: Offline
Re: Powdery Mildew?
So here’s the pictures guys and quite bad
Underside of the leaves are fantastic it’s just the fronts And weirdly enough more the bottom leaves not so much the upper ones
Humidity last few days has been 65% and even with a dehumidifier in there I can’t get it down
Any help or advice would be much appreciated






Underside of the leaves are fantastic it’s just the fronts And weirdly enough more the bottom leaves not so much the upper ones
Humidity last few days has been 65% and even with a dehumidifier in there I can’t get it down
Any help or advice would be much appreciated






- Greenfingers
- Registered User
- Posts: 2701
- Joined: Tue Mar 17, 2020 7:53 pm
- Has thanked: 3576 times
- Been thanked: 2395 times
- Status: Offline
Re: Powdery Mildew?
thrips or mites
, get a magnifying glass and have a realy good look all over the leaves.

- Tom1974
- Registered User
- Posts: 170
- Joined: Tue Apr 19, 2022 8:42 pm
- Has thanked: 75 times
- Been thanked: 138 times
- Status: Offline
Re: Powdery Mildew?
Devastated if so mate, I was flying with this first run
As soon as the shops are open I will go and grab a magnifier
Anything that would stand out to confirm it once I get one buddy?
As soon as the shops are open I will go and grab a magnifier
Anything that would stand out to confirm it once I get one buddy?
- Greenfingers
- Registered User
- Posts: 2701
- Joined: Tue Mar 17, 2020 7:53 pm
- Has thanked: 3576 times
- Been thanked: 2395 times
- Status: Offline
Re: Powdery Mildew?
Mate dont let it worry you to much
https://www.dinafem.org/en/blog/fight-thrips-cannabis/
i use Hotshots when i find a bug problem as they work well but do your own research before using

https://www.ebay.co.uk/itm/183072647335 ... 1438.l2649
- These users thanked the author Greenfingers for the post:
- Tom1974 (Wed Jun 01, 2022 8:19 am)
- Tom1974
- Registered User
- Posts: 170
- Joined: Tue Apr 19, 2022 8:42 pm
- Has thanked: 75 times
- Been thanked: 138 times
- Status: Offline
Re: Powdery Mildew?
Thanks mate really appreciate your help and trying to calm me downGreenfingers wrote:Mate dont let it worry you to much
https://www.dinafem.org/en/blog/fight-thrips-cannabis/
i use Hotshots when i find a bug problem as they work well but do your own research before using![]()
https://www.ebay.co.uk/itm/183072647335 ... 1438.l2649
Right near the end too DOH
- These users thanked the author Tom1974 for the post:
- Greenfingers (Wed Jun 01, 2022 8:21 am)
- Greenfingers
- Registered User
- Posts: 2701
- Joined: Tue Mar 17, 2020 7:53 pm
- Has thanked: 3576 times
- Been thanked: 2395 times
- Status: Offline
Re: Powdery Mildew?
@GMO has just had the same problem.
- These users thanked the author Greenfingers for the post:
- GMO (Wed Jun 01, 2022 8:24 am)
- Tom1974
- Registered User
- Posts: 170
- Joined: Tue Apr 19, 2022 8:42 pm
- Has thanked: 75 times
- Been thanked: 138 times
- Status: Offline
Re: Powdery Mildew?
What did you do about it @GMO ?Greenfingers wrote:[mention]GMO[/mention] has just had the same problem.