powdery mildew

  1. H

    Snow or mold?

    I'm doing an outdoor grow of an all CBD plant (Doctor Seedsman). I really haven't done much to it this year so the buds aren't huge but I'm hoping to get at least a bit from it. I'm wondering if the white on the sugar leaves is a mold like powdery mildew or is it trichomes that haven't...
  2. Jetli1

    Will Green cure fungicide hurt my ladybugs

    Wanted to do a preventative spray for pm on my cannabis outdoor grow in humid, rainy Michigan. Im using Green cure fungicide but I just released ladybugs a few days ago. Will the spray hurt or chase away my beneficials? I can’t find any related info online. Thanx peeps!
  3. S

    Powdery Mildew

    While I don’t see any plant distress or any symptoms of powdery mildew on the plants themselves, I have noticed that the room the tent is in has a white haze (sort of looks like smoke but has no smell) in the air over the last two days. ive since opened an exterior window to improve airflow and...
  4. B

    Powdery mildew HELP need UVC sterilizer

    Hi people, i heard that UVC sterilizer (ozone lamp) should help kill powdery mildew. There’s so many of them that i have no idea which one to pick. If anyone used any of those send me the link and how it works. I’m based in UK, would be nice if i could solve this in approximate of 2 weeks
  5. Dreminen169

    Questions about powdery mildew

    Can PM live in the soil? Would it be safe to reuse the same soil after I culled a plant that was showing PM? Maybe dig out the top layer of soil? Will fabric pots hold spores? I have other fabric pots that were in the same tent that are still growing plants which are not affected (who knows if...
  6. J

    Potassium bicarbonate wash after harvest

    My plants have powdery mildew. I’ve been using Mildew Cure from safergrow and it has definitely kept it from spreading, but I still see spots here and there. I’m wondering if anyone has tried to wash their buds in a solution of potassium bicarbonate and water after harvest, followed by a rinse...
  7. Green_Alchemist

    Any tips for using wettable sulphur for PM in veg?

    So today I picked up some wettable sulphur, heard it was quite a good product for keeping PM inactive / at bay. Any tips or advice before I spray during lights out tonight? (Edit: I’ve read about it quite a bit but got a few different ratios or other ingredients added, hoping to see what’s works...
  8. S

    PM or Trichomes?

    Hey guys, currently on day 34 of flower for these girls. Was wondering if this is PM or just trichs.. really hoping for the former.
  9. Jhef

    S.O.S. Powdery Mildew 2 days before harvest

    Day 56 and I see some beginning spots of PM. Was putting off buying a dehumid for another room since temps are getting hot and It screwed me. Went and got proper dehumid needs today. What do I do? I just put them into darkness for 48hr. Should I spray them with an h202 mix? Should I wash...
  10. calvin.m16

    ZeroTol for Powdery Mildew

    I've noticed that zerotol has given me 100% success eliminating Powdery Mildew alongside proper environmental control (dehumidification, air conditioning, airflow (fans) and such) and literally before I tried nuke em, plant therapy by lost coast, purecrop1, regalia (This works but is funky...
  11. D

    Tips for fixing buds with powdery mildew post-harvest?

    I've just grown 3 autos in an indoor grow tent over a wet summer and have had ongoing problems with humidity throught the grow This was my first grow and I have probably made every mistake imaginable in this respect Late in flowering, I noticed botrytis in one of the colas of one plant. After...
  12. MicroGrowerTim

    What is the Diagnosis? Mildew? Nute Burn? Both?

    Hello there my fellow growers Here is my girl with 30 days of her life, right now we are going trough veg on a micro grow with 106W. Recently topped and just started LST. All was good until I noticed some white and yellow spots on the tips of her lower leaves. I believe some of the yellow...
  13. C

    Mildew outbreak - harvest now or wait?

    This is my first time growing and my plants have been struck by a mildew outbreak in the past few days. My plants are about 7-10 days from peak harvest time. I am looking for advice on whether I should harvest immediately due to threat of mildew infesting the buds, or if it's better to treat the...
  14. potgrower123

    Powdery mildew got one plant bad.. how do I make the most of it?

    Hey folks, it’s harvest season and I discovered when chopping one of my last plants that it got hit pretty bad with powdery mildew. Some had light mildew on leaves but this one mildew advanced into the buds somewhat. Wondering if I should attempt to cut out mildew here and dry? Or trash? Or...
  15. D

    Dust-like specks on plants: What are they?

    My indoor plants are in veg and were tearing ass, then suddenly they got these saw dust-like specks on the leaves along with a clear but somewhat sticky film. I also see the specks on the tent walls in places too. Powdery mildew comes up on must searches, but I doubt whether its that (it...
  16. CBDseeker

    Long post looking for discussion on harvesting with history of recurring thrip, WPM and foxtailing issues. dealing with space afterwards.

    Alright so first of all, I live in Canada, which is why you won't see mention of spinosad in my efforts so far, but I have received some in the mail which I can now use going forward. Thank you very much in advance for anyone willing to read all this and offer feedback and advice I have 3 5x5...
  17. itsjasonovak

    Powdery Mildew or frosty sugar leaves?

    I'm in week four of flower, and I noticed my plants starting to stink significantly more, and I was excited to start to see some trich development on some of the sugar leaves the past week or so! The sugar leaves have started getting more and more frosty, to the point I'm starting to become...
  18. B

    Getting ready to harvest

    I had afew Q: before i harvest i have a slight mite prob and very slight PM issue so im going to do the three step wash+ with first bucket w/lemon juice & baking soda, second bucket peroxide water & the third w/plain water my Question is how long after hacking them down do i have to wash them...
  19. W

    Did my Plant hermie? Whats this white stuff? Powdery Mildew?

    Guys I don't know what is going on. It's week 3 of flower and everything was looking great but the past couple days I have noticed some white stuff on the leaves of my plant. I should have taken better pics before cleaning it off today but I used a wet paper towel to wipe it off after reading...
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