Blueberry2008
Well-Known Member
Just started to see this on my indoor medical plants.
Can anybody tell what this is?
- Thread starter Blueberry2008
- Start date
sadanimalknight
Active Member
Definitely looks like PM to me!
What’s your room conditions? Are you having any temp or humidity swings?
What’s your room conditions? Are you having any temp or humidity swings?
sadanimalknight is correct about the WPM. If your still in veg spray defender by safers. Defoilage some leaves like a 3-5 days after the spray. Works great. But if your in flowering kind of hard . You can still spray but it might stress the plants out. Don’t pluck the leaves that have WPM as it will spread fast!!!
Next time get more air flower in between the plants but don’t do it now that new air flow will also spread the mildew
Next time get more air flower in between the plants but don’t do it now that new air flow will also spread the mildew
CannaCountry
Well-Known Member
The dreaded PM...
The problem is once you've noticed it on the plants it has already begun to spread its spores about the room and air. There are treatments you can employ, though as noted above, I would be hesitant to use any treatments on a flowering girl. I would see if you can manage your air flow and humidity. Eliminate the humidity firstly and then get some good air circulation going. You'll go a long way in eliminating the mold...but beware that stuff is super persistent because of how it reproduces (spores). Good luck.
The problem is once you've noticed it on the plants it has already begun to spread its spores about the room and air. There are treatments you can employ, though as noted above, I would be hesitant to use any treatments on a flowering girl. I would see if you can manage your air flow and humidity. Eliminate the humidity firstly and then get some good air circulation going. You'll go a long way in eliminating the mold...but beware that stuff is super persistent because of how it reproduces (spores). Good luck.
sadanimalknight
Active Member
One thing that I had to do on a grow once was use potassium bicarbonate spray to control pm in my last few weeks of flower. It makes the ph on the surface of leaves unfavorable to pm and it will keep it at bay for a little bit.
I would carefully remove most of the affected leaves, spray them with the bicarbonate and pray. Lol
The bicarbonate from what I read is ok to use in flower (heck, I did) but I didn’t spray the last week before harvest.
Additionally if you so choose, you can h202 rinse your flowers after cutting right before you hang and dry.
You’re not going to be able to kill it off, but you can try to control it until harvest to try and save your girls.
Plant health and room health are two causes of pm. Look at the affected plants and see if you notice anything like too much or too little air flow, too much humidity, crowded (or under trimmed plants) too high of temperature swings, etc.
Pm is everywhere, but normally healthy plants will not get pm provided the room conditions are good.
My pm was from overcrowding and not enough air flow. (Had an overly hot humid spot in my room)
Once I kept up on my pruning and added some more fans, they held back the pm till harvest. Only 2 of my 12 got it. That bicarbonate helped me in the last few weeks of flower. I would of cried if I had to chop and start over....
I would carefully remove most of the affected leaves, spray them with the bicarbonate and pray. Lol
The bicarbonate from what I read is ok to use in flower (heck, I did) but I didn’t spray the last week before harvest.
Additionally if you so choose, you can h202 rinse your flowers after cutting right before you hang and dry.
You’re not going to be able to kill it off, but you can try to control it until harvest to try and save your girls.
Plant health and room health are two causes of pm. Look at the affected plants and see if you notice anything like too much or too little air flow, too much humidity, crowded (or under trimmed plants) too high of temperature swings, etc.
Pm is everywhere, but normally healthy plants will not get pm provided the room conditions are good.
My pm was from overcrowding and not enough air flow. (Had an overly hot humid spot in my room)
Once I kept up on my pruning and added some more fans, they held back the pm till harvest. Only 2 of my 12 got it. That bicarbonate helped me in the last few weeks of flower. I would of cried if I had to chop and start over....
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hotrodharley
Well-Known Member
Consider sulfur burners.
sadanimalknight
Active Member
Sure for veg maybe, but during flower? That’s gonna mess things up. Sulpher tasting nugs is like smoking match heads.