No, PM in not systemic in the sense that it comes from the system of the plant, from what I've read and in my opinion. It is systemic in a macro system sense, meaning it is all around us in our environment. Just like mold PM is in the air outside, and inside, unless you are filtering your air. It propagates and thrives in the right conditions, such as moist stagnate air. Prevention should be your main line of defense.
What you need:
- A dehumidifier (especially if doing hydro) to make sure your RH is %50 (I prefer %40).
- Proper fanage, to make sure air is moving all through your plants.
- A filter on your intake air (air coming into the room from outside). And one that filters out mold spores.
- A Sulfur burner.
Also:
- You should trim away large fan leaves that are clumped together, especially lower on the plant where no light is getting to anyway. This helps to keep air flowing better.
- If you have bad PM now reset your room. Remove everything and wipe down the walls with white vinegar. Or Paint with mold killing primer.
- Green Cure works well as a preventative foliar spray on area where leaves are dense. Spray early in the light cycle so leaves have a chance to dry fully.
- Watering or spraying should not happen right before you turn out the lights.
PM like pests and everything else is best handles preventatively. If you get behind the curve on fighting PM and pests you're fucked. Make sure you have a controlled and clean environment and you'll save yourself much grief.
High,
normally i never have a problem with PM... My Autoflower Plant has it and later on my New Seedlings. I thought it is easy to Fight against it but no..... Can i clean my Tent with ISO Alcohol it's maybe better than Vinegar. What a filter i need for Air Intake?