[Papa_-_Raoul]

Hard reset, kill it, treat for pm, clean with bleach + run ozone machine re clean with bleach and pop new seeds. I do not fuck with pm ….

[alwaysgrowing12]

I’ve had some success with purecrop1 but it’s a bit expensive. I’m with @Papa_-_Raoul on this one. Run it back if you can.

[Georgia_On_My_Mynd]

You said you didn’t see anything when u were looking…..but given those spots on the fan leaves….a very early spider mite infestation can look like powdery mildew before it becomes obvious.

Either way, for PM I’ve had success in early flower mixing 1/2 tsp potassium bicarbonate, 1 qt distilled water and a single drop of original Dawn soap (binding agent). Spray everything once a day for 5-7 days.

For spider mites, at the next lights off (timing is important), spray Captain Jacks Dead Bug (spinosad) as directed on the underside of everything (including nodes and branch joints) until it drips. Do this every 3 days for 10-14 days. One caveat….spinosad is contraindicated after week 3 of flower.

DON’T PANICK!!

Good Luck!!

[bhangdog]

A member of this community posted info on how he treats PM. @bad-river-farms-rob posted here and YouTube.

Powdery Mildew On Cannabis – Fungicide Replacement Potassium Foliar Safe for You and the Plants

[bad-river-farms-rob]

PM is a nightmare. Mr. Sparkles developed a safe effective spray profiled on our YouTube channel Bad River Farms (having trouble linking it sorry). The spray is very safe, even in flower. We just passed testing with 200 CFU/g where the average in the U.S. is 1000-100,000 CFU/g and up to 1,000,000 for yeast and mold including PM.

It is certain ratios of potassium bicarbonate and citric acid. It won’t burn the pistils, you don’t need an applicators license, you can get it on your skin (even drink it) so it’s pretty safe. Dr. Matthew Debacco is studying it at UCONN. It is keeping our thrip issue completely under control and it turns into CO₂ as a byproduct.

After we harvest we hit our rooms with ozone. BE VERY CAREFUL IF YOU USE OZONE. It’s will heavily damage or kill the cell walls of humans, pets and plants. Never be in the same room as a running ozone generator and let the room clear before reentering. It WILL fuck up your lungs. It just works great at killing mold and PM etc., especially in hard-to-reach places. Just be very careful with ozone.

Good luck

• This reply was modified 1 day, 7 hours ago by  bad-river-farms-rob.