Any suggestions greatly appreciated. Was transitioning to flower so they received an equal dose of Micro, Grow, and Bloom this week. I thought I had either a ph issue or had locked out some nutes due to spots/tacoing. Had extreme humidity for a few days which is making me question mildew as the culprit. Affected old & new growth, top to bottom but random leaves. Some of the fans were 10"+ so it was definitely crowded.
Trimmed the bad leaves, applied neem based fungicide spray and really curious as to what the experts think?
Purple Haze & White Widow
GH Flora, Cal Mag, Armour Si, H202
842 PPM and steady dropping, 1.62G per day consumption
Air 70-78F Day, 66-72F Night
Water Res 66-69F
Humidity shot up to 80 & 90% this week but back down to 65-70%
600w MH, 320w LEDs 18/6
7 Weeks from Seed in Transition to Flower