I'm not sure if i have powdery mildew or not. i first recognized some white spots on some bottom leaves a month ago. When i checked my plant today it spread a little to the middle. But the white spots don't look very spotty like some pics i saw. just some big spots of white on a few of the big fan leaves. i also saw some puffy white cotton ball like stuff on the bottom of one leaf. What does my plant have? is this normal and will my plant be ok? its just about to go into flowering. sry i coulnd't get pics.
You need proper ventilation. You could start foliar spraying with some home made TEAS. The organism's in the tea will kill of the Powder mildew and help to keep it from coming back. Or you could use that Eagle20 but I would try something less toxic first. But you should fix the problem of whats creating the problem. and 9 times out of 10 its because improper ventilation.
It sounds like Downy mildew to me monsterhitz. Downy mildew is much whiter and thicker/heavier than Pm and downy mildew is harmless really.
When you see the white, almost opaque appearance of Pm in the field, the fungus is in its final stages and is "flowering" so to speak. The opaque whiteness are spores being released. By the time you see white with pm, the plant is very sick and has numerous yellow leaves. The disease has been in the plant for several weeks and is systemic in nature. Powdery mildew is incurable. It is easily preventable but practically impossible to cure once contracted.. The chemical in Eagle 20 or Immunox will control the disease hopefully to the extent that it doesnt hurt the plant to badly, (not always)but it will still have the disease until the weather turns cool enough that the fungus dies.
I wouldnt use Eagle 20. Its far far too strong a concentration of chemical to apply to cannabis and even though when smoked you cant feel the effects of it, its in the plant tissue. Immunox is the same chemical but in a far safer dosage for cannabis and kills pm on contact. Its sold in many home improvement and garden stores as Spectracide Immunox all purpose fungicide. Its perscribed for vegetables and is in a dosage thats safe. Eagle 20 is for commercial applications and is not safe for cannabis. You will be smoking the chemical if you use Eagle 20. You just wont know it..
But as i say, youre describing Downy mildew. If the plants arent also sick, its Downy. Google and read about it.