Originally Posted by slownickel
Most folks are scared to death of using a microsprinkler under plants, much less indoors or a green house.
Which microsprinklers are you using? Do you know their throw distance and flow rates per hour?
Do you have to use more resistant varieties using microsprinklers?
Actually what we do it use ordinary impact sprinklers raised up on 10 foot t posts.
The average humidity here in the summer is like 20%. The plants really love the humidity boost, and putting water on the foliage seems beneficial as long as you don't keep it up past flower set.
After stacking starts, I supplement with hand watering instead of overhead.
Used to worry too, but a dude who's been growing around us for more than 30 years convinced us it's OK.
Not one single speck of PM in the garden this year (except on some red clover). Small amount of botrytis and incipient budrot on a few phenos, nothing to worry about.