Please help me with my problem ! PM ! DR DORIGHTS

My babies are guina be done in 2 1/2 weeks.. is it still okay to use Dr.DoRights this close to harvest?? PLEASE HELP! I HAVE POWDERY MIDLEW... not too bad but its there!!

whats the temp and humidity at? soil or hydro? personally if its not that bad at all i usually clip affected leaves with so little time left. was there a temp spike recently?