IMHO the best way is a sulfur burner. burn once in veg and once when your 10 days in flowering. ive never had an issue with pm since using a burner
hehehe love the smell of rooten eggs in the mornin
The eagle20 I use at 5 ml per gallon spray and water um 1 time in veg...I use the greencure as the spreader......licensd commercial pesticide/herbicide applicator here Because of the outside environment where I live, I will spray right at onset of flower... usually wont see any pm until last few weeks of flower... 2 months later.... and then its not bad