I live in Massachusetts, last year I got wpm and I got it again this year a week or two ago after alot of rain. I've been using a milk spray every 4-5 days or the next sunny day after a big storm and it's doing a good job keeping it at bay. But my question is how long into flower can I keep spraying the milk? The plants look great after a spray and I can tell it helps so I would like to continue spraying as long as I can. So if you have used this method to control Wpm on outdoor plants when did you stop using it?