It's gotten so warm, I am thinkin' I will have to spray the trees Friday, if there continues to be a window of a...

It's gotten so warm, I am thinkin' I will have to spray the trees Friday, if there continues to be a window of a couple of days with above freezing temps at night and no rain. You neither want the spray to freeze, nor to wash off. I don't know if more poisonous chemical sprays have these issues, but the stuff that isn't exactly non-poisonous but won't kill you if you touch it/eat it definitely has rules.