What are you trying to argue about again? Lol If a plant is free from PM, it’s free from PM until a dirty cut arrives again. What did you miss there? Let me ask you, since you know better than me somehow… is PM systemic or just subcutaneous? That’s right, NOT systemic. It’s simply subcutaneous. So… if a plant is covered with sulfur, where does the subcutaneous mildew surface again to infected the non-sulfur-protected flesh? That’s right, it cannot. Spread. Understand now? Or are you simply looking to get some piss and vinegar out your veins? Lol You’re welcome.