Outdoor First Time Grower In Ontario Canada

I had to travel for work for 2 weeks, came back to a bunch of leaf septoria, removing leaves as fast as I can and treating with Doktor Doom fungicide. Not finding any sources for something stronger like zerotol or regalia or Bacillus subtilis. If anyone knows better treatment please let me know! So far just the Cherry Gar see-ya and Candy Store R1 has it. Orange kush cake is huge but not really showing any signs of flowering which freaks me out a bit. It's been so wet and humid this year, every few days it pours rain and the other days are crazy humidity.