eagle 20 works on rust if you can get it. I wouldn't spray it after week 1 of flower. Bayer disease control is basically the same thing but a different brand. 2ml a gallon on the eagle 20, 10 ml a gallon on the bayer. These 2 are really the only things that work well everything else is just a bandaid.
u.g.u Reviewed by u.g.u on . Rust Fungi..!! First Time Having it. Need Some Help. Pics Included!! So I've been growing for many years, and have dealt with just about everything, from pest, to mildew/molds, lockouts, root rot.... you name it. But I've never came up against the issue of Rust Fungus. I just recently got it and its spreading like wild fire. I know that cold, wet conditions are ideal for Rust Fungus, so we plan to raise the temps, and apply some different Fungicides (since our current one obviously isnt working). The RH is already supper low in the room, so moisture isnt the Rating: 5